/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/03_incdec.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:28:33,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:28:33,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:28:33,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:28:33,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:28:33,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:28:33,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:28:33,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:28:33,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:28:33,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:28:33,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:28:33,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:28:33,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:28:33,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:28:33,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:28:33,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:28:33,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:28:33,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:28:33,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:28:33,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:28:33,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:28:33,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:28:33,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:28:33,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:28:33,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 06:28:33,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 06:28:33,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 06:28:33,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 06:28:33,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 06:28:33,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 06:28:33,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 06:28:33,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 06:28:33,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 06:28:33,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 06:28:33,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 06:28:33,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 06:28:33,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 06:28:33,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 06:28:33,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:28:33,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:28:33,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:28:33,424 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-VariableLbe.epf [2023-01-28 06:28:33,443 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:28:33,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:28:33,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:28:33,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:28:33,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:28:33,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:28:33,445 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:28:33,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:28:33,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:28:33,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:28:33,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:28:33,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:28:33,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:28:33,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:28:33,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:28:33,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:28:33,448 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:28:33,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:28:33,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:28:33,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:28:33,610 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:28:33,610 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:28:33,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec.i [2023-01-28 06:28:34,526 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:28:34,713 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:28:34,713 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i [2023-01-28 06:28:34,720 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85898dc90/2b54ea08475f40e38072530412f34369/FLAG06b58d0c5 [2023-01-28 06:28:34,729 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85898dc90/2b54ea08475f40e38072530412f34369 [2023-01-28 06:28:34,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:28:34,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:28:34,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:28:34,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:28:34,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:28:34,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:34,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61820e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34, skipping insertion in model container [2023-01-28 06:28:34,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:34,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:28:34,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:28:34,917 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30534,30547] [2023-01-28 06:28:34,921 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30928,30941] [2023-01-28 06:28:34,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:28:34,931 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:28:34,953 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30534,30547] [2023-01-28 06:28:34,954 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30928,30941] [2023-01-28 06:28:34,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:28:34,979 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:28:34,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34 WrapperNode [2023-01-28 06:28:34,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:28:34,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:28:34,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:28:34,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:28:34,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,026 INFO L138 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 134 [2023-01-28 06:28:35,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:28:35,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:28:35,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:28:35,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:28:35,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:28:35,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:28:35,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:28:35,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:28:35,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (1/1) ... [2023-01-28 06:28:35,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:28:35,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:28:35,075 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) [2023-01-28 06:28:35,093 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 [2023-01-28 06:28:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 06:28:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 06:28:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:28:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:28:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:28:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:28:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:28:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:28:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:28:35,118 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 06:28:35,255 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:28:35,256 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:28:35,395 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:28:35,491 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:28:35,491 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-01-28 06:28:35,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:28:35 BoogieIcfgContainer [2023-01-28 06:28:35,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:28:35,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:28:35,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:28:35,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:28:35,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:28:34" (1/3) ... [2023-01-28 06:28:35,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5565631a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:28:35, skipping insertion in model container [2023-01-28 06:28:35,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:28:34" (2/3) ... [2023-01-28 06:28:35,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5565631a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:28:35, skipping insertion in model container [2023-01-28 06:28:35,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:28:35" (3/3) ... [2023-01-28 06:28:35,501 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2023-01-28 06:28:35,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:28:35,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 06:28:35,514 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:28:35,568 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 06:28:35,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:35,623 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2023-01-28 06:28:35,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:35,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2023-01-28 06:28:35,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:35,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:35,632 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:28:35,648 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:35,650 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:35,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:35,689 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2023-01-28 06:28:35,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:35,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2023-01-28 06:28:35,691 INFO L119 LiptonReduction]: Number of co-enabled transitions 1378 [2023-01-28 06:28:39,468 INFO L134 LiptonReduction]: Checked pairs total: 1359 [2023-01-28 06:28:39,469 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-01-28 06:28:39,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:28:39,483 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:28:39,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 06:28:39,485 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-01-28 06:28:39,485 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:39,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:39,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 06:28:39,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-28 06:28:39,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash 17159279, now seen corresponding path program 1 times [2023-01-28 06:28:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:39,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217105285] [2023-01-28 06:28:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:39,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:28:39,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:39,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217105285] [2023-01-28 06:28:39,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217105285] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:39,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:39,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 06:28:39,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313272753] [2023-01-28 06:28:39,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:39,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 06:28:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 06:28:39,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 06:28:39,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 186 [2023-01-28 06:28:39,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 23 flow. Second operand has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:28:39,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:39,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 186 [2023-01-28 06:28:39,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:39,628 INFO L130 PetriNetUnfolder]: 2/11 cut-off events. [2023-01-28 06:28:39,628 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:39,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-01-28 06:28:39,629 INFO L137 encePairwiseOnDemand]: 183/186 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2023-01-28 06:28:39,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-01-28 06:28:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 06:28:39,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 06:28:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 136 transitions. [2023-01-28 06:28:39,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3655913978494624 [2023-01-28 06:28:39,637 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 136 transitions. [2023-01-28 06:28:39,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 136 transitions. [2023-01-28 06:28:39,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:39,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 136 transitions. [2023-01-28 06:28:39,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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) [2023-01-28 06:28:39,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2023-01-28 06:28:39,644 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2023-01-28 06:28:39,645 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 23 flow. Second operand 2 states and 136 transitions. [2023-01-28 06:28:39,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-01-28 06:28:39,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:28:39,647 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2023-01-28 06:28:39,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2023-01-28 06:28:39,651 INFO L281 CegarLoopForPetriNet]: 12 programPoint places, -2 predicate places. [2023-01-28 06:28:39,651 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2023-01-28 06:28:39,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:28:39,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 06:28:39,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-01-28 06:28:39,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-01-28 06:28:39,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-01-28 06:28:39,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:28:39,653 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 06:28:39,655 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2023-01-28 06:28:39,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:39,666 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2023-01-28 06:28:39,667 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:39,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2023-01-28 06:28:39,667 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:39,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:39,668 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:28:39,668 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:39,668 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:39,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 81 transitions, 167 flow [2023-01-28 06:28:39,675 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2023-01-28 06:28:39,675 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:39,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2023-01-28 06:28:39,677 INFO L119 LiptonReduction]: Number of co-enabled transitions 1378 [2023-01-28 06:28:42,884 INFO L134 LiptonReduction]: Checked pairs total: 1379 [2023-01-28 06:28:42,884 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-01-28 06:28:42,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 06:28:42,886 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:28:42,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 06:28:42,888 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-01-28 06:28:42,888 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:28:42,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:42,889 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 06:28:42,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:28:42,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:42,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1648966836, now seen corresponding path program 1 times [2023-01-28 06:28:42,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:42,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076684653] [2023-01-28 06:28:42,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:42,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:28:42,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 06:28:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:28:42,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 06:28:42,936 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 06:28:42,936 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 06:28:42,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 06:28:42,936 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 06:28:42,937 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-01-28 06:28:42,937 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 06:28:42,937 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 06:28:42,962 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 06:28:42,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:42,995 INFO L130 PetriNetUnfolder]: 13/157 cut-off events. [2023-01-28 06:28:42,995 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:28:42,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 157 events. 13/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 474 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2023-01-28 06:28:42,999 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:43,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:43,001 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:28:43,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:43,001 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:43,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:43,021 INFO L130 PetriNetUnfolder]: 13/157 cut-off events. [2023-01-28 06:28:43,021 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:28:43,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 157 events. 13/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 474 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2023-01-28 06:28:43,029 INFO L119 LiptonReduction]: Number of co-enabled transitions 8480 [2023-01-28 06:28:44,883 INFO L134 LiptonReduction]: Checked pairs total: 31217 [2023-01-28 06:28:44,884 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-01-28 06:28:44,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:28:44,886 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:28:44,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-28 06:28:44,889 INFO L130 PetriNetUnfolder]: 3/43 cut-off events. [2023-01-28 06:28:44,889 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:28:44,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:44,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:44,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:44,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1911115954, now seen corresponding path program 1 times [2023-01-28 06:28:44,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913030931] [2023-01-28 06:28:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:44,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:28:45,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:45,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913030931] [2023-01-28 06:28:45,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913030931] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:45,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:45,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:28:45,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053353777] [2023-01-28 06:28:45,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:45,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:28:45,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:45,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:28:45,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:28:45,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 240 [2023-01-28 06:28:45,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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) [2023-01-28 06:28:45,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:45,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 240 [2023-01-28 06:28:45,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:45,362 INFO L130 PetriNetUnfolder]: 915/1641 cut-off events. [2023-01-28 06:28:45,363 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2023-01-28 06:28:45,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 1641 events. 