/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:34:32,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:34:32,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:34:32,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:34:32,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:34:32,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:34:32,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:34:32,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:34:32,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:34:32,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:34:32,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:34:32,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:34:32,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:34:32,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:34:32,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:34:32,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:34:32,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:34:32,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:34:32,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:34:32,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:34:32,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:34:32,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:34:32,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:34:32,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:34:32,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:34:32,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:34:32,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:34:32,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:34:32,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:34:32,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:34:32,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:34:32,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:34:32,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:34:32,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:34:32,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:34:32,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:34:32,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:34:32,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:34:32,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:34:32,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:34:32,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:34:32,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 19:34:32,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:34:32,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:34:32,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:34:32,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:34:32,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:34:32,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:34:32,320 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:34:32,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:34:32,320 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:34:32,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:34:32,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:34:32,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:34:32,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:34:32,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:34:32,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:34:32,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:34:32,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:34:32,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:34:32,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:34:32,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:34:32,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:34:32,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:34:32,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:34:32,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:34:32,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:34:32,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:34:32,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:34:32,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:34:32,590 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:34:32,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-12-12 19:34:33,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:34:33,812 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:34:33,813 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-12-12 19:34:33,817 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbd7488ae/83dcae03c0d5486b8613acf42d594418/FLAGe517b330e [2022-12-12 19:34:33,832 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbd7488ae/83dcae03c0d5486b8613acf42d594418 [2022-12-12 19:34:33,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:34:33,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:34:33,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:34:33,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:34:33,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:34:33,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:34:33" (1/1) ... [2022-12-12 19:34:33,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52355cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:33, skipping insertion in model container [2022-12-12 19:34:33,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:34:33" (1/1) ... [2022-12-12 19:34:33,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:34:33,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:34:33,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:33,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:33,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-12-12 19:34:34,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:34:34,035 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:34:34,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:34:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:34:34,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-12-12 19:34:34,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:34:34,102 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:34:34,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34 WrapperNode [2022-12-12 19:34:34,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:34:34,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:34:34,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:34:34,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:34:34,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,141 INFO L138 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 255 [2022-12-12 19:34:34,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:34:34,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:34:34,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:34:34,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:34:34,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:34:34,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:34:34,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:34:34,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:34:34,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (1/1) ... [2022-12-12 19:34:34,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:34:34,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:34:34,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 19:34:34,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 19:34:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:34:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 19:34:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 19:34:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 19:34:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 19:34:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 19:34:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:34:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:34:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:34:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:34:34,252 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:34:34,375 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:34:34,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:34:34,632 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:34:34,769 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:34:34,770 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:34:34,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:34:34 BoogieIcfgContainer [2022-12-12 19:34:34,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:34:34,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:34:34,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:34:34,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:34:34,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:34:33" (1/3) ... [2022-12-12 19:34:34,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dea4865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:34:34, skipping insertion in model container [2022-12-12 19:34:34,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:34:34" (2/3) ... [2022-12-12 19:34:34,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dea4865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:34:34, skipping insertion in model container [2022-12-12 19:34:34,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:34:34" (3/3) ... [2022-12-12 19:34:34,777 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-12-12 19:34:34,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:34:34,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:34:34,789 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:34:34,841 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 19:34:34,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 145 transitions, 314 flow [2022-12-12 19:34:34,908 INFO L130 PetriNetUnfolder]: 2/142 cut-off events. [2022-12-12 19:34:34,908 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:34:34,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 2/142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-12-12 19:34:34,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 145 transitions, 314 flow [2022-12-12 19:34:34,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 132 transitions, 282 flow [2022-12-12 19:34:34,915 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:34:34,926 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 132 transitions, 282 flow [2022-12-12 19:34:34,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 132 transitions, 282 flow [2022-12-12 19:34:34,954 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-12-12 19:34:34,955 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:34:34,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-12-12 