915/1641 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10189 event pairs, 261 based on Foata normal form. 12/1413 useless extension candidates. Maximal degree in co-relation 2360. Up to 497 conditions per place. [2023-01-28 06:28:45,368 INFO L137 encePairwiseOnDemand]: 224/240 looper letters, 76 selfloop transitions, 10 changer transitions 9/102 dead transitions. [2023-01-28 06:28:45,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 102 transitions, 416 flow [2023-01-28 06:28:45,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 06:28:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 06:28:45,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 563 transitions. [2023-01-28 06:28:45,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3909722222222222 [2023-01-28 06:28:45,371 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 563 transitions. [2023-01-28 06:28:45,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 563 transitions. [2023-01-28 06:28:45,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:45,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 563 transitions. [2023-01-28 06:28:45,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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) [2023-01-28 06:28:45,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-01-28 06:28:45,379 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-01-28 06:28:45,379 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 136 flow. Second operand 6 states and 563 transitions. [2023-01-28 06:28:45,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 102 transitions, 416 flow [2023-01-28 06:28:45,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 102 transitions, 414 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-01-28 06:28:45,382 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 176 flow [2023-01-28 06:28:45,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2023-01-28 06:28:45,382 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2023-01-28 06:28:45,382 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 176 flow [2023-01-28 06:28:45,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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) [2023-01-28 06:28:45,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:45,383 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:45,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 06:28:45,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:45,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:45,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1281007343, now seen corresponding path program 1 times [2023-01-28 06:28:45,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:45,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705859337] [2023-01-28 06:28:45,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:45,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:45,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:45,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705859337] [2023-01-28 06:28:45,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705859337] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:45,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:28:45,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174123319] [2023-01-28 06:28:45,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:45,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:28:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:28:45,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:28:45,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 240 [2023-01-28 06:28:45,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2023-01-28 06:28:45,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:45,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 240 [2023-01-28 06:28:45,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:45,657 INFO L130 PetriNetUnfolder]: 875/1620 cut-off events. [2023-01-28 06:28:45,657 INFO L131 PetriNetUnfolder]: For 368/368 co-relation queries the response was YES. [2023-01-28 06:28:45,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3526 conditions, 1620 events. 875/1620 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 10349 event pairs, 243 based on Foata normal form. 10/1510 useless extension candidates. Maximal degree in co-relation 2006. Up to 519 conditions per place. [2023-01-28 06:28:45,705 INFO L137 encePairwiseOnDemand]: 232/240 looper letters, 69 selfloop transitions, 12 changer transitions 9/97 dead transitions. [2023-01-28 06:28:45,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 97 transitions, 457 flow [2023-01-28 06:28:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 06:28:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 06:28:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-01-28 06:28:45,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375 [2023-01-28 06:28:45,719 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-01-28 06:28:45,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-01-28 06:28:45,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:45,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-01-28 06:28:45,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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) [2023-01-28 06:28:45,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-01-28 06:28:45,726 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-01-28 06:28:45,726 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 176 flow. Second operand 6 states and 540 transitions. [2023-01-28 06:28:45,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 97 transitions, 457 flow [2023-01-28 06:28:45,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 97 transitions, 457 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:28:45,732 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 225 flow [2023-01-28 06:28:45,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2023-01-28 06:28:45,734 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2023-01-28 06:28:45,735 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 225 flow [2023-01-28 06:28:45,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2023-01-28 06:28:45,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:45,736 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:45,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 06:28:45,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:45,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1116333369, now seen corresponding path program 1 times [2023-01-28 06:28:45,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:45,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76446962] [2023-01-28 06:28:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:45,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:45,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76446962] [2023-01-28 06:28:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76446962] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:45,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:45,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:28:45,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544657215] [2023-01-28 06:28:45,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:45,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:28:45,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:45,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:28:45,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:28:45,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 240 [2023-01-28 06:28:45,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-01-28 06:28:45,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:45,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 240 [2023-01-28 06:28:45,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:45,963 INFO L130 PetriNetUnfolder]: 518/1070 cut-off events. [2023-01-28 06:28:45,964 INFO L131 PetriNetUnfolder]: For 266/284 co-relation queries the response was YES. [2023-01-28 06:28:45,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2297 conditions, 1070 events. 518/1070 cut-off events. For 266/284 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6989 event pairs, 368 based on Foata normal form. 20/1038 useless extension candidates. Maximal degree in co-relation 1447. Up to 711 conditions per place. [2023-01-28 06:28:45,971 INFO L137 encePairwiseOnDemand]: 236/240 looper letters, 35 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2023-01-28 06:28:45,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 321 flow [2023-01-28 06:28:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:28:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:28:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2023-01-28 06:28:45,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45416666666666666 [2023-01-28 06:28:45,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2023-01-28 06:28:45,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2023-01-28 06:28:45,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:45,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2023-01-28 06:28:45,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-01-28 06:28:45,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-01-28 06:28:45,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-01-28 06:28:45,975 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 225 flow. Second operand 3 states and 327 transitions. [2023-01-28 06:28:45,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 321 flow [2023-01-28 06:28:45,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 67 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:28:45,979 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 231 flow [2023-01-28 06:28:45,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2023-01-28 06:28:45,981 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2023-01-28 06:28:45,981 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 231 flow [2023-01-28 06:28:45,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-01-28 06:28:45,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:45,982 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 06:28:45,983 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:45,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash -708953918, now seen corresponding path program 1 times [2023-01-28 06:28:45,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:45,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554392395] [2023-01-28 06:28:45,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:45,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:46,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:46,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554392395] [2023-01-28 06:28:46,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554392395] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:46,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:46,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:28:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547544857] [2023-01-28 06:28:46,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:46,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:28:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:28:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:28:46,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 240 [2023-01-28 06:28:46,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-01-28 06:28:46,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:46,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 240 [2023-01-28 06:28:46,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:46,158 INFO L130 PetriNetUnfolder]: 453/960 cut-off events. [2023-01-28 06:28:46,158 INFO L131 PetriNetUnfolder]: For 373/373 co-relation queries the response was YES. [2023-01-28 06:28:46,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2156 conditions, 960 events. 453/960 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6235 event pairs, 226 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 1874. Up to 781 conditions per place. [2023-01-28 06:28:46,163 INFO L137 encePairwiseOnDemand]: 235/240 looper letters, 23 selfloop transitions, 2 changer transitions 18/61 dead transitions. [2023-01-28 06:28:46,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 322 flow [2023-01-28 06:28:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:28:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:28:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2023-01-28 06:28:46,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45 [2023-01-28 06:28:46,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2023-01-28 06:28:46,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2023-01-28 06:28:46,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:46,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2023-01-28 06:28:46,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-01-28 06:28:46,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-01-28 06:28:46,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-01-28 06:28:46,168 INFO L175 Difference]: Start difference. First operand has 70 places, 56 transitions, 231 flow. Second operand 3 states and 324 transitions. [2023-01-28 06:28:46,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 322 flow [2023-01-28 06:28:46,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:28:46,171 INFO L231 Difference]: Finished difference. Result has 69 places, 39 transitions, 187 flow [2023-01-28 06:28:46,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=69, PETRI_TRANSITIONS=39} [2023-01-28 06:28:46,172 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2023-01-28 06:28:46,172 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 39 transitions, 187 flow [2023-01-28 06:28:46,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-01-28 06:28:46,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:46,174 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:46,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 06:28:46,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:46,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:46,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1363126712, now seen corresponding path program 1 times [2023-01-28 06:28:46,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:46,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181315391] [2023-01-28 06:28:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:46,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:46,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181315391] [2023-01-28 06:28:46,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181315391] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:46,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:46,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:28:46,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389567196] [2023-01-28 06:28:46,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:46,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 06:28:46,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:46,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 06:28:46,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 06:28:46,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 240 [2023-01-28 06:28:46,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 39 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2023-01-28 06:28:46,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:46,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 240 [2023-01-28 06:28:46,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:46,474 INFO L130 PetriNetUnfolder]: 728/1385 cut-off events. [2023-01-28 06:28:46,475 INFO L131 PetriNetUnfolder]: For 1140/1160 co-relation queries the response was YES. [2023-01-28 06:28:46,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3445 conditions, 1385 events. 728/1385 cut-off events. For 1140/1160 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8956 event pairs, 223 based on Foata normal form. 40/1421 useless extension candidates. Maximal degree in co-relation 3306. Up to 737 conditions per place. [2023-01-28 06:28:46,480 INFO L137 encePairwiseOnDemand]: 231/240 looper letters, 51 selfloop transitions, 15 changer transitions 2/75 dead transitions. [2023-01-28 06:28:46,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 449 flow [2023-01-28 06:28:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:28:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:28:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 571 transitions. [2023-01-28 06:28:46,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3398809523809524 [2023-01-28 06:28:46,483 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 571 transitions. [2023-01-28 06:28:46,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 571 transitions. [2023-01-28 06:28:46,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:46,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 571 transitions. [2023-01-28 06:28:46,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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) [2023-01-28 06:28:46,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 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) [2023-01-28 06:28:46,486 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 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) [2023-01-28 06:28:46,486 INFO L175 Difference]: Start difference. First operand has 69 places, 39 transitions, 187 flow. Second operand 7 states and 571 transitions. [2023-01-28 06:28:46,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 449 flow [2023-01-28 06:28:46,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 75 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:28:46,489 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 267 flow [2023-01-28 06:28:46,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=267, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2023-01-28 06:28:46,490 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2023-01-28 06:28:46,490 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 267 flow [2023-01-28 06:28:46,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2023-01-28 06:28:46,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:46,491 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:46,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 06:28:46,491 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:46,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:46,491 INFO L85 PathProgramCache]: Analyzing trace with hash 584427890, now seen corresponding path program 2 times [2023-01-28 06:28:46,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:46,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358470391] [2023-01-28 06:28:46,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:46,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:46,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:46,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358470391] [2023-01-28 06:28:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358470391] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:46,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:46,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:28:46,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628097292] [2023-01-28 06:28:46,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:46,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 06:28:46,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 06:28:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 06:28:46,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 240 [2023-01-28 06:28:46,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2023-01-28 06:28:46,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:46,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 240 [2023-01-28 06:28:46,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:46,787 INFO L130 PetriNetUnfolder]: 821/1597 cut-off events. [2023-01-28 06:28:46,787 INFO L131 PetriNetUnfolder]: For 2192/2212 co-relation queries the response was YES. [2023-01-28 06:28:46,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4221 conditions, 1597 events. 821/1597 cut-off events. For 2192/2212 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10991 event pairs, 335 based on Foata normal form. 36/1630 useless extension candidates. Maximal degree in co-relation 3858. Up to 765 conditions per place. [2023-01-28 06:28:46,813 INFO L137 encePairwiseOnDemand]: 231/240 looper letters, 52 selfloop transitions, 18 changer transitions 4/81 dead transitions. [2023-01-28 06:28:46,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 556 flow [2023-01-28 06:28:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:28:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:28:46,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 571 transitions. [2023-01-28 06:28:46,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3398809523809524 [2023-01-28 06:28:46,815 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 571 transitions. [2023-01-28 06:28:46,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 571 transitions. [2023-01-28 06:28:46,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:46,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 571 transitions. [2023-01-28 06:28:46,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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) [2023-01-28 06:28:46,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 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) [2023-01-28 06:28:46,818 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 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) [2023-01-28 06:28:46,818 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 267 flow. Second operand 7 states and 571 transitions. [2023-01-28 06:28:46,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 556 flow [2023-01-28 06:28:46,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 81 transitions, 520 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-01-28 06:28:46,824 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 349 flow [2023-01-28 06:28:46,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=349, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2023-01-28 06:28:46,825 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2023-01-28 06:28:46,825 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 349 flow [2023-01-28 06:28:46,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2023-01-28 06:28:46,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:46,826 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:46,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 06:28:46,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:46,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1192496078, now seen corresponding path program 3 times [2023-01-28 06:28:46,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:46,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240687721] [2023-01-28 06:28:46,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:46,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 06:28:46,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:46,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240687721] [2023-01-28 06:28:46,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240687721] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:28:46,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36710079] [2023-01-28 06:28:46,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 06:28:46,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:28:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:28:46,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:28:46,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 06:28:46,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-01-28 06:28:46,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 06:28:47,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-28 06:28:47,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:28:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 06:28:47,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:28:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36710079] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 06:28:47,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 06:28:47,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 12 [2023-01-28 06:28:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619871608] [2023-01-28 06:28:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:47,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:28:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:28:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-01-28 06:28:47,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 240 [2023-01-28 06:28:47,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 349 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2023-01-28 06:28:47,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:47,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 240 [2023-01-28 06:28:47,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:47,212 INFO L130 PetriNetUnfolder]: 310/844 cut-off events. [2023-01-28 06:28:47,212 INFO L131 PetriNetUnfolder]: For 1271/1281 co-relation queries the response was YES. [2023-01-28 06:28:47,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 844 events. 310/844 cut-off events. For 1271/1281 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6135 event pairs, 72 based on Foata normal form. 50/876 useless extension candidates. Maximal degree in co-relation 1661. Up to 464 conditions per place. [2023-01-28 06:28:47,215 INFO L137 encePairwiseOnDemand]: 230/240 looper letters, 15 selfloop transitions, 12 changer transitions 22/66 dead transitions. [2023-01-28 06:28:47,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 66 transitions, 463 flow [2023-01-28 06:28:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 06:28:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 06:28:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 413 transitions. [2023-01-28 06:28:47,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43020833333333336 [2023-01-28 06:28:47,216 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 413 transitions. [2023-01-28 06:28:47,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 413 transitions. [2023-01-28 06:28:47,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:47,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 413 transitions. [2023-01-28 06:28:47,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2023-01-28 06:28:47,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-01-28 06:28:47,219 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-01-28 06:28:47,219 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 349 flow. Second operand 4 states and 413 transitions. [2023-01-28 06:28:47,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 66 transitions, 463 flow [2023-01-28 06:28:47,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 438 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-01-28 06:28:47,222 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 228 flow [2023-01-28 06:28:47,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2023-01-28 06:28:47,222 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2023-01-28 06:28:47,222 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 228 flow [2023-01-28 06:28:47,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2023-01-28 06:28:47,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:47,223 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:47,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-28 06:28:47,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:28:47,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:47,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:47,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1429769844, now seen corresponding path program 1 times [2023-01-28 06:28:47,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:47,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758820715] [2023-01-28 06:28:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:47,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 06:28:47,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:47,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758820715] [2023-01-28 06:28:47,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758820715] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:28:47,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443886830] [2023-01-28 06:28:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:47,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:28:47,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:28:47,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:28:47,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 06:28:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:47,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-28 06:28:47,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:28:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 06:28:47,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:28:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 06:28:47,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443886830] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:28:47,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:28:47,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 15 [2023-01-28 06:28:47,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295740514] [2023-01-28 06:28:47,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:28:47,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 06:28:47,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:47,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 06:28:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-01-28 06:28:47,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 240 [2023-01-28 06:28:47,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 228 flow. Second operand has 17 states, 17 states have (on average 71.82352941176471) internal successors, (1221), 17 states have internal predecessors, (1221), 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) [2023-01-28 06:28:47,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:47,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 240 [2023-01-28 06:28:47,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:48,158 INFO L130 PetriNetUnfolder]: 191/446 cut-off events. [2023-01-28 06:28:48,159 INFO L131 PetriNetUnfolder]: For 629/629 co-relation queries the response was YES. [2023-01-28 06:28:48,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 446 events. 191/446 cut-off events. For 629/629 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2486 event pairs, 29 based on Foata normal form. 12/457 useless extension candidates. Maximal degree in co-relation 1234. Up to 117 conditions per place. [2023-01-28 06:28:48,160 INFO L137 encePairwiseOnDemand]: 229/240 looper letters, 20 selfloop transitions, 6 changer transitions 58/89 dead transitions. [2023-01-28 06:28:48,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 573 flow [2023-01-28 06:28:48,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-28 06:28:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-01-28 06:28:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1043 transitions. [2023-01-28 06:28:48,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3104166666666667 [2023-01-28 06:28:48,163 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1043 transitions. [2023-01-28 06:28:48,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1043 transitions. [2023-01-28 06:28:48,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:48,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1043 transitions. [2023-01-28 06:28:48,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.5) internal successors, (1043), 14 states have internal predecessors, (1043), 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) [2023-01-28 06:28:48,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 240.0) internal successors, (3600), 15 states have internal predecessors, (3600), 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) [2023-01-28 06:28:48,169 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 240.0) internal successors, (3600), 15 states have internal predecessors, (3600), 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) [2023-01-28 06:28:48,169 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 228 flow. Second operand 14 states and 1043 transitions. [2023-01-28 06:28:48,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 573 flow [2023-01-28 06:28:48,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 89 transitions, 536 flow, removed 12 selfloop flow, removed 7 redundant places. [2023-01-28 06:28:48,171 INFO L231 Difference]: Finished difference. Result has 66 places, 26 transitions, 137 flow [2023-01-28 06:28:48,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=137, PETRI_PLACES=66, PETRI_TRANSITIONS=26} [2023-01-28 06:28:48,172 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2023-01-28 06:28:48,172 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 26 transitions, 137 flow [2023-01-28 06:28:48,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 71.82352941176471) internal successors, (1221), 17 states have internal predecessors, (1221), 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) [2023-01-28 06:28:48,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:48,173 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:48,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-28 06:28:48,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-01-28 06:28:48,377 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 06:28:48,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1949784975, now seen corresponding path program 1 times [2023-01-28 06:28:48,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:48,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108693774] [2023-01-28 06:28:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:48,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:48,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108693774] [2023-01-28 06:28:48,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108693774] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:48,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:48,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 06:28:48,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964841033] [2023-01-28 06:28:48,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:48,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 06:28:48,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 06:28:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 06:28:48,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 240 [2023-01-28 06:28:48,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 26 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 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) [2023-01-28 06:28:48,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:48,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 240 [2023-01-28 06:28:48,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:48,527 INFO L130 PetriNetUnfolder]: 19/72 cut-off events. [2023-01-28 06:28:48,527 INFO L131 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2023-01-28 06:28:48,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 72 events. 19/72 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 202 event pairs, 0 based on Foata normal form. 4/76 useless extension candidates. Maximal degree in co-relation 208. Up to 30 conditions per place. [2023-01-28 06:28:48,527 INFO L137 encePairwiseOnDemand]: 234/240 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-01-28 06:28:48,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 30 transitions, 190 flow [2023-01-28 06:28:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:28:48,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:28:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 528 transitions. [2023-01-28 06:28:48,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3142857142857143 [2023-01-28 06:28:48,529 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 528 transitions. [2023-01-28 06:28:48,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 528 transitions. [2023-01-28 06:28:48,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:48,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 528 transitions. [2023-01-28 06:28:48,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2023-01-28 06:28:48,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 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) [2023-01-28 06:28:48,532 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 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) [2023-01-28 06:28:48,532 INFO L175 Difference]: Start difference. First operand has 66 places, 26 transitions, 137 flow. Second operand 7 states and 528 transitions. [2023-01-28 06:28:48,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 30 transitions, 190 flow [2023-01-28 06:28:48,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 30 transitions, 154 flow, removed 3 selfloop flow, removed 16 redundant places. [2023-01-28 06:28:48,533 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-01-28 06:28:48,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-01-28 06:28:48,533 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -15 predicate places. [2023-01-28 06:28:48,533 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-01-28 06:28:48,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 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) [2023-01-28 06:28:48,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-01-28 06:28:48,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-01-28 06:28:48,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-01-28 06:28:48,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-01-28 06:28:48,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-01-28 06:28:48,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-01-28 06:28:48,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 06:28:48,534 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:48,535 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-01-28 06:28:48,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:48,543 INFO L130 PetriNetUnfolder]: 13/157 cut-off events. [2023-01-28 06:28:48,543 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:28:48,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 157 events. 13/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 474 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2023-01-28 06:28:48,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:48,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:48,544 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:28:48,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:48,544 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:48,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 135 transitions, 282 flow [2023-01-28 06:28:48,552 INFO L130 PetriNetUnfolder]: 13/157 cut-off events. [2023-01-28 06:28:48,552 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:28:48,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 157 events. 13/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 474 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2023-01-28 06:28:48,555 INFO L119 LiptonReduction]: Number of co-enabled transitions 8480 [2023-01-28 06:28:50,536 INFO L134 LiptonReduction]: Checked pairs total: 31874 [2023-01-28 06:28:50,537 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-01-28 06:28:50,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 06:28:50,538 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:28:50,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 06:28:50,541 INFO L130 PetriNetUnfolder]: 5/49 cut-off events. [2023-01-28 06:28:50,541 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:28:50,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:50,541 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 06:28:50,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:28:50,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1810043064, now seen corresponding path program 1 times [2023-01-28 06:28:50,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:50,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827693726] [2023-01-28 06:28:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:28:50,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 06:28:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:28:50,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 06:28:50,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 06:28:50,557 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 06:28:50,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 06:28:50,558 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 06:28:50,558 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-01-28 06:28:50,558 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 06:28:50,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 06:28:50,579 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 06:28:50,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 189 transitions, 399 flow [2023-01-28 06:28:50,598 INFO L130 PetriNetUnfolder]: 19/223 cut-off events. [2023-01-28 06:28:50,598 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 06:28:50,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 223 events. 19/223 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 789 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2023-01-28 06:28:50,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 189 transitions, 399 flow [2023-01-28 06:28:50,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 189 transitions, 399 flow [2023-01-28 06:28:50,602 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:28:50,602 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 189 transitions, 399 flow [2023-01-28 06:28:50,602 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 189 transitions, 399 flow [2023-01-28 06:28:50,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 189 transitions, 399 flow [2023-01-28 06:28:50,620 INFO L130 PetriNetUnfolder]: 19/223 cut-off events. [2023-01-28 06:28:50,620 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 06:28:50,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 223 events. 19/223 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 789 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2023-01-28 06:28:50,630 INFO L119 LiptonReduction]: Number of co-enabled transitions 21306 [2023-01-28 06:28:52,995 INFO L134 LiptonReduction]: Checked pairs total: 84802 [2023-01-28 06:28:52,995 INFO L136 LiptonReduction]: Total number of compositions: 150 [2023-01-28 06:28:52,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:28:52,996 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:28:52,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-28 06:28:52,999 INFO L130 PetriNetUnfolder]: 5/47 cut-off events. [2023-01-28 06:28:52,999 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 06:28:52,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:52,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:52,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:28:52,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:52,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1921087803, now seen corresponding path program 1 times [2023-01-28 06:28:52,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:52,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373327143] [2023-01-28 06:28:52,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:52,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:28:53,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373327143] [2023-01-28 06:28:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373327143] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:53,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:28:53,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071592401] [2023-01-28 06:28:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:53,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:28:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:28:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:28:53,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 339 [2023-01-28 06:28:53,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2023-01-28 06:28:53,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:53,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 339 [2023-01-28 06:28:53,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:55,340 INFO L130 PetriNetUnfolder]: 30296/42821 cut-off events. [2023-01-28 06:28:55,340 INFO L131 PetriNetUnfolder]: For 1681/1681 co-relation queries the response was YES. [2023-01-28 06:28:55,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86054 conditions, 42821 events. 