19:34:34,957 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 132 transitions, 282 flow [2022-12-12 19:34:34,957 INFO L226 LiptonReduction]: Number of co-enabled transitions 2184 [2022-12-12 19:34:37,991 INFO L241 LiptonReduction]: Total number of compositions: 89 [2022-12-12 19:34:38,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:34:38,017 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;@6b465839, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:34:38,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 19:34:38,032 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-12-12 19:34:38,032 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:34:38,032 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:38,033 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] [2022-12-12 19:34:38,033 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)] === [2022-12-12 19:34:38,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:38,037 INFO L85 PathProgramCache]: Analyzing trace with hash 748936163, now seen corresponding path program 1 times [2022-12-12 19:34:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:38,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813289841] [2022-12-12 19:34:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:38,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:38,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813289841] [2022-12-12 19:34:38,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813289841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:38,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:38,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:34:38,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406491691] [2022-12-12 19:34:38,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:38,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:34:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:34:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:34:38,778 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 43 [2022-12-12 19:34:38,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 104 flow. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:38,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:38,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 43 [2022-12-12 19:34:38,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:39,847 INFO L130 PetriNetUnfolder]: 6197/9388 cut-off events. [2022-12-12 19:34:39,848 INFO L131 PetriNetUnfolder]: For 477/477 co-relation queries the response was YES. [2022-12-12 19:34:39,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19181 conditions, 9388 events. 6197/9388 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 50152 event pairs, 2421 based on Foata normal form. 1/9371 useless extension candidates. Maximal degree in co-relation 16901. Up to 3168 conditions per place. [2022-12-12 19:34:39,891 INFO L137 encePairwiseOnDemand]: 35/43 looper letters, 158 selfloop transitions, 15 changer transitions 22/198 dead transitions. [2022-12-12 19:34:39,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 198 transitions, 858 flow [2022-12-12 19:34:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:34:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:34:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 229 transitions. [2022-12-12 19:34:39,902 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48414376321353064 [2022-12-12 19:34:39,905 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 10 predicate places. [2022-12-12 19:34:39,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 198 transitions, 858 flow [2022-12-12 19:34:39,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 176 transitions, 758 flow [2022-12-12 19:34:39,936 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 176 transitions, 758 flow [2022-12-12 19:34:39,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:39,937 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:39,937 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] [2022-12-12 19:34:39,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:34:39,937 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)] === [2022-12-12 19:34:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash 392671169, now seen corresponding path program 2 times [2022-12-12 19:34:39,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:39,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694040713] [2022-12-12 19:34:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:39,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:40,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:40,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694040713] [2022-12-12 19:34:40,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694040713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:40,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:40,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:34:40,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575989910] [2022-12-12 19:34:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:40,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:34:40,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:34:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:34:40,538 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:34:40,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 176 transitions, 758 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:40,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:40,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:34:40,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:41,602 INFO L130 PetriNetUnfolder]: 9565/14405 cut-off events. [2022-12-12 19:34:41,602 INFO L131 PetriNetUnfolder]: For 4199/4227 co-relation queries the response was YES. [2022-12-12 19:34:41,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40814 conditions, 14405 events. 9565/14405 cut-off events. For 4199/4227 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 79346 event pairs, 2348 based on Foata normal form. 170/14527 useless extension candidates. Maximal degree in co-relation 37780. Up to 9686 conditions per place. [2022-12-12 19:34:41,674 INFO L137 encePairwiseOnDemand]: 32/43 looper letters, 263 selfloop transitions, 26 changer transitions 0/319 dead transitions. [2022-12-12 19:34:41,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 319 transitions, 1947 flow [2022-12-12 19:34:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 19:34:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 19:34:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 183 transitions. [2022-12-12 19:34:41,676 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4728682170542636 [2022-12-12 19:34:41,676 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 16 predicate places. [2022-12-12 19:34:41,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 319 transitions, 1947 flow [2022-12-12 19:34:41,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 319 transitions, 1947 flow [2022-12-12 19:34:41,726 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 319 transitions, 1947 flow [2022-12-12 19:34:41,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:41,727 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:41,727 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] [2022-12-12 19:34:41,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:34:41,727 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)] === [2022-12-12 19:34:41,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1739364539, now seen corresponding path program 3 times [2022-12-12 19:34:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:41,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070649229] [2022-12-12 19:34:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:41,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:42,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:42,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:42,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070649229] [2022-12-12 19:34:42,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070649229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:42,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:42,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:34:42,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064093981] [2022-12-12 19:34:42,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:42,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:34:42,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:42,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:34:42,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:34:42,570 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:34:42,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 319 transitions, 1947 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:42,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:42,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:34:42,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:44,051 INFO L130 PetriNetUnfolder]: 14036/20879 cut-off events. [2022-12-12 19:34:44,051 INFO L131 PetriNetUnfolder]: For 17561/18251 co-relation queries the response was YES. [2022-12-12 19:34:44,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76193 conditions, 20879 events. 14036/20879 cut-off events. For 17561/18251 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 121723 event pairs, 1622 based on Foata normal form. 319/21085 useless extension candidates. Maximal degree in co-relation 70692. Up to 14943 conditions per place. [2022-12-12 19:34:44,141 INFO L137 encePairwiseOnDemand]: 31/43 looper letters, 405 selfloop transitions, 47 changer transitions 1/483 dead transitions. [2022-12-12 19:34:44,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 483 transitions, 3832 flow [2022-12-12 19:34:44,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 19:34:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 19:34:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2022-12-12 19:34:44,142 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5249169435215947 [2022-12-12 19:34:44,142 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2022-12-12 19:34:44,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 483 transitions, 3832 flow [2022-12-12 19:34:44,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 482 transitions, 3824 flow [2022-12-12 19:34:44,211 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 482 transitions, 3824 flow [2022-12-12 19:34:44,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:44,212 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:44,212 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] [2022-12-12 19:34:44,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:34:44,212 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)] === [2022-12-12 19:34:44,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:44,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2146347439, now seen corresponding path program 4 times [2022-12-12 19:34:44,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:44,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915120274] [2022-12-12 19:34:44,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:44,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:44,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:44,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915120274] [2022-12-12 19:34:44,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915120274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:44,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:44,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:34:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20347285] [2022-12-12 19:34:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:44,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:34:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:34:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:34:44,358 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2022-12-12 19:34:44,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 482 transitions, 3824 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:44,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:44,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2022-12-12 19:34:44,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:45,603 INFO L130 PetriNetUnfolder]: 10729/16117 cut-off events. [2022-12-12 19:34:45,603 INFO L131 PetriNetUnfolder]: For 29647/30631 co-relation queries the response was YES. [2022-12-12 19:34:45,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72253 conditions, 16117 events. 10729/16117 cut-off events. For 29647/30631 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 91837 event pairs, 1412 based on Foata normal form. 169/16035 useless extension candidates. Maximal degree in co-relation 71614. Up to 11988 conditions per place. [2022-12-12 19:34:45,695 INFO L137 encePairwiseOnDemand]: 38/43 looper letters, 433 selfloop transitions, 24 changer transitions 9/512 dead transitions. [2022-12-12 19:34:45,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 512 transitions, 5017 flow [2022-12-12 19:34:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 19:34:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 19:34:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2022-12-12 19:34:45,696 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5174418604651163 [2022-12-12 19:34:45,697 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 25 predicate places. [2022-12-12 19:34:45,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 512 transitions, 5017 flow [2022-12-12 19:34:45,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 503 transitions, 4927 flow [2022-12-12 19:34:45,761 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 503 transitions, 4927 flow [2022-12-12 19:34:45,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:45,761 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:45,761 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] [2022-12-12 19:34:45,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 19:34:45,761 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)] === [2022-12-12 19:34:45,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1649836019, now seen corresponding path program 5 times [2022-12-12 19:34:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:45,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600256596] [2022-12-12 19:34:45,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:45,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:45,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:45,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600256596] [2022-12-12 19:34:45,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600256596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:45,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:45,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:34:45,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735622830] [2022-12-12 19:34:45,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:45,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 19:34:45,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:45,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 19:34:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 19:34:45,931 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2022-12-12 19:34:45,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 503 transitions, 4927 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:45,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:45,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2022-12-12 19:34:45,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:47,112 INFO L130 PetriNetUnfolder]: 10117/15336 cut-off events. [2022-12-12 19:34:47,112 INFO L131 PetriNetUnfolder]: For 50334/51342 co-relation queries the response was YES. [2022-12-12 19:34:47,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80988 conditions, 15336 events. 10117/15336 cut-off events. For 50334/51342 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 88049 event pairs, 1424 based on Foata normal form. 178/15255 useless extension candidates. Maximal degree in co-relation 80238. Up to 11535 conditions per place. [2022-12-12 19:34:47,187 INFO L137 encePairwiseOnDemand]: 38/43 looper letters, 464 selfloop transitions, 39 changer transitions 0/549 dead transitions. [2022-12-12 19:34:47,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 549 transitions, 6402 flow [2022-12-12 19:34:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 19:34:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 19:34:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2022-12-12 19:34:47,188 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5174418604651163 [2022-12-12 19:34:47,189 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 28 predicate places. [2022-12-12 19:34:47,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 549 transitions, 6402 flow [2022-12-12 19:34:47,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 549 transitions, 6402 flow [2022-12-12 19:34:47,246 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 549 transitions, 6402 flow [2022-12-12 19:34:47,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:47,247 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:47,247 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] [2022-12-12 19:34:47,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 19:34:47,247 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)] === [2022-12-12 19:34:47,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:47,248 INFO L85 PathProgramCache]: Analyzing trace with hash -76580197, now seen corresponding path program 6 times [2022-12-12 19:34:47,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:47,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897382834] [2022-12-12 19:34:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:47,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:47,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:47,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897382834] [2022-12-12 19:34:47,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897382834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:47,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:47,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:34:47,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143904020] [2022-12-12 19:34:47,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:47,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:34:47,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:34:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:34:47,520 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 43 [2022-12-12 19:34:47,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 549 transitions, 6402 flow. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:47,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:47,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 43 [2022-12-12 19:34:47,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:49,560 INFO L130 PetriNetUnfolder]: 11540/17784 cut-off events. [2022-12-12 19:34:49,560 INFO L131 PetriNetUnfolder]: For 68955/70232 co-relation queries the response was YES. [2022-12-12 19:34:49,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111338 conditions, 17784 events. 11540/17784 cut-off events. For 68955/70232 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 106795 event pairs, 1036 based on Foata normal form. 5/17497 useless extension candidates. Maximal degree in co-relation 109089. Up to 13594 conditions per place. [2022-12-12 19:34:49,638 INFO L137 encePairwiseOnDemand]: 35/43 looper letters, 752 selfloop transitions, 28 changer transitions 106/902 dead transitions. [2022-12-12 19:34:49,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 902 transitions, 12359 flow [2022-12-12 19:34:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:34:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:34:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 245 transitions. [2022-12-12 19:34:49,640 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5179704016913319 [2022-12-12 19:34:49,642 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 38 predicate places. [2022-12-12 19:34:49,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 902 transitions, 12359 flow [2022-12-12 19:34:49,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 796 transitions, 10825 flow [2022-12-12 19:34:49,705 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 796 transitions, 10825 flow [2022-12-12 19:34:49,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:49,705 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:49,706 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] [2022-12-12 19:34:49,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 19:34:49,706 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)] === [2022-12-12 19:34:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1334453593, now seen corresponding path program 7 times [2022-12-12 19:34:49,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:49,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191124480] [2022-12-12 19:34:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:49,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:50,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:50,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:50,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191124480] [2022-12-12 19:34:50,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191124480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:50,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:50,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:34:50,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394697426] [2022-12-12 19:34:50,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:50,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:34:50,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:50,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:34:50,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:34:50,039 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:34:50,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 796 transitions, 10825 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:50,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:50,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:34:50,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:34:53,910 INFO L130 PetriNetUnfolder]: 22013/34053 cut-off events. [2022-12-12 19:34:53,910 INFO L131 PetriNetUnfolder]: For 185777/188808 co-relation queries the response was YES. [2022-12-12 19:34:53,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239477 conditions, 34053 events. 