30296/42821 cut-off events. For 1681/1681 co-relation queries the response was YES. Maximal size of possible extension queue 1997. Compared 293413 event pairs, 13118 based on Foata normal form. 0/34839 useless extension candidates. Maximal degree in co-relation 14115. Up to 39627 conditions per place. [2023-01-28 06:28:55,535 INFO L137 encePairwiseOnDemand]: 323/339 looper letters, 91 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2023-01-28 06:28:55,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 104 transitions, 431 flow [2023-01-28 06:28:55,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:28:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:28:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2023-01-28 06:28:55,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.415929203539823 [2023-01-28 06:28:55,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2023-01-28 06:28:55,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2023-01-28 06:28:55,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:55,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2023-01-28 06:28:55,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-01-28 06:28:55,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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) [2023-01-28 06:28:55,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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) [2023-01-28 06:28:55,540 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 203 flow. Second operand 3 states and 423 transitions. [2023-01-28 06:28:55,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 104 transitions, 431 flow [2023-01-28 06:28:55,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 104 transitions, 423 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-01-28 06:28:55,545 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 211 flow [2023-01-28 06:28:55,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-01-28 06:28:55,545 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2023-01-28 06:28:55,545 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 211 flow [2023-01-28 06:28:55,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2023-01-28 06:28:55,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:55,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:55,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 06:28:55,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:28:55,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1349051883, now seen corresponding path program 1 times [2023-01-28 06:28:55,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:55,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922023214] [2023-01-28 06:28:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:55,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:28:55,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:55,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922023214] [2023-01-28 06:28:55,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922023214] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:55,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:55,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:28:55,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767852833] [2023-01-28 06:28:55,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:55,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:28:55,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:55,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:28:55,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:28:55,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 339 [2023-01-28 06:28:55,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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) [2023-01-28 06:28:55,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:55,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 339 [2023-01-28 06:28:55,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:28:58,775 INFO L130 PetriNetUnfolder]: 40997/58515 cut-off events. [2023-01-28 06:28:58,775 INFO L131 PetriNetUnfolder]: For 5522/5522 co-relation queries the response was YES. [2023-01-28 06:28:58,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122686 conditions, 58515 events. 40997/58515 cut-off events. For 5522/5522 co-relation queries the response was YES. Maximal size of possible extension queue 3053. Compared 432080 event pairs, 13203 based on Foata normal form. 310/51612 useless extension candidates. Maximal degree in co-relation 89481. Up to 25259 conditions per place. [2023-01-28 06:28:59,025 INFO L137 encePairwiseOnDemand]: 328/339 looper letters, 198 selfloop transitions, 14 changer transitions 0/221 dead transitions. [2023-01-28 06:28:59,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 221 transitions, 973 flow [2023-01-28 06:28:59,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 06:28:59,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 06:28:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 827 transitions. [2023-01-28 06:28:59,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40658800393313665 [2023-01-28 06:28:59,028 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 827 transitions. [2023-01-28 06:28:59,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 827 transitions. [2023-01-28 06:28:59,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:28:59,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 827 transitions. [2023-01-28 06:28:59,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 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) [2023-01-28 06:28:59,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 339.0) internal successors, (2373), 7 states have internal predecessors, (2373), 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) [2023-01-28 06:28:59,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 339.0) internal successors, (2373), 7 states have internal predecessors, (2373), 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) [2023-01-28 06:28:59,032 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 211 flow. Second operand 6 states and 827 transitions. [2023-01-28 06:28:59,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 221 transitions, 973 flow [2023-01-28 06:28:59,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 221 transitions, 967 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:28:59,035 INFO L231 Difference]: Finished difference. Result has 87 places, 92 transitions, 296 flow [2023-01-28 06:28:59,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=87, PETRI_TRANSITIONS=92} [2023-01-28 06:28:59,037 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 3 predicate places. [2023-01-28 06:28:59,037 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 92 transitions, 296 flow [2023-01-28 06:28:59,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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) [2023-01-28 06:28:59,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:28:59,037 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:28:59,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 06:28:59,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:28:59,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:28:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1640946625, now seen corresponding path program 1 times [2023-01-28 06:28:59,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:28:59,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14194091] [2023-01-28 06:28:59,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:28:59,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:28:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:28:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:28:59,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:28:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14194091] [2023-01-28 06:28:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14194091] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:28:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:28:59,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:28:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893434343] [2023-01-28 06:28:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:28:59,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:28:59,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:28:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:28:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:28:59,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 339 [2023-01-28 06:28:59,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 92 transitions, 296 flow. Second operand has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 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) [2023-01-28 06:28:59,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:28:59,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 339 [2023-01-28 06:28:59,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:03,559 INFO L130 PetriNetUnfolder]: 52996/76376 cut-off events. [2023-01-28 06:29:03,559 INFO L131 PetriNetUnfolder]: For 21680/21680 co-relation queries the response was YES. [2023-01-28 06:29:03,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169230 conditions, 76376 events. 52996/76376 cut-off events. For 21680/21680 co-relation queries the response was YES. Maximal size of possible extension queue 4205. Compared 596463 event pairs, 18697 based on Foata normal form. 330/69809 useless extension candidates. Maximal degree in co-relation 75087. Up to 32710 conditions per place. [2023-01-28 06:29:03,921 INFO L137 encePairwiseOnDemand]: 328/339 looper letters, 205 selfloop transitions, 19 changer transitions 0/233 dead transitions. [2023-01-28 06:29:03,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 233 transitions, 1161 flow [2023-01-28 06:29:03,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 06:29:03,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 06:29:03,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 826 transitions. [2023-01-28 06:29:03,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4060963618485742 [2023-01-28 06:29:03,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 826 transitions. [2023-01-28 06:29:03,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 826 transitions. [2023-01-28 06:29:03,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:03,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 826 transitions. [2023-01-28 06:29:03,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.66666666666666) internal successors, (826), 6 states have internal predecessors, (826), 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) [2023-01-28 06:29:03,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 339.0) internal successors, (2373), 7 states have internal predecessors, (2373), 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) [2023-01-28 06:29:03,927 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 339.0) internal successors, (2373), 7 states have internal predecessors, (2373), 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) [2023-01-28 06:29:03,928 INFO L175 Difference]: Start difference. First operand has 87 places, 92 transitions, 296 flow. Second operand 6 states and 826 transitions. [2023-01-28 06:29:03,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 233 transitions, 1161 flow [2023-01-28 06:29:03,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 233 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:29:03,949 INFO L231 Difference]: Finished difference. Result has 93 places, 104 transitions, 432 flow [2023-01-28 06:29:03,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=432, PETRI_PLACES=93, PETRI_TRANSITIONS=104} [2023-01-28 06:29:03,950 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 9 predicate places. [2023-01-28 06:29:03,950 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 104 transitions, 432 flow [2023-01-28 06:29:03,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 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) [2023-01-28 06:29:03,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:03,951 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:03,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 06:29:03,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:03,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:03,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1929602686, now seen corresponding path program 1 times [2023-01-28 06:29:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:03,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921765451] [2023-01-28 06:29:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:03,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:29:04,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:04,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921765451] [2023-01-28 06:29:04,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921765451] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:04,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:04,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:29:04,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351118977] [2023-01-28 06:29:04,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:04,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:29:04,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:04,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:29:04,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:29:04,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 339 [2023-01-28 06:29:04,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 104 transitions, 432 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:29:04,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:04,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 339 [2023-01-28 06:29:04,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:09,981 INFO L130 PetriNetUnfolder]: 65067/94852 cut-off events. [2023-01-28 06:29:09,981 INFO L131 PetriNetUnfolder]: For 48393/48411 co-relation queries the response was YES. [2023-01-28 06:29:10,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220357 conditions, 94852 events. 65067/94852 cut-off events. For 48393/48411 co-relation queries the response was YES. Maximal size of possible extension queue 5396. Compared 779204 event pairs, 23097 based on Foata normal form. 340/90062 useless extension candidates. Maximal degree in co-relation 104939. Up to 40055 conditions per place. [2023-01-28 06:29:10,439 INFO L137 encePairwiseOnDemand]: 328/339 looper letters, 214 selfloop transitions, 25 changer transitions 0/248 dead transitions. [2023-01-28 06:29:10,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 248 transitions, 1434 flow [2023-01-28 06:29:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 06:29:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 06:29:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2023-01-28 06:29:10,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40462143559488695 [2023-01-28 06:29:10,442 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2023-01-28 06:29:10,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2023-01-28 06:29:10,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:10,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2023-01-28 06:29:10,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 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) [2023-01-28 06:29:10,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 339.0) internal successors, (2373), 7 states have internal predecessors, (2373), 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) [2023-01-28 06:29:10,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 339.0) internal successors, (2373), 7 states have internal predecessors, (2373), 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) [2023-01-28 06:29:10,446 INFO L175 Difference]: Start difference. First operand has 93 places, 104 transitions, 432 flow. Second operand 6 states and 823 transitions. [2023-01-28 06:29:10,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 248 transitions, 1434 flow [2023-01-28 06:29:10,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 248 transitions, 1434 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:29:10,494 INFO L231 Difference]: Finished difference. Result has 100 places, 119 transitions, 644 flow [2023-01-28 06:29:10,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=644, PETRI_PLACES=100, PETRI_TRANSITIONS=119} [2023-01-28 06:29:10,494 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 16 predicate places. [2023-01-28 06:29:10,495 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 119 transitions, 644 flow [2023-01-28 06:29:10,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:29:10,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:10,495 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:10,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 06:29:10,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:10,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2021240983, now seen corresponding path program 1 times [2023-01-28 06:29:10,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:10,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134319287] [2023-01-28 06:29:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:10,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:29:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134319287] [2023-01-28 06:29:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134319287] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:10,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:29:10,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012894405] [2023-01-28 06:29:10,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:10,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:29:10,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:10,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:29:10,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:29:10,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 339 [2023-01-28 06:29:10,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 119 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2023-01-28 06:29:10,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:10,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 339 [2023-01-28 06:29:10,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:14,505 INFO L130 PetriNetUnfolder]: 37369/58824 cut-off events. [2023-01-28 06:29:14,506 INFO L131 PetriNetUnfolder]: For 19993/21584 co-relation queries the response was YES. [2023-01-28 06:29:14,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127694 conditions, 58824 events. 