22013/34053 cut-off events. For 185777/188808 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 228411 event pairs, 1753 based on Foata normal form. 190/33891 useless extension candidates. Maximal degree in co-relation 235194. Up to 26742 conditions per place. [2022-12-12 19:34:54,182 INFO L137 encePairwiseOnDemand]: 33/43 looper letters, 1422 selfloop transitions, 199 changer transitions 51/1730 dead transitions. [2022-12-12 19:34:54,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 1730 transitions, 27355 flow [2022-12-12 19:34:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:34:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:34:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2022-12-12 19:34:54,184 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6104651162790697 [2022-12-12 19:34:54,184 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 43 predicate places. [2022-12-12 19:34:54,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 1730 transitions, 27355 flow [2022-12-12 19:34:54,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 1679 transitions, 26547 flow [2022-12-12 19:34:54,556 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 1679 transitions, 26547 flow [2022-12-12 19:34:54,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:54,556 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:34:54,556 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] [2022-12-12 19:34:54,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 19:34:54,557 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)] === [2022-12-12 19:34:54,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:34:54,557 INFO L85 PathProgramCache]: Analyzing trace with hash 783210823, now seen corresponding path program 8 times [2022-12-12 19:34:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:34:54,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75100567] [2022-12-12 19:34:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:34:54,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:34:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:34:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:34:54,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:34:54,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75100567] [2022-12-12 19:34:54,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75100567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:34:54,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:34:54,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:34:54,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074529069] [2022-12-12 19:34:54,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:34:54,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:34:54,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:34:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:34:54,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:34:54,962 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:34:54,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 1679 transitions, 26547 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:34:54,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:34:54,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:34:54,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:35:01,691 INFO L130 PetriNetUnfolder]: 23784/37750 cut-off events. [2022-12-12 19:35:01,691 INFO L131 PetriNetUnfolder]: For 270788/275659 co-relation queries the response was YES. [2022-12-12 19:35:01,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297177 conditions, 37750 events. 23784/37750 cut-off events. For 270788/275659 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 267845 event pairs, 1834 based on Foata normal form. 68/37468 useless extension candidates. Maximal degree in co-relation 288403. Up to 29858 conditions per place. [2022-12-12 19:35:01,961 INFO L137 encePairwiseOnDemand]: 30/43 looper letters, 2127 selfloop transitions, 268 changer transitions 57/2510 dead transitions. [2022-12-12 19:35:01,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 2510 transitions, 45065 flow [2022-12-12 19:35:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 19:35:01,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 19:35:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2022-12-12 19:35:01,963 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2022-12-12 19:35:01,963 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 54 predicate places. [2022-12-12 19:35:01,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 2510 transitions, 45065 flow [2022-12-12 19:35:02,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 2453 transitions, 44023 flow [2022-12-12 19:35:02,166 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 2453 transitions, 44023 flow [2022-12-12 19:35:02,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:02,167 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:35:02,167 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] [2022-12-12 19:35:02,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 19:35:02,167 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)] === [2022-12-12 19:35:02,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:35:02,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2045458291, now seen corresponding path program 9 times [2022-12-12 19:35:02,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:35:02,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051242284] [2022-12-12 19:35:02,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:35:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:35:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:35:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:35:02,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:35:02,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051242284] [2022-12-12 19:35:02,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051242284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:35:02,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:35:02,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 19:35:02,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459532184] [2022-12-12 19:35:02,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:35:02,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 19:35:02,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:35:02,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 19:35:02,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 19:35:02,234 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2022-12-12 19:35:02,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 2453 transitions, 44023 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:02,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:35:02,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2022-12-12 19:35:02,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:35:10,335 INFO L130 PetriNetUnfolder]: 22564/35925 cut-off events. [2022-12-12 19:35:10,335 INFO L131 PetriNetUnfolder]: For 356182/361332 co-relation queries the response was YES. [2022-12-12 19:35:10,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310986 conditions, 35925 events. 22564/35925 cut-off events. For 356182/361332 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 254211 event pairs, 2028 based on Foata normal form. 234/35899 useless extension candidates. Maximal degree in co-relation 301317. Up to 28287 conditions per place. [2022-12-12 19:35:10,615 INFO L137 encePairwiseOnDemand]: 39/43 looper letters, 2384 selfloop transitions, 96 changer transitions 15/2601 dead transitions. [2022-12-12 19:35:10,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 2601 transitions, 51733 flow [2022-12-12 19:35:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 19:35:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 19:35:10,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2022-12-12 19:35:10,617 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6201550387596899 [2022-12-12 19:35:10,618 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 51 predicate places. [2022-12-12 19:35:10,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 2601 transitions, 51733 flow [2022-12-12 19:35:10,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 2586 transitions, 51430 flow [2022-12-12 19:35:10,822 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 2586 transitions, 51430 flow [2022-12-12 19:35:10,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:10,823 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:35:10,823 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] [2022-12-12 19:35:10,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 19:35:10,823 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)] === [2022-12-12 19:35:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:35:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash -599609651, now seen corresponding path program 10 times [2022-12-12 19:35:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:35:10,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624560393] [2022-12-12 19:35:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:35:10,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:35:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:35:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:35:11,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:35:11,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624560393] [2022-12-12 19:35:11,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624560393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:35:11,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:35:11,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:35:11,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519766955] [2022-12-12 19:35:11,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:35:11,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:35:11,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:35:11,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:35:11,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:35:11,265 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:35:11,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 2586 transitions, 51430 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:11,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:35:11,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:35:11,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:35:23,312 INFO L130 PetriNetUnfolder]: 27927/44850 cut-off events. [2022-12-12 19:35:23,312 INFO L131 PetriNetUnfolder]: For 553170/562499 co-relation queries the response was YES. [2022-12-12 19:35:23,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428699 conditions, 44850 events. 27927/44850 cut-off events. For 553170/562499 co-relation queries the response was YES. Maximal size of possible extension queue 967. Compared 334685 event pairs, 2364 based on Foata normal form. 630/45091 useless extension candidates. Maximal degree in co-relation 410382. Up to 35961 conditions per place. [2022-12-12 19:35:23,671 INFO L137 encePairwiseOnDemand]: 30/43 looper letters, 3586 selfloop transitions, 488 changer transitions 27/4159 dead transitions. [2022-12-12 19:35:23,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 4159 transitions, 91451 flow [2022-12-12 19:35:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 19:35:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 19:35:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 239 transitions. [2022-12-12 19:35:23,672 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5558139534883721 [2022-12-12 19:35:23,673 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 60 predicate places. [2022-12-12 19:35:23,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 4159 transitions, 91451 flow [2022-12-12 19:35:23,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 4132 transitions, 90848 flow [2022-12-12 19:35:23,941 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 4132 transitions, 90848 flow [2022-12-12 19:35:23,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:23,941 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:35:23,941 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] [2022-12-12 19:35:23,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 19:35:23,941 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:35:23,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:35:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1857053901, now seen corresponding path program 11 times [2022-12-12 19:35:23,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:35:23,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177548913] [2022-12-12 19:35:23,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:35:23,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:35:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:35:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:35:24,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:35:24,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177548913] [2022-12-12 19:35:24,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177548913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:35:24,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:35:24,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:35:24,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625739942] [2022-12-12 19:35:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:35:24,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:35:24,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:35:24,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:35:24,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:35:24,298 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 43 [2022-12-12 19:35:24,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 4132 transitions, 90848 flow. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:24,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:35:24,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 43 [2022-12-12 19:35:24,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:35:48,638 INFO L130 PetriNetUnfolder]: 28221/45596 cut-off events. [2022-12-12 19:35:48,638 INFO L131 PetriNetUnfolder]: For 571828/581016 co-relation queries the response was YES. [2022-12-12 19:35:48,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479943 conditions, 45596 events. 28221/45596 cut-off events. For 571828/581016 co-relation queries the response was YES. Maximal size of possible extension queue 962. Compared 343639 event pairs, 2270 based on Foata normal form. 433/45640 useless extension candidates. Maximal degree in co-relation 458034. Up to 36570 conditions per place. [2022-12-12 19:35:48,973 INFO L137 encePairwiseOnDemand]: 35/43 looper letters, 4194 selfloop transitions, 31 changer transitions 246/4559 dead transitions. [2022-12-12 19:35:48,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 4559 transitions, 109415 flow [2022-12-12 19:35:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:35:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:35:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 241 transitions. [2022-12-12 19:35:48,975 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5095137420718816 [2022-12-12 19:35:48,975 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 70 predicate places. [2022-12-12 19:35:48,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 4559 transitions, 109415 flow [2022-12-12 19:35:49,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 4313 transitions, 103414 flow [2022-12-12 19:35:49,261 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 4313 transitions, 103414 flow [2022-12-12 19:35:49,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:49,261 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:35:49,261 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] [2022-12-12 19:35:49,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 19:35:49,261 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:35:49,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:35:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1102393095, now seen corresponding path program 12 times [2022-12-12 19:35:49,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:35:49,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320469282] [2022-12-12 19:35:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:35:49,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:35:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:35:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:35:49,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:35:49,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320469282] [2022-12-12 19:35:49,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320469282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:35:49,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:35:49,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:35:49,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525502117] [2022-12-12 19:35:49,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:35:49,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:35:49,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:35:49,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:35:49,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:35:49,600 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:35:49,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 4313 transitions, 103414 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:35:49,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:35:49,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:35:49,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:36:10,556 INFO L130 PetriNetUnfolder]: 26953/43872 cut-off events. [2022-12-12 19:36:10,556 INFO L131 PetriNetUnfolder]: For 658742/669882 co-relation queries the response was YES. [2022-12-12 19:36:10,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496419 conditions, 43872 events. 26953/43872 cut-off events. For 658742/669882 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 332197 event pairs, 2513 based on Foata normal form. 60/43543 useless extension candidates. Maximal degree in co-relation 473660. Up to 35340 conditions per place. [2022-12-12 19:36:10,925 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 4248 selfloop transitions, 133 changer transitions 36/4479 dead transitions. [2022-12-12 19:36:10,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 4479 transitions, 116010 flow [2022-12-12 19:36:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 19:36:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 19:36:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 153 transitions. [2022-12-12 19:36:10,927 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5083056478405316 [2022-12-12 19:36:10,927 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 74 predicate places. [2022-12-12 19:36:10,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 4479 transitions, 116010 flow [2022-12-12 19:36:11,361 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 4443 transitions, 115059 flow [2022-12-12 19:36:11,361 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 4443 transitions, 115059 flow [2022-12-12 19:36:11,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:36:11,361 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:36:11,361 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] [2022-12-12 19:36:11,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 19:36:11,362 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:36:11,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:36:11,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1620367211, now seen corresponding path program 13 times [2022-12-12 19:36:11,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:36:11,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739871676] [2022-12-12 19:36:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:36:11,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:36:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:36:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:36:11,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:36:11,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739871676] [2022-12-12 19:36:11,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739871676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:36:11,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:36:11,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-12 19:36:11,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486734840] [2022-12-12 19:36:11,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:36:11,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-12 19:36:11,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:36:11,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-12 19:36:11,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-12 19:36:11,758 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:36:11,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 4443 transitions, 115059 flow. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:36:11,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:36:11,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:36:11,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:36:55,040 INFO L130 PetriNetUnfolder]: 49704/80070 cut-off events. [2022-12-12 19:36:55,041 INFO L131 PetriNetUnfolder]: For 1484193/1500851 co-relation queries the response was YES. [2022-12-12 19:36:55,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 972322 conditions, 80070 events. 49704/80070 cut-off events. For 1484193/1500851 co-relation queries the response was YES. Maximal size of possible extension queue 1730. Compared 652588 event pairs, 4067 based on Foata normal form. 1297/81205 useless extension candidates. Maximal degree in co-relation 943353. Up to 65189 conditions per place. [2022-12-12 19:36:55,719 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 7651 selfloop transitions, 1316 changer transitions 237/9265 dead transitions. [2022-12-12 19:36:55,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 9265 transitions, 259668 flow [2022-12-12 19:36:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 19:36:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 19:36:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 438 transitions. [2022-12-12 19:36:55,721 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5361077111383109 [2022-12-12 19:36:55,722 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 92 predicate places. [2022-12-12 19:36:55,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 9265 transitions, 259668 flow [2022-12-12 19:36:56,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 9028 transitions, 253040 flow [2022-12-12 19:36:56,287 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 9028 transitions, 253040 flow [2022-12-12 19:36:56,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:36:56,287 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:36:56,287 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] [2022-12-12 19:36:56,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 19:36:56,288 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:36:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:36:56,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1263093509, now seen corresponding path program 14 times [2022-12-12 19:36:56,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:36:56,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785972348] [2022-12-12 19:36:56,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:36:56,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:36:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:36:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:36:56,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:36:56,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785972348] [2022-12-12 19:36:56,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785972348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:36:56,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:36:56,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:36:56,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548983759] [2022-12-12 19:36:56,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:36:56,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:36:56,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:36:56,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:36:56,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:36:56,751 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:36:56,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 9028 transitions, 253040 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:36:56,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:36:56,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:36:56,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:38:30,987 INFO L130 PetriNetUnfolder]: 49983/80584 cut-off events. [2022-12-12 19:38:30,987 INFO L131 PetriNetUnfolder]: For 1764823/1783570 co-relation queries the response was YES. [2022-12-12 19:38:31,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047051 conditions, 80584 events. 49983/80584 cut-off events. For 1764823/1783570 co-relation queries the response was YES. Maximal size of possible extension queue 1733. Compared 658578 event pairs, 4223 based on Foata normal form. 336/80755 useless extension candidates. Maximal degree in co-relation 1016683. Up to 65822 conditions per place. [2022-12-12 19:38:31,801 INFO L137 encePairwiseOnDemand]: 33/43 looper letters, 8978 selfloop transitions, 136 changer transitions 56/9231 dead transitions. [2022-12-12 19:38:31,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 9231 transitions, 276896 flow [2022-12-12 19:38:31,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 19:38:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 19:38:31,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 181 transitions. [2022-12-12 19:38:31,802 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46770025839793283 [2022-12-12 19:38:31,802 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 100 predicate places. [2022-12-12 19:38:31,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 9231 transitions, 276896 flow [2022-12-12 19:38:32,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 9175 transitions, 275222 flow [2022-12-12 19:38:32,392 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 9175 transitions, 275222 flow [2022-12-12 19:38:32,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:38:32,393 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:38:32,393 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] [2022-12-12 19:38:32,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-12 19:38:32,393 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:38:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:38:32,393 INFO L85 PathProgramCache]: Analyzing trace with hash -781771603, now seen corresponding path program 15 times [2022-12-12 19:38:32,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:38:32,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235179585] [2022-12-12 19:38:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:38:32,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:38:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:38:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:38:32,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:38:32,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235179585] [2022-12-12 19:38:32,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235179585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:38:32,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:38:32,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 19:38:32,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922824360] [2022-12-12 19:38:32,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:38:32,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:38:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:38:32,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:38:32,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:38:32,699 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:38:32,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 9175 transitions, 275222 flow. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:38:32,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:38:32,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:38:32,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:40:08,333 INFO L130 PetriNetUnfolder]: 50979/82209 cut-off events. [2022-12-12 19:40:08,333 INFO L131 PetriNetUnfolder]: For 2114048/2136038 co-relation queries the response was YES. [2022-12-12 19:40:08,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136961 conditions, 82209 events. 50979/82209 cut-off events. For 2114048/2136038 co-relation queries the response was YES. Maximal size of possible extension queue 1780. Compared 674017 event pairs, 4413 based on Foata normal form. 350/82413 useless extension candidates. Maximal degree in co-relation 1104674. Up to 67191 conditions per place. [2022-12-12 19:40:09,107 INFO L137 encePairwiseOnDemand]: 32/43 looper letters, 8973 selfloop transitions, 236 changer transitions 48/9318 dead transitions. [2022-12-12 19:40:09,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 9318 transitions, 298035 flow [2022-12-12 19:40:09,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 19:40:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 19:40:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 200 transitions. [2022-12-12 19:40:09,109 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5167958656330749 [2022-12-12 19:40:09,109 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 108 predicate places. [2022-12-12 19:40:09,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 9318 transitions, 298035 flow [2022-12-12 19:40:09,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 9270 transitions, 296541 flow [2022-12-12 19:40:09,710 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 9270 transitions, 296541 flow [2022-12-12 19:40:09,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:40:09,710 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:40:09,710 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] [2022-12-12 19:40:09,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-12 19:40:09,710 