37369/58824 cut-off events. For 19993/21584 co-relation queries the response was YES. Maximal size of possible extension queue 3831. Compared 527838 event pairs, 20753 based on Foata normal form. 2420/58765 useless extension candidates. Maximal degree in co-relation 86536. Up to 31919 conditions per place. [2023-01-28 06:29:14,792 INFO L137 encePairwiseOnDemand]: 333/339 looper letters, 77 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2023-01-28 06:29:14,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 148 transitions, 876 flow [2023-01-28 06:29:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:29:14,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:29:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-01-28 06:29:14,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46804326450344147 [2023-01-28 06:29:14,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-01-28 06:29:14,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-01-28 06:29:14,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:14,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-01-28 06:29:14,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2023-01-28 06:29:14,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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) [2023-01-28 06:29:14,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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) [2023-01-28 06:29:14,796 INFO L175 Difference]: Start difference. First operand has 100 places, 119 transitions, 644 flow. Second operand 3 states and 476 transitions. [2023-01-28 06:29:14,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 148 transitions, 876 flow [2023-01-28 06:29:14,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 148 transitions, 876 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:29:14,820 INFO L231 Difference]: Finished difference. Result has 104 places, 122 transitions, 674 flow [2023-01-28 06:29:14,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=104, PETRI_TRANSITIONS=122} [2023-01-28 06:29:14,820 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 20 predicate places. [2023-01-28 06:29:14,820 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 122 transitions, 674 flow [2023-01-28 06:29:14,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2023-01-28 06:29:14,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:14,820 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:14,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 06:29:14,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:14,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1297864425, now seen corresponding path program 1 times [2023-01-28 06:29:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:14,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054424209] [2023-01-28 06:29:14,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:14,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:29:14,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:14,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054424209] [2023-01-28 06:29:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054424209] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:14,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:14,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:29:14,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855151281] [2023-01-28 06:29:14,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:14,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:29:14,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:14,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:29:14,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:29:14,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 339 [2023-01-28 06:29:14,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 122 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2023-01-28 06:29:14,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:14,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 339 [2023-01-28 06:29:14,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:15,936 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, 104#thr1EXITtrue, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, 116#L711-1true, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 140#L725-1true, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 232#(= ~inc_flag~0 1), 212#true]) [2023-01-28 06:29:15,936 INFO L383 tUnfolder$Statistics]: this new event has 32 ancestors and is cut-off event [2023-01-28 06:29:15,936 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-01-28 06:29:15,936 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:15,936 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-01-28 06:29:15,954 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [8#L711-1true, Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 140#L725-1true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:15,954 INFO L383 tUnfolder$Statistics]: this new event has 32 ancestors and is cut-off event [2023-01-28 06:29:15,954 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-01-28 06:29:15,954 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-01-28 06:29:15,954 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:15,972 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1270] L725-->L725-1: Formula: (and (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|) (not (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11|, ~m~0=v_~m~0_124, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][91], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 43#L725-1true, 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 173#L711-1true, thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:15,973 INFO L383 tUnfolder$Statistics]: this new event has 32 ancestors and is cut-off event [2023-01-28 06:29:15,973 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-01-28 06:29:15,973 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-01-28 06:29:15,973 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:16,274 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, 73#L712true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 104#thr1EXITtrue, 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 140#L725-1true, 101#L738-5true, thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 232#(= ~inc_flag~0 1), Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true]) [2023-01-28 06:29:16,274 INFO L383 tUnfolder$Statistics]: this new event has 33 ancestors and is cut-off event [2023-01-28 06:29:16,274 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-01-28 06:29:16,274 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-01-28 06:29:16,275 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-01-28 06:29:16,288 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 14#L712true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 140#L725-1true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,289 INFO L383 tUnfolder$Statistics]: this new event has 33 ancestors and is cut-off event [2023-01-28 06:29:16,289 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-01-28 06:29:16,289 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-01-28 06:29:16,289 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-01-28 06:29:16,306 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1270] L725-->L725-1: Formula: (and (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|) (not (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11|, ~m~0=v_~m~0_124, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][91], [83#L712true, Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 43#L725-1true, 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,306 INFO L383 tUnfolder$Statistics]: this new event has 33 ancestors and is cut-off event [2023-01-28 06:29:16,306 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-01-28 06:29:16,306 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-01-28 06:29:16,306 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-01-28 06:29:16,562 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 104#thr1EXITtrue, 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, 116#L711-1true, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 140#L725-1true, thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 212#true, 232#(= ~inc_flag~0 1), Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0))]) [2023-01-28 06:29:16,562 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,562 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,562 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,562 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,577 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [8#L711-1true, Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 140#L725-1true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1), Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true]) [2023-01-28 06:29:16,577 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,577 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,577 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,577 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,596 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1270] L725-->L725-1: Formula: (and (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|) (not (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11|, ~m~0=v_~m~0_124, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][91], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 43#L725-1true, 173#L711-1true, 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,596 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,596 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,596 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,596 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,670 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 104#thr1EXITtrue, 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 140#L725-1true, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 232#(= ~inc_flag~0 1), 212#true]) [2023-01-28 06:29:16,670 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,670 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,670 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,670 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,686 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 104#thr1EXITtrue, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 140#L725-1true, 101#L738-5true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1), Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true]) [2023-01-28 06:29:16,686 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,686 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,686 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,686 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,706 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1270] L725-->L725-1: Formula: (and (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|) (not (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11|, ~m~0=v_~m~0_124, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][91], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 43#L725-1true, 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), 101#L738-5true, thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, 19#thr1EXITtrue, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,706 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,706 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,706 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-01-28 06:29:16,707 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-01-28 06:29:16,772 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 73#L712true, 104#thr1EXITtrue, 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 140#L725-1true, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 212#true, Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,772 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-01-28 06:29:16,772 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-01-28 06:29:16,772 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-01-28 06:29:16,773 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-01-28 06:29:16,790 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 29#L738-4true, 14#L712true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 140#L725-1true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,790 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-01-28 06:29:16,790 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-01-28 06:29:16,790 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-01-28 06:29:16,790 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-01-28 06:29:16,807 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1270] L725-->L725-1: Formula: (and (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|) (not (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11|, ~m~0=v_~m~0_124, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][91], [83#L712true, Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 43#L725-1true, 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:16,807 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-01-28 06:29:16,807 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-01-28 06:29:16,808 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-01-28 06:29:16,808 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-01-28 06:29:17,273 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 104#thr1EXITtrue, 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 140#L725-1true, 200#true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 212#true, Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:17,273 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-01-28 06:29:17,273 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:17,273 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-01-28 06:29:17,273 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:17,286 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1164] L725-->L725-1: Formula: (and (not (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| |v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|) (= |v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{~m~0=v_~m~0_124, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_11|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][120], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 29#L738-4true, 104#thr1EXITtrue, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 140#L725-1true, thr1Thread3of3ForFork0InUse, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, Black: 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), 212#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:17,287 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-01-28 06:29:17,287 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:17,287 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:17,287 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-01-28 06:29:17,307 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1270] L725-->L725-1: Formula: (and (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11| (ite (= (mod v_~m~0_125 4294967296) 1) 1 0)) (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| |v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|) (not (= |v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11| 0)) (= v_~m~0_124 0)) InVars {~m~0=v_~m~0_125} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_11|, ~m~0=v_~m~0_124, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_11|} AuxVars[] AssignedVars[~m~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][91], [Black: 224#true, Black: 191#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|)), 29#L738-4true, Black: 196#(and (<= |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread1of3ForFork0_inc_~inc_v~0#1|) (<= (div ~value~0 4294967296) (div |thr1Thread1of3ForFork0_inc_~inc_v~0#1| 4294967296))), 43#L725-1true, 215#(and (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0)), thr1Thread1of3ForFork0InUse, Black: 208#(and (<= (div ~value~0 4294967296) (div |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 4294967296)) (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= (+ |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), Black: 203#(and (<= |thr1Thread2of3ForFork0_inc_~inc_v~0#1| 0) (<= 0 |thr1Thread2of3ForFork0_inc_~inc_v~0#1|)), thr1Thread2of3ForFork0InUse, 200#true, thr1Thread3of3ForFork0InUse, 19#thr1EXITtrue, Black: 185#(and (<= ~value~0 (* (div ~value~0 4294967296) 4294967296)) (< 0 (+ (div ~value~0 4294967296) 1))), 226#(= ~dec_flag~0 1), 144#thr1EXITtrue, Black: 220#(and (<= (+ |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 1) ~value~0) (< 0 (+ (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296) 1)) (<= |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 0) (<= (div ~value~0 4294967296) (div |thr1Thread3of3ForFork0_inc_~inc_v~0#1| 4294967296))), 188#true, 232#(= ~inc_flag~0 1)]) [2023-01-28 06:29:17,307 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-01-28 06:29:17,307 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-01-28 06:29:17,307 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:17,307 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-01-28 06:29:17,885 INFO L130 PetriNetUnfolder]: 25485/42137 cut-off events. [2023-01-28 06:29:17,885 INFO L131 PetriNetUnfolder]: For 22810/23232 co-relation queries the response was YES. [2023-01-28 06:29:17,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95745 conditions, 42137 events. 25485/42137 cut-off events. For 22810/23232 co-relation queries the response was YES. Maximal size of possible extension queue 2970. Compared 397235 event pairs, 13239 based on Foata normal form. 134/40618 useless extension candidates. Maximal degree in co-relation 72953. Up to 36476 conditions per place. [2023-01-28 06:29:18,063 INFO L137 encePairwiseOnDemand]: 333/339 looper letters, 59 selfloop transitions, 3 changer transitions 3/134 dead transitions. [2023-01-28 06:29:18,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 134 transitions, 838 flow [2023-01-28 06:29:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:29:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:29:18,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2023-01-28 06:29:18,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503441494591937 [2023-01-28 06:29:18,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2023-01-28 06:29:18,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2023-01-28 06:29:18,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:18,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2023-01-28 06:29:18,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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) [2023-01-28 06:29:18,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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) [2023-01-28 06:29:18,067 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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) [2023-01-28 06:29:18,067 INFO L175 Difference]: Start difference. First operand has 104 places, 122 transitions, 674 flow. Second operand 3 states and 458 transitions. [2023-01-28 06:29:18,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 134 transitions, 838 flow [2023-01-28 06:29:18,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 134 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:29:18,161 INFO L231 Difference]: Finished difference. Result has 103 places, 119 transitions, 674 flow [2023-01-28 06:29:18,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=103, PETRI_TRANSITIONS=119} [2023-01-28 06:29:18,162 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 19 predicate places. [2023-01-28 06:29:18,162 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 119 transitions, 674 flow [2023-01-28 06:29:18,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2023-01-28 06:29:18,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:18,162 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:18,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 06:29:18,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:18,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:18,162 INFO L85 PathProgramCache]: Analyzing trace with hash 569169597, now seen corresponding path program 1 times [2023-01-28 06:29:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:18,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049775050] [2023-01-28 06:29:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:29:18,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:18,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049775050] [2023-01-28 06:29:18,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049775050] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:18,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:18,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:29:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543549581] [2023-01-28 06:29:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:18,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 06:29:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 06:29:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 06:29:18,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 339 [2023-01-28 06:29:18,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 119 transitions, 674 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2023-01-28 06:29:18,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:18,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 339 [2023-01-28 06:29:18,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:26,314 INFO L130 PetriNetUnfolder]: 76827/114975 cut-off events. [2023-01-28 06:29:26,314 INFO L131 PetriNetUnfolder]: For 114149/114751 co-relation queries the response was YES. [2023-01-28 06:29:26,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290945 conditions, 114975 events. 76827/114975 cut-off events. For 114149/114751 co-relation queries the response was YES. Maximal size of possible extension queue 6562. Compared 1017199 event pairs, 37209 based on Foata normal form. 884/115660 useless extension candidates. Maximal degree in co-relation 171092. Up to 85560 conditions per place. [2023-01-28 06:29:26,908 INFO L137 encePairwiseOnDemand]: 328/339 looper letters, 210 selfloop transitions, 37 changer transitions 6/265 dead transitions. [2023-01-28 06:29:26,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 265 transitions, 1794 flow [2023-01-28 06:29:26,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 06:29:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 06:29:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1010 transitions. [2023-01-28 06:29:26,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3724188790560472 [2023-01-28 06:29:26,911 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1010 transitions. [2023-01-28 06:29:26,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1010 transitions. [2023-01-28 06:29:26,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:26,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1010 transitions. [2023-01-28 06:29:26,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.25) internal successors, (1010), 8 states have internal predecessors, (1010), 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) [2023-01-28 06:29:26,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 339.0) internal successors, (3051), 9 states have internal predecessors, (3051), 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) [2023-01-28 06:29:26,915 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 339.0) internal successors, (3051), 9 states have internal predecessors, (3051), 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) [2023-01-28 06:29:26,915 INFO L175 Difference]: Start difference. First operand has 103 places, 119 transitions, 674 flow. Second operand 8 states and 1010 transitions. [2023-01-28 06:29:26,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 265 transitions, 1794 flow [2023-01-28 06:29:27,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 265 transitions, 1794 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:29:27,032 INFO L231 Difference]: Finished difference. Result has 114 places, 142 transitions, 1052 flow [2023-01-28 06:29:27,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1052, PETRI_PLACES=114, PETRI_TRANSITIONS=142} [2023-01-28 06:29:27,032 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 30 predicate places. [2023-01-28 06:29:27,032 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 142 transitions, 1052 flow [2023-01-28 06:29:27,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2023-01-28 06:29:27,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:27,033 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:27,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-28 06:29:27,033 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:27,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash -50146499, now seen corresponding path program 2 times [2023-01-28 06:29:27,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:27,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114202641] [2023-01-28 06:29:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:27,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 06:29:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114202641] [2023-01-28 06:29:27,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114202641] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:27,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:27,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:29:27,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2277653] [2023-01-28 06:29:27,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:27,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 06:29:27,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:27,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 06:29:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 06:29:27,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 339 [2023-01-28 06:29:27,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 142 transitions, 1052 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2023-01-28 06:29:27,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:27,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 339 [2023-01-28 06:29:27,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:38,854 INFO L130 PetriNetUnfolder]: 97758/146248 cut-off events. [2023-01-28 06:29:38,854 INFO L131 PetriNetUnfolder]: For 204675/205749 co-relation queries the response was YES. [2023-01-28 06:29:39,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387094 conditions, 146248 events. 97758/146248 cut-off events. For 204675/205749 co-relation queries the response was YES. Maximal size of possible extension queue 8393. Compared 1324385 event pairs, 36921 based on Foata normal form. 1224/147161 useless extension candidates. Maximal degree in co-relation 355647. Up to 88295 conditions per place. [2023-01-28 06:29:39,601 INFO L137 encePairwiseOnDemand]: 327/339 looper letters, 232 selfloop transitions, 62 changer transitions 8/314 dead transitions. [2023-01-28 06:29:39,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 314 transitions, 2582 flow [2023-01-28 06:29:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 06:29:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 06:29:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1021 transitions. [2023-01-28 06:29:39,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37647492625368734 [2023-01-28 06:29:39,604 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1021 transitions. [2023-01-28 06:29:39,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1021 transitions. [2023-01-28 06:29:39,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:39,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1021 transitions. [2023-01-28 06:29:39,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.625) internal successors, (1021), 8 states have internal predecessors, (1021), 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) [2023-01-28 06:29:39,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 339.0) internal successors, (3051), 9 states have internal predecessors, (3051), 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) [2023-01-28 06:29:39,608 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 339.0) internal successors, (3051), 9 states have internal predecessors, (3051), 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) [2023-01-28 06:29:39,608 INFO L175 Difference]: Start difference. First operand has 114 places, 142 transitions, 1052 flow. Second operand 8 states and 1021 transitions. [2023-01-28 06:29:39,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 314 transitions, 2582 flow [2023-01-28 06:29:40,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 314 transitions, 2549 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-01-28 06:29:40,428 INFO L231 Difference]: Finished difference. Result has 123 places, 178 transitions, 1746 flow [2023-01-28 06:29:40,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1746, PETRI_PLACES=123, PETRI_TRANSITIONS=178} [2023-01-28 06:29:40,429 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 39 predicate places. [2023-01-28 06:29:40,429 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 178 transitions, 1746 flow [2023-01-28 06:29:40,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2023-01-28 06:29:40,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:40,429 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:40,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-28 06:29:40,429 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:40,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1294516265, now seen corresponding path program 3 times [2023-01-28 06:29:40,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:40,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380482787] [2023-01-28 06:29:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:29:40,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:40,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380482787] [2023-01-28 06:29:40,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380482787] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:40,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:40,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 06:29:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356988668] [2023-01-28 06:29:40,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:40,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 06:29:40,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 06:29:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 06:29:40,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 339 [2023-01-28 06:29:40,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 178 transitions, 1746 flow. Second operand has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2023-01-28 06:29:40,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:40,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 339 [2023-01-28 06:29:40,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:29:52,587 INFO L130 PetriNetUnfolder]: 91247/137743 cut-off events. [2023-01-28 06:29:52,588 INFO L131 PetriNetUnfolder]: For 266280/267735 co-relation queries the response was YES. [2023-01-28 06:29:53,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380739 conditions, 137743 events. 91247/137743 cut-off events. For 266280/267735 co-relation queries the response was YES. Maximal size of possible extension queue 7969. Compared 1268806 event pairs, 29325 based on Foata normal form. 2542/140037 useless extension candidates. Maximal degree in co-relation 359426. Up to 61982 conditions per place. [2023-01-28 06:29:53,451 INFO L137 encePairwiseOnDemand]: 325/339 looper letters, 253 selfloop transitions, 72 changer transitions 31/368 dead transitions. [2023-01-28 06:29:53,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 368 transitions, 3190 flow [2023-01-28 06:29:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:29:53,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:29:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1165 transitions. [2023-01-28 06:29:53,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3818420190101606 [2023-01-28 06:29:53,454 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1165 transitions. [2023-01-28 06:29:53,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1165 transitions. [2023-01-28 06:29:53,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:29:53,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1165 transitions. [2023-01-28 06:29:53,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.44444444444446) internal successors, (1165), 9 states have internal predecessors, (1165), 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) [2023-01-28 06:29:53,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:29:53,467 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:29:53,467 INFO L175 Difference]: Start difference. First operand has 123 places, 178 transitions, 1746 flow. Second operand 9 states and 1165 transitions. [2023-01-28 06:29:53,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 368 transitions, 3190 flow [2023-01-28 06:29:55,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 368 transitions, 3161 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 06:29:55,255 INFO L231 Difference]: Finished difference. Result has 133 places, 186 transitions, 2049 flow [2023-01-28 06:29:55,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1717, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2049, PETRI_PLACES=133, PETRI_TRANSITIONS=186} [2023-01-28 06:29:55,255 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 49 predicate places. [2023-01-28 06:29:55,255 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 186 transitions, 2049 flow [2023-01-28 06:29:55,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2023-01-28 06:29:55,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:29:55,256 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:29:55,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-28 06:29:55,256 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:29:55,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:29:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash -905716053, now seen corresponding path program 1 times [2023-01-28 06:29:55,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:29:55,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178000277] [2023-01-28 06:29:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:29:55,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:29:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:29:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:29:55,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:29:55,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178000277] [2023-01-28 06:29:55,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178000277] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:29:55,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:29:55,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 06:29:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352542660] [2023-01-28 06:29:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:29:55,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 06:29:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:29:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 06:29:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 06:29:55,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 339 [2023-01-28 06:29:55,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 186 transitions, 2049 flow. Second operand has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2023-01-28 06:29:55,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:29:55,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 339 [2023-01-28 06:29:55,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:07,551 INFO L130 PetriNetUnfolder]: 89335/135237 cut-off events. [2023-01-28 06:30:07,551 INFO L131 PetriNetUnfolder]: For 346929/348205 co-relation queries the response was YES. [2023-01-28 06:30:08,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388802 conditions, 135237 events. 89335/135237 cut-off events. For 346929/348205 co-relation queries the response was YES. Maximal size of possible extension queue 8024. Compared 1250264 event pairs, 28655 based on Foata normal form. 2380/137368 useless extension candidates. Maximal degree in co-relation 366972. Up to 63219 conditions per place. [2023-01-28 06:30:08,446 INFO L137 encePairwiseOnDemand]: 325/339 looper letters, 243 selfloop transitions, 69 changer transitions 41/365 dead transitions. [2023-01-28 06:30:08,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 365 transitions, 3491 flow [2023-01-28 06:30:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:30:08,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:30:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1154 transitions. [2023-01-28 06:30:08,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3782366437233694 [2023-01-28 06:30:08,448 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1154 transitions. [2023-01-28 06:30:08,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1154 transitions. [2023-01-28 06:30:08,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:08,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1154 transitions. [2023-01-28 06:30:08,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.22222222222223) internal successors, (1154), 9 states have internal predecessors, (1154), 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) [2023-01-28 06:30:08,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:08,466 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:08,466 INFO L175 Difference]: Start difference. First operand has 133 places, 186 transitions, 2049 flow. Second operand 9 states and 1154 transitions. [2023-01-28 06:30:08,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 365 transitions, 3491 flow [2023-01-28 06:30:11,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 365 transitions, 3325 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-01-28 06:30:11,115 INFO L231 Difference]: Finished difference. Result has 139 places, 188 transitions, 2151 flow [2023-01-28 06:30:11,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2151, PETRI_PLACES=139, PETRI_TRANSITIONS=188} [2023-01-28 06:30:11,116 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 55 predicate places. [2023-01-28 06:30:11,116 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 188 transitions, 2151 flow [2023-01-28 06:30:11,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2023-01-28 06:30:11,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:11,116 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:11,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-28 06:30:11,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:11,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash 875584616, now seen corresponding path program 1 times [2023-01-28 06:30:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:11,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158560893] [2023-01-28 06:30:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:11,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:11,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:11,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158560893] [2023-01-28 06:30:11,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158560893] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:30:11,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729821691] [2023-01-28 06:30:11,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:11,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:11,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:30:11,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:30:11,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 06:30:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:11,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-28 06:30:11,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:30:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:11,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:30:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:11,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729821691] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 06:30:11,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 06:30:11,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 12 [2023-01-28 06:30:11,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950045603] [2023-01-28 06:30:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:11,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:30:11,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:30:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-01-28 06:30:11,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 339 [2023-01-28 06:30:11,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 188 transitions, 2151 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-01-28 06:30:11,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:11,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 339 [2023-01-28 06:30:11,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:17,854 INFO L130 PetriNetUnfolder]: 42580/71142 cut-off events. [2023-01-28 06:30:17,855 INFO L131 PetriNetUnfolder]: For 110600/111968 co-relation queries the response was YES. [2023-01-28 06:30:18,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164267 conditions, 71142 events. 42580/71142 cut-off events. For 110600/111968 co-relation queries the response was YES. Maximal size of possible extension queue 4865. Compared 713249 event pairs, 23189 based on Foata normal form. 4814/73322 useless extension candidates. Maximal degree in co-relation 156770. Up to 62170 conditions per place. [2023-01-28 06:30:18,222 INFO L137 encePairwiseOnDemand]: 314/339 looper letters, 43 selfloop transitions, 28 changer transitions 120/235 dead transitions. [2023-01-28 06:30:18,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 235 transitions, 2523 flow [2023-01-28 06:30:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 06:30:18,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 06:30:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 609 transitions. [2023-01-28 06:30:18,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4491150442477876 [2023-01-28 06:30:18,224 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 609 transitions. [2023-01-28 06:30:18,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 609 transitions. [2023-01-28 06:30:18,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:18,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 609 transitions. [2023-01-28 06:30:18,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 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) [2023-01-28 06:30:18,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 339.0) internal successors, (1695), 5 states have internal predecessors, (1695), 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) [2023-01-28 06:30:18,226 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 339.0) internal successors, (1695), 5 states have internal predecessors, (1695), 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) [2023-01-28 06:30:18,226 INFO L175 Difference]: Start difference. First operand has 139 places, 188 transitions, 2151 flow. Second operand 4 states and 609 transitions. [2023-01-28 06:30:18,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 235 transitions, 2523 flow [2023-01-28 06:30:18,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 235 transitions, 2283 flow, removed 48 selfloop flow, removed 6 redundant places. [2023-01-28 06:30:18,576 INFO L231 Difference]: Finished difference. Result has 137 places, 108 transitions, 673 flow [2023-01-28 06:30:18,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=673, PETRI_PLACES=137, PETRI_TRANSITIONS=108} [2023-01-28 06:30:18,577 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 53 predicate places. [2023-01-28 06:30:18,577 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 108 transitions, 673 flow [2023-01-28 06:30:18,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-01-28 06:30:18,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:18,577 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:18,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 06:30:18,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:18,781 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:18,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:18,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1860210196, now seen corresponding path program 1 times [2023-01-28 06:30:18,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:18,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104807569] [2023-01-28 06:30:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:18,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:18,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:18,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104807569] [2023-01-28 06:30:18,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104807569] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:30:18,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875995579] [2023-01-28 06:30:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:18,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:18,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:30:18,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:30:18,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 06:30:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:18,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-28 06:30:18,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:30:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:19,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:30:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:19,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875995579] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:30:19,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:30:19,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 15 [2023-01-28 06:30:19,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441607055] [2023-01-28 06:30:19,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:30:19,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 06:30:19,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:19,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 06:30:19,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-01-28 06:30:19,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 339 [2023-01-28 06:30:19,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 108 transitions, 673 flow. Second operand has 17 states, 17 states have (on average 98.17647058823529) internal successors, (1669), 17 states have internal predecessors, (1669), 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) [2023-01-28 06:30:19,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:19,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 339 [2023-01-28 06:30:19,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:24,740 INFO L130 PetriNetUnfolder]: 21975/36463 cut-off events. [2023-01-28 06:30:24,741 INFO L131 PetriNetUnfolder]: For 53196/53210 co-relation queries the response was YES. [2023-01-28 06:30:24,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111404 conditions, 36463 events. 21975/36463 cut-off events. For 53196/53210 co-relation queries the response was YES. Maximal size of possible extension queue 2160. Compared 328704 event pairs, 2040 based on Foata normal form. 164/36561 useless extension candidates. Maximal degree in co-relation 111368. Up to 10193 conditions per place. [2023-01-28 06:30:24,944 INFO L137 encePairwiseOnDemand]: 313/339 looper letters, 404 selfloop transitions, 67 changer transitions 431/911 dead transitions. [2023-01-28 06:30:24,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 911 transitions, 6441 flow [2023-01-28 06:30:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-28 06:30:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-01-28 06:30:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 5275 transitions. [2023-01-28 06:30:24,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3241764995083579 [2023-01-28 06:30:24,948 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 5275 transitions. [2023-01-28 06:30:24,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 5275 transitions. [2023-01-28 06:30:24,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:24,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 5275 transitions. [2023-01-28 06:30:24,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 109.89583333333333) internal successors, (5275), 48 states have internal predecessors, (5275), 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) [2023-01-28 06:30:24,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 339.0) internal successors, (16611), 49 states have internal predecessors, (16611), 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) [2023-01-28 06:30:24,963 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 339.0) internal successors, (16611), 49 states have internal predecessors, (16611), 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) [2023-01-28 06:30:24,963 INFO L175 Difference]: Start difference. First operand has 137 places, 108 transitions, 673 flow. Second operand 48 states and 5275 transitions. [2023-01-28 06:30:24,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 911 transitions, 6441 flow [2023-01-28 06:30:25,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 911 transitions, 6038 flow, removed 185 selfloop flow, removed 10 redundant places. [2023-01-28 06:30:25,336 INFO L231 Difference]: Finished difference. Result has 185 places, 153 transitions, 1168 flow [2023-01-28 06:30:25,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=1168, PETRI_PLACES=185, PETRI_TRANSITIONS=153} [2023-01-28 06:30:25,336 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 101 predicate places. [2023-01-28 06:30:25,336 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 153 transitions, 1168 flow [2023-01-28 06:30:25,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 98.17647058823529) internal successors, (1669), 17 states have internal predecessors, (1669), 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) [2023-01-28 06:30:25,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:25,337 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:25,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 06:30:25,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:25,544 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:25,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1210816747, now seen corresponding path program 1 times [2023-01-28 06:30:25,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:25,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522223293] [2023-01-28 06:30:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:25,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 06:30:25,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:25,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522223293] [2023-01-28 06:30:25,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522223293] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:30:25,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424345771] [2023-01-28 06:30:25,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:25,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:25,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:30:25,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:30:25,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 06:30:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:25,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-28 06:30:25,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:30:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 06:30:25,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:30:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 06:30:25,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424345771] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:30:25,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:30:25,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 15 [2023-01-28 06:30:25,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030351243] [2023-01-28 06:30:25,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:30:25,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 06:30:25,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:25,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 06:30:25,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-01-28 06:30:25,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 339 [2023-01-28 06:30:25,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 153 transitions, 1168 flow. Second operand has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 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) [2023-01-28 06:30:25,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:25,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 339 [2023-01-28 06:30:25,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:32,068 INFO L130 PetriNetUnfolder]: 18481/31017 cut-off events. [2023-01-28 06:30:32,068 INFO L131 PetriNetUnfolder]: For 181626/181646 co-relation queries the response was YES. [2023-01-28 06:30:32,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132240 conditions, 31017 events. 18481/31017 cut-off events. For 181626/181646 co-relation queries the response was YES. Maximal size of possible extension queue 1645. Compared 275894 event pairs, 2158 based on Foata normal form. 216/31168 useless extension candidates. Maximal degree in co-relation 132186. Up to 8881 conditions per place. [2023-01-28 06:30:32,311 INFO L137 encePairwiseOnDemand]: 314/339 looper letters, 331 selfloop transitions, 65 changer transitions 513/918 dead transitions. [2023-01-28 06:30:32,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 918 transitions, 8688 flow [2023-01-28 06:30:32,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-01-28 06:30:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-01-28 06:30:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4904 transitions. [2023-01-28 06:30:32,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32146837102589315 [2023-01-28 06:30:32,315 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4904 transitions. [2023-01-28 06:30:32,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4904 transitions. [2023-01-28 06:30:32,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:32,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4904 transitions. [2023-01-28 06:30:32,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 108.97777777777777) internal successors, (4904), 45 states have internal predecessors, (4904), 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) [2023-01-28 06:30:32,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 339.0) internal successors, (15594), 46 states have internal predecessors, (15594), 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) [2023-01-28 06:30:32,329 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 339.0) internal successors, (15594), 46 states have internal predecessors, (15594), 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) [2023-01-28 06:30:32,329 INFO L175 Difference]: Start difference. First operand has 185 places, 153 transitions, 1168 flow. Second operand 45 states and 4904 transitions. [2023-01-28 06:30:32,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 918 transitions, 8688 flow [2023-01-28 06:30:33,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 918 transitions, 8206 flow, removed 167 selfloop flow, removed 10 redundant places. [2023-01-28 06:30:33,014 INFO L231 Difference]: Finished difference. Result has 228 places, 170 transitions, 1696 flow [2023-01-28 06:30:33,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1073, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1696, PETRI_PLACES=228, PETRI_TRANSITIONS=170} [2023-01-28 06:30:33,014 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 144 predicate places. [2023-01-28 06:30:33,014 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 170 transitions, 1696 flow [2023-01-28 06:30:33,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 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) [2023-01-28 06:30:33,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:33,015 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:33,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-28 06:30:33,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-01-28 06:30:33,219 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:33,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2127160413, now seen corresponding path program 1 times [2023-01-28 06:30:33,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:33,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090710898] [2023-01-28 06:30:33,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:33,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:33,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:33,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090710898] [2023-01-28 06:30:33,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090710898] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:33,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:33,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 06:30:33,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785479555] [2023-01-28 06:30:33,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:33,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 06:30:33,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:33,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 06:30:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 06:30:33,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 339 [2023-01-28 06:30:33,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 170 transitions, 1696 flow. Second operand has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 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) [2023-01-28 06:30:33,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:33,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 339 [2023-01-28 06:30:33,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:36,674 INFO L130 PetriNetUnfolder]: 12283/21095 cut-off events. [2023-01-28 06:30:36,674 INFO L131 PetriNetUnfolder]: For 285488/285512 co-relation queries the response was YES. [2023-01-28 06:30:36,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106279 conditions, 21095 events. 12283/21095 cut-off events. For 285488/285512 co-relation queries the response was YES. Maximal size of possible extension queue 1105. Compared 182306 event pairs, 3094 based on Foata normal form. 182/21116 useless extension candidates. Maximal degree in co-relation 106210. Up to 8035 conditions per place. [2023-01-28 06:30:36,792 INFO L137 encePairwiseOnDemand]: 327/339 looper letters, 182 selfloop transitions, 19 changer transitions 116/327 dead transitions. [2023-01-28 06:30:36,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 327 transitions, 3601 flow [2023-01-28 06:30:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:30:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:30:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1068 transitions. [2023-01-28 06:30:36,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3500491642084562 [2023-01-28 06:30:36,813 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1068 transitions. [2023-01-28 06:30:36,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1068 transitions. [2023-01-28 06:30:36,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:36,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1068 transitions. [2023-01-28 06:30:36,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.66666666666667) internal successors, (1068), 9 states have internal predecessors, (1068), 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) [2023-01-28 06:30:36,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:36,816 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:36,816 INFO L175 Difference]: Start difference. First operand has 228 places, 170 transitions, 1696 flow. Second operand 9 states and 1068 transitions. [2023-01-28 06:30:36,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 327 transitions, 3601 flow [2023-01-28 06:30:37,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 327 transitions, 3112 flow, removed 188 selfloop flow, removed 19 redundant places. [2023-01-28 06:30:37,764 INFO L231 Difference]: Finished difference. Result has 203 places, 140 transitions, 1183 flow [2023-01-28 06:30:37,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1183, PETRI_PLACES=203, PETRI_TRANSITIONS=140} [2023-01-28 06:30:37,764 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 119 predicate places. [2023-01-28 06:30:37,764 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 140 transitions, 1183 flow [2023-01-28 06:30:37,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 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) [2023-01-28 06:30:37,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:37,765 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:37,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-28 06:30:37,765 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:37,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash 935979761, now seen corresponding path program 1 times [2023-01-28 06:30:37,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:37,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606341564] [2023-01-28 06:30:37,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:37,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:37,846 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:37,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:37,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606341564] [2023-01-28 06:30:37,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606341564] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:37,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:37,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 06:30:37,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347232438] [2023-01-28 06:30:37,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:37,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 06:30:37,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 06:30:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 06:30:37,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 339 [2023-01-28 06:30:37,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 140 transitions, 1183 flow. Second operand has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 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) [2023-01-28 06:30:37,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:37,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 339 [2023-01-28 06:30:37,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:39,366 INFO L130 PetriNetUnfolder]: 6636/11815 cut-off events. [2023-01-28 06:30:39,366 INFO L131 PetriNetUnfolder]: For 142055/142119 co-relation queries the response was YES. [2023-01-28 06:30:39,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58740 conditions, 11815 events. 6636/11815 cut-off events. For 142055/142119 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 98885 event pairs, 1547 based on Foata normal form. 58/11782 useless extension candidates. Maximal degree in co-relation 58681. Up to 5857 conditions per place. [2023-01-28 06:30:39,441 INFO L137 encePairwiseOnDemand]: 329/339 looper letters, 154 selfloop transitions, 19 changer transitions 83/265 dead transitions. [2023-01-28 06:30:39,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 265 transitions, 2662 flow [2023-01-28 06:30:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:30:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:30:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1037 transitions. [2023-01-28 06:30:39,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33988856112749916 [2023-01-28 06:30:39,443 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1037 transitions. [2023-01-28 06:30:39,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1037 transitions. [2023-01-28 06:30:39,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:39,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1037 transitions. [2023-01-28 06:30:39,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 115.22222222222223) internal successors, (1037), 9 states have internal predecessors, (1037), 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) [2023-01-28 06:30:39,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:39,446 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:39,446 INFO L175 Difference]: Start difference. First operand has 203 places, 140 transitions, 1183 flow. Second operand 9 states and 1037 transitions. [2023-01-28 06:30:39,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 265 transitions, 2662 flow [2023-01-28 06:30:39,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 265 transitions, 2581 flow, removed 27 selfloop flow, removed 9 redundant places. [2023-01-28 06:30:39,764 INFO L231 Difference]: Finished difference. Result has 191 places, 114 transitions, 1005 flow [2023-01-28 06:30:39,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1005, PETRI_PLACES=191, PETRI_TRANSITIONS=114} [2023-01-28 06:30:39,765 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 107 predicate places. [2023-01-28 06:30:39,765 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 114 transitions, 1005 flow [2023-01-28 06:30:39,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 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) [2023-01-28 06:30:39,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:39,765 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:39,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-01-28 06:30:39,765 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:39,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:39,765 INFO L85 PathProgramCache]: Analyzing trace with hash -947415669, now seen corresponding path program 1 times [2023-01-28 06:30:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900642050] [2023-01-28 06:30:39,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:39,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:39,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:39,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900642050] [2023-01-28 06:30:39,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900642050] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:30:39,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61492945] [2023-01-28 06:30:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:39,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:39,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:30:39,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:30:39,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 06:30:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:39,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-28 06:30:39,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:30:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:40,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:30:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 06:30:40,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61492945] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:30:40,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:30:40,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2023-01-28 06:30:40,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644959492] [2023-01-28 06:30:40,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:30:40,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-28 06:30:40,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:40,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-28 06:30:40,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2023-01-28 06:30:40,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 339 [2023-01-28 06:30:40,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 114 transitions, 1005 flow. Second operand has 23 states, 23 states have (on average 95.0) internal successors, (2185), 23 states have internal predecessors, (2185), 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) [2023-01-28 06:30:40,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:40,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 339 [2023-01-28 06:30:40,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:42,138 INFO L130 PetriNetUnfolder]: 3712/6924 cut-off events. [2023-01-28 06:30:42,138 INFO L131 PetriNetUnfolder]: For 92404/92404 co-relation queries the response was YES. [2023-01-28 06:30:42,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36599 conditions, 6924 events. 3712/6924 cut-off events. For 92404/92404 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 57214 event pairs, 532 based on Foata normal form. 22/6940 useless extension candidates. Maximal degree in co-relation 36543. Up to 2310 conditions per place. [2023-01-28 06:30:42,168 INFO L137 encePairwiseOnDemand]: 321/339 looper letters, 146 selfloop transitions, 34 changer transitions 144/333 dead transitions. [2023-01-28 06:30:42,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 333 transitions, 3557 flow [2023-01-28 06:30:42,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 06:30:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 06:30:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2432 transitions. [2023-01-28 06:30:42,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29891838741396265 [2023-01-28 06:30:42,171 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2432 transitions. [2023-01-28 06:30:42,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2432 transitions. [2023-01-28 06:30:42,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:42,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2432 transitions. [2023-01-28 06:30:42,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 101.33333333333333) internal successors, (2432), 24 states have internal predecessors, (2432), 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) [2023-01-28 06:30:42,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 339.0) internal successors, (8475), 25 states have internal predecessors, (8475), 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) [2023-01-28 06:30:42,177 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 339.0) internal successors, (8475), 25 states have internal predecessors, (8475), 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) [2023-01-28 06:30:42,177 INFO L175 Difference]: Start difference. First operand has 191 places, 114 transitions, 1005 flow. Second operand 24 states and 2432 transitions. [2023-01-28 06:30:42,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 333 transitions, 3557 flow [2023-01-28 06:30:42,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 333 transitions, 3250 flow, removed 129 selfloop flow, removed 14 redundant places. [2023-01-28 06:30:42,273 INFO L231 Difference]: Finished difference. Result has 184 places, 105 transitions, 984 flow [2023-01-28 06:30:42,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=984, PETRI_PLACES=184, PETRI_TRANSITIONS=105} [2023-01-28 06:30:42,273 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 100 predicate places. [2023-01-28 06:30:42,274 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 105 transitions, 984 flow [2023-01-28 06:30:42,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 95.0) internal successors, (2185), 23 states have internal predecessors, (2185), 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) [2023-01-28 06:30:42,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:42,274 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:42,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 06:30:42,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-01-28 06:30:42,477 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:42,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:42,477 INFO L85 PathProgramCache]: Analyzing trace with hash -636382708, now seen corresponding path program 1 times [2023-01-28 06:30:42,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:42,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457776624] [2023-01-28 06:30:42,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:42,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:42,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:42,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457776624] [2023-01-28 06:30:42,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457776624] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:42,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:42,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 06:30:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888532238] [2023-01-28 06:30:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:42,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 06:30:42,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 06:30:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-01-28 06:30:42,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 339 [2023-01-28 06:30:42,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 105 transitions, 984 flow. Second operand has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:42,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:42,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 339 [2023-01-28 06:30:42,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:43,525 INFO L130 PetriNetUnfolder]: 3113/5807 cut-off events. [2023-01-28 06:30:43,526 INFO L131 PetriNetUnfolder]: For 62114/62134 co-relation queries the response was YES. [2023-01-28 06:30:43,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29170 conditions, 5807 events. 3113/5807 cut-off events. For 62114/62134 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 46697 event pairs, 687 based on Foata normal form. 14/5803 useless extension candidates. Maximal degree in co-relation 29121. Up to 2187 conditions per place. [2023-01-28 06:30:43,556 INFO L137 encePairwiseOnDemand]: 329/339 looper letters, 98 selfloop transitions, 18 changer transitions 98/222 dead transitions. [2023-01-28 06:30:43,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 222 transitions, 2330 flow [2023-01-28 06:30:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-28 06:30:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-01-28 06:30:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1680 transitions. [2023-01-28 06:30:43,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30973451327433627 [2023-01-28 06:30:43,558 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1680 transitions. [2023-01-28 06:30:43,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1680 transitions. [2023-01-28 06:30:43,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:43,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1680 transitions. [2023-01-28 06:30:43,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 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) [2023-01-28 06:30:43,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 339.0) internal successors, (5763), 17 states have internal predecessors, (5763), 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) [2023-01-28 06:30:43,562 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 339.0) internal successors, (5763), 17 states have internal predecessors, (5763), 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) [2023-01-28 06:30:43,562 INFO L175 Difference]: Start difference. First operand has 184 places, 105 transitions, 984 flow. Second operand 16 states and 1680 transitions. [2023-01-28 06:30:43,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 222 transitions, 2330 flow [2023-01-28 06:30:43,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 222 transitions, 2196 flow, removed 31 selfloop flow, removed 19 redundant places. [2023-01-28 06:30:43,618 INFO L231 Difference]: Finished difference. Result has 169 places, 88 transitions, 768 flow [2023-01-28 06:30:43,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=768, PETRI_PLACES=169, PETRI_TRANSITIONS=88} [2023-01-28 06:30:43,619 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 85 predicate places. [2023-01-28 06:30:43,619 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 88 transitions, 768 flow [2023-01-28 06:30:43,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:43,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:43,619 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:43,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-01-28 06:30:43,620 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:43,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:43,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2111583494, now seen corresponding path program 1 times [2023-01-28 06:30:43,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897511390] [2023-01-28 06:30:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:43,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 06:30:43,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:43,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897511390] [2023-01-28 06:30:43,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897511390] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:30:43,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716862899] [2023-01-28 06:30:43,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:43,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:43,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:30:43,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:30:43,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 06:30:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:43,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-28 06:30:43,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:30:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 06:30:43,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:30:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 06:30:44,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716862899] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:30:44,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:30:44,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2023-01-28 06:30:44,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485189382] [2023-01-28 06:30:44,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:30:44,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-28 06:30:44,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:44,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-28 06:30:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2023-01-28 06:30:44,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 339 [2023-01-28 06:30:44,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 88 transitions, 768 flow. Second operand has 23 states, 23 states have (on average 94.8695652173913) internal successors, (2182), 23 states have internal predecessors, (2182), 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) [2023-01-28 06:30:44,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:44,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 339 [2023-01-28 06:30:44,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:45,389 INFO L130 PetriNetUnfolder]: 2400/4475 cut-off events. [2023-01-28 06:30:45,390 INFO L131 PetriNetUnfolder]: For 46232/46232 co-relation queries the response was YES. [2023-01-28 06:30:45,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22123 conditions, 4475 events. 2400/4475 cut-off events. For 46232/46232 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 34585 event pairs, 379 based on Foata normal form. 22/4496 useless extension candidates. Maximal degree in co-relation 22078. Up to 1387 conditions per place. [2023-01-28 06:30:45,411 INFO L137 encePairwiseOnDemand]: 321/339 looper letters, 102 selfloop transitions, 25 changer transitions 146/281 dead transitions. [2023-01-28 06:30:45,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 281 transitions, 2840 flow [2023-01-28 06:30:45,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 06:30:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 06:30:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2403 transitions. [2023-01-28 06:30:45,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29535398230088494 [2023-01-28 06:30:45,413 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2403 transitions. [2023-01-28 06:30:45,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2403 transitions. [2023-01-28 06:30:45,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:45,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2403 transitions. [2023-01-28 06:30:45,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 100.125) internal successors, (2403), 24 states have internal predecessors, (2403), 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) [2023-01-28 06:30:45,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 339.0) internal successors, (8475), 25 states have internal predecessors, (8475), 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) [2023-01-28 06:30:45,419 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 339.0) internal successors, (8475), 25 states have internal predecessors, (8475), 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) [2023-01-28 06:30:45,419 INFO L175 Difference]: Start difference. First operand has 169 places, 88 transitions, 768 flow. Second operand 24 states and 2403 transitions. [2023-01-28 06:30:45,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 281 transitions, 2840 flow [2023-01-28 06:30:45,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 281 transitions, 2542 flow, removed 125 selfloop flow, removed 16 redundant places. [2023-01-28 06:30:45,467 INFO L231 Difference]: Finished difference. Result has 150 places, 71 transitions, 638 flow [2023-01-28 06:30:45,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=638, PETRI_PLACES=150, PETRI_TRANSITIONS=71} [2023-01-28 06:30:45,468 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 66 predicate places. [2023-01-28 06:30:45,468 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 71 transitions, 638 flow [2023-01-28 06:30:45,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 94.8695652173913) internal successors, (2182), 23 states have internal predecessors, (2182), 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) [2023-01-28 06:30:45,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:45,468 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:45,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-01-28 06:30:45,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:30:45,671 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:45,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash 360354572, now seen corresponding path program 2 times [2023-01-28 06:30:45,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:45,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400766834] [2023-01-28 06:30:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:45,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:45,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:45,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400766834] [2023-01-28 06:30:45,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400766834] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:45,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:45,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 06:30:45,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094768784] [2023-01-28 06:30:45,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:45,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 06:30:45,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:45,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 06:30:45,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-01-28 06:30:45,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 339 [2023-01-28 06:30:45,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 71 transitions, 638 flow. Second operand has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:45,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:45,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 339 [2023-01-28 06:30:45,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:46,257 INFO L130 PetriNetUnfolder]: 800/1747 cut-off events. [2023-01-28 06:30:46,257 INFO L131 PetriNetUnfolder]: For 12498/12498 co-relation queries the response was YES. [2023-01-28 06:30:46,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7970 conditions, 1747 events. 800/1747 cut-off events. For 12498/12498 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 12905 event pairs, 96 based on Foata normal form. 16/1763 useless extension candidates. Maximal degree in co-relation 7931. Up to 722 conditions per place. [2023-01-28 06:30:46,264 INFO L137 encePairwiseOnDemand]: 329/339 looper letters, 40 selfloop transitions, 9 changer transitions 83/138 dead transitions. [2023-01-28 06:30:46,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 138 transitions, 1357 flow [2023-01-28 06:30:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-28 06:30:46,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-01-28 06:30:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1541 transitions. [2023-01-28 06:30:46,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3030481809242871 [2023-01-28 06:30:46,265 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1541 transitions. [2023-01-28 06:30:46,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1541 transitions. [2023-01-28 06:30:46,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:46,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1541 transitions. [2023-01-28 06:30:46,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 102.73333333333333) internal successors, (1541), 15 states have internal predecessors, (1541), 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) [2023-01-28 06:30:46,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 339.0) internal successors, (5424), 16 states have internal predecessors, (5424), 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) [2023-01-28 06:30:46,270 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 339.0) internal successors, (5424), 16 states have internal predecessors, (5424), 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) [2023-01-28 06:30:46,270 INFO L175 Difference]: Start difference. First operand has 150 places, 71 transitions, 638 flow. Second operand 15 states and 1541 transitions. [2023-01-28 06:30:46,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 138 transitions, 1357 flow [2023-01-28 06:30:46,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 138 transitions, 1224 flow, removed 35 selfloop flow, removed 22 redundant places. [2023-01-28 06:30:46,284 INFO L231 Difference]: Finished difference. Result has 129 places, 50 transitions, 370 flow [2023-01-28 06:30:46,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=370, PETRI_PLACES=129, PETRI_TRANSITIONS=50} [2023-01-28 06:30:46,285 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 45 predicate places. [2023-01-28 06:30:46,285 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 50 transitions, 370 flow [2023-01-28 06:30:46,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:46,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:46,285 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:46,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-01-28 06:30:46,285 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:46,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash -462805364, now seen corresponding path program 3 times [2023-01-28 06:30:46,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:46,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95539909] [2023-01-28 06:30:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:46,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:46,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:46,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95539909] [2023-01-28 06:30:46,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95539909] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:46,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:46,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 06:30:46,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116723792] [2023-01-28 06:30:46,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:46,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 06:30:46,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:46,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 06:30:46,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-01-28 06:30:46,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 339 [2023-01-28 06:30:46,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 50 transitions, 370 flow. Second operand has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:46,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:46,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 339 [2023-01-28 06:30:46,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:46,713 INFO L130 PetriNetUnfolder]: 304/717 cut-off events. [2023-01-28 06:30:46,713 INFO L131 PetriNetUnfolder]: For 3420/3420 co-relation queries the response was YES. [2023-01-28 06:30:46,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 717 events. 304/717 cut-off events. For 3420/3420 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4757 event pairs, 50 based on Foata normal form. 12/729 useless extension candidates. Maximal degree in co-relation 2916. Up to 371 conditions per place. [2023-01-28 06:30:46,717 INFO L137