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:40:09,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:40:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1977177207, now seen corresponding path program 16 times [2022-12-12 19:40:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:40:09,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586887112] [2022-12-12 19:40:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:40:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:40:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:40:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:40:10,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:40:10,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586887112] [2022-12-12 19:40:10,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586887112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:40:10,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:40:10,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:40:10,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223251013] [2022-12-12 19:40:10,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:40:10,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:40:10,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:40:10,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:40:10,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:40:10,050 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:40:10,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 9270 transitions, 296541 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:40:10,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:40:10,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:40:10,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:42:16,371 INFO L130 PetriNetUnfolder]: 54821/88218 cut-off events. [2022-12-12 19:42:16,371 INFO L131 PetriNetUnfolder]: For 2527034/2550928 co-relation queries the response was YES. [2022-12-12 19:42:16,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1303170 conditions, 88218 events. 54821/88218 cut-off events. For 2527034/2550928 co-relation queries the response was YES. Maximal size of possible extension queue 1963. Compared 730641 event pairs, 5393 based on Foata normal form. 2362/90493 useless extension candidates. Maximal degree in co-relation 1270328. Up to 72738 conditions per place. [2022-12-12 19:42:17,114 INFO L137 encePairwiseOnDemand]: 29/43 looper letters, 7652 selfloop transitions, 899 changer transitions 406/9018 dead transitions. [2022-12-12 19:42:17,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 9018 transitions, 305584 flow [2022-12-12 19:42:17,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:42:17,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:42:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 274 transitions. [2022-12-12 19:42:17,115 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5792811839323467 [2022-12-12 19:42:17,116 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 118 predicate places. [2022-12-12 19:42:17,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 9018 transitions, 305584 flow [2022-12-12 19:42:17,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 8612 transitions, 291912 flow [2022-12-12 19:42:17,778 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 8612 transitions, 291912 flow [2022-12-12 19:42:17,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:42:17,778 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:42:17,778 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] [2022-12-12 19:42:17,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-12 19:42:17,779 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:42:17,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:42:17,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1282877105, now seen corresponding path program 17 times [2022-12-12 19:42:17,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:42:17,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039641012] [2022-12-12 19:42:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:42:17,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:42:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:42:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:42:18,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:42:18,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039641012] [2022-12-12 19:42:18,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039641012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:42:18,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:42:18,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:42:18,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069607811] [2022-12-12 19:42:18,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:42:18,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:42:18,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:42:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:42:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:42:18,362 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:42:18,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 8612 transitions, 291912 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:42:18,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:42:18,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:42:18,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:44:13,540 INFO L130 PetriNetUnfolder]: 51422/83711 cut-off events. [2022-12-12 19:44:13,540 INFO L131 PetriNetUnfolder]: For 2626404/2646076 co-relation queries the response was YES. [2022-12-12 19:44:13,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307195 conditions, 83711 events. 51422/83711 cut-off events. For 2626404/2646076 co-relation queries the response was YES. Maximal size of possible extension queue 1897. Compared 701162 event pairs, 5517 based on Foata normal form. 704/84328 useless extension candidates. Maximal degree in co-relation 1274682. Up to 69496 conditions per place. [2022-12-12 19:44:14,285 INFO L137 encePairwiseOnDemand]: 30/43 looper letters, 8398 selfloop transitions, 308 changer transitions 7/8774 dead transitions. [2022-12-12 19:44:14,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 8774 transitions, 314741 flow [2022-12-12 19:44:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:44:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:44:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 235 transitions. [2022-12-12 19:44:14,287 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49682875264270615 [2022-12-12 19:44:14,293 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 128 predicate places. [2022-12-12 19:44:14,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 8774 transitions, 314741 flow [2022-12-12 19:44:14,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 8767 transitions, 314489 flow [2022-12-12 19:44:14,970 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 8767 transitions, 314489 flow [2022-12-12 19:44:14,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:44:14,970 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:44:14,970 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] [2022-12-12 19:44:14,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-12 19:44:14,970 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:44:14,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:44:14,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1558386569, now seen corresponding path program 18 times [2022-12-12 19:44:14,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:44:14,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278783899] [2022-12-12 19:44:14,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:44:14,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:44:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:44:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:44:15,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:44:15,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278783899] [2022-12-12 19:44:15,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278783899] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:44:15,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:44:15,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:44:15,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519065557] [2022-12-12 19:44:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:44:15,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:44:15,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:44:15,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:44:15,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:44:15,268 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:44:15,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 8767 transitions, 314489 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:44:15,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:44:15,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:44:15,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:46:14,970 INFO L130 PetriNetUnfolder]: 51685/84155 cut-off events. [2022-12-12 19:46:14,973 INFO L131 PetriNetUnfolder]: For 2990136/3013511 co-relation queries the response was YES. [2022-12-12 19:46:15,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1385017 conditions, 84155 events. 51685/84155 cut-off events. For 2990136/3013511 co-relation queries the response was YES. Maximal size of possible extension queue 1913. Compared 705570 event pairs, 5577 based on Foata normal form. 384/84452 useless extension candidates. Maximal degree in co-relation 1350782. Up to 69881 conditions per place. [2022-12-12 19:46:15,786 INFO L137 encePairwiseOnDemand]: 29/43 looper letters, 8081 selfloop transitions, 602 changer transitions 83/8827 dead transitions. [2022-12-12 19:46:15,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 8827 transitions, 334172 flow [2022-12-12 19:46:15,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 19:46:15,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 19:46:15,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 229 transitions. [2022-12-12 19:46:15,787 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4437984496124031 [2022-12-12 19:46:15,788 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 139 predicate places. [2022-12-12 19:46:15,788 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 8827 transitions, 334172 flow [2022-12-12 19:46:16,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 8744 transitions, 331045 flow [2022-12-12 19:46:16,526 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 8744 transitions, 331045 flow [2022-12-12 19:46:16,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:46:16,526 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:46:16,526 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] [2022-12-12 19:46:16,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-12 19:46:16,526 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:46:16,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:46:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1385675475, now seen corresponding path program 19 times [2022-12-12 19:46:16,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:46:16,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707065722] [2022-12-12 19:46:16,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:46:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:46:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:46:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:46:16,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:46:16,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707065722] [2022-12-12 19:46:16,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707065722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:46:16,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:46:16,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-12 19:46:16,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241594735] [2022-12-12 19:46:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:46:16,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-12 19:46:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:46:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-12 19:46:16,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-12 19:46:16,871 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-12 19:46:16,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 8744 transitions, 331045 flow. Second operand has 13 states, 13 states have (on average 8.846153846153847) internal successors, (115), 13 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:46:16,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:46:16,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-12 19:46:16,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:28,289 INFO L130 PetriNetUnfolder]: 55954/91820 cut-off events. [2022-12-12 19:48:28,289 INFO L131 PetriNetUnfolder]: For 3702246/3729812 co-relation queries the response was YES. [2022-12-12 19:48:28,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587404 conditions, 91820 events. 55954/91820 cut-off events. For 3702246/3729812 co-relation queries the response was YES. Maximal size of possible extension queue 2115. Compared 786898 event pairs, 6184 based on Foata normal form. 517/92246 useless extension candidates. Maximal degree in co-relation 1550832. Up to 76190 conditions per place. [2022-12-12 19:48:29,291 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 8906 selfloop transitions, 1023 changer transitions 114/10104 dead transitions. [2022-12-12 19:48:29,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 10104 transitions, 402868 flow [2022-12-12 19:48:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 19:48:29,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 19:48:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 413 transitions. [2022-12-12 19:48:29,300 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5335917312661499 [2022-12-12 19:48:29,301 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 151 predicate places. [2022-12-12 19:48:29,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 10104 transitions, 402868 flow [2022-12-12 19:48:30,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 9990 transitions, 398278 flow [2022-12-12 19:48:30,207 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 9990 transitions, 398278 flow [2022-12-12 19:48:30,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.846153846153847) internal successors, (115), 13 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:30,208 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:30,208 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] [2022-12-12 19:48:30,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-12 19:48:30,208 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:48:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1410054761, now seen corresponding path program 20 times [2022-12-12 19:48:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:30,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357657891] [2022-12-12 19:48:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:30,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-12-12 19:48:30,662 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-12 19:48:30,664 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 19:48:30,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-12 19:48:30,664 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 44 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. [2022-12-12 19:48:30,666 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 19:48:30,666 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 19:48:30,666 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 19:48:30,666 INFO L445 BasicCegarLoop]: Path program histogram: [20] [2022-12-12 19:48:30,670 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:48:30,670 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:48:30,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:48:30 BasicIcfg [2022-12-12 19:48:30,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:48:30,674 INFO L158 Benchmark]: Toolchain (without parser) took 836839.39ms. Allocated memory was 243.3MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 219.0MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2022-12-12 19:48:30,674 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 243.3MB. Free memory was 219.7MB in the beginning and 219.6MB in the end (delta: 157.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:48:30,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.92ms. Allocated memory is still 243.3MB. Free memory was 219.0MB in the beginning and 199.0MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 19:48:30,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.63ms. Allocated memory is still 243.3MB. Free memory was 199.0MB in the beginning and 197.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:48:30,675 INFO L158 Benchmark]: Boogie Preprocessor took 26.96ms. Allocated memory is still 243.3MB. Free memory was 197.0MB in the beginning and 194.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:48:30,675 INFO L158 Benchmark]: RCFGBuilder took 601.31ms. Allocated memory is still 243.3MB. Free memory was 194.9MB in the beginning and 166.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-12 19:48:30,675 INFO L158 Benchmark]: TraceAbstraction took 835900.64ms. Allocated memory was 243.3MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 165.5MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2022-12-12 19:48:30,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 243.3MB. Free memory was 219.7MB in the beginning and 219.6MB in the end (delta: 157.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.92ms. Allocated memory is still 243.3MB. Free memory was 219.0MB in the beginning and 199.0MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.63ms. Allocated memory is still 243.3MB. Free memory was 199.0MB in the beginning and 197.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.96ms. Allocated memory is still 243.3MB. Free memory was 197.0MB in the beginning and 194.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 601.31ms. Allocated memory is still 243.3MB. Free memory was 194.9MB in the beginning and 166.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 835900.64ms. Allocated memory was 243.3MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 165.5MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 140 PlacesBefore, 53 PlacesAfterwards, 132 TransitionsBefore, 43 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 63 TrivialYvCompositions, 24 ConcurrentYvCompositions, 2 ChoiceCompositions, 89 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1450, independent: 1336, independent conditional: 1336, independent unconditional: 0, dependent: 114, dependent conditional: 114, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1450, independent: 1336, independent conditional: 0, independent unconditional: 1336, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1450, independent: 1336, independent conditional: 0, independent unconditional: 1336, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1450, independent: 1336, independent conditional: 0, independent unconditional: 1336, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1106, independent: 1035, independent conditional: 0, independent unconditional: 1035, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1106, independent: 1009, independent conditional: 0, independent unconditional: 1009, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1450, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 1106, unknown conditional: 0, unknown unconditional: 1106] , Statistics on independence cache: Total cache size (in pairs): 1326, Positive cache size: 1255, Positive conditional cache size: 0, Positive unconditional cache size: 1255, Negative cache size: 71, Negative conditional cache size: 0, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 196]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 44 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 44 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 44 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - TimeoutResultAtElement [Line: 188]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 44 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 192 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 6.8s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 835.8s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.0s, AutomataDifference: 817.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2266 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2266 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 417 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11435 IncrementalHoareTripleChecker+Invalid, 11852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 417 mSolverCounterUnsat, 29 mSDtfsCounter, 11435 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 43 SyntacticMatches, 6 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=398278occurred in iteration=19, InterpolantAutomatonStates: 186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 42877 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 798 ConstructedInterpolants, 0 QuantifiedInterpolants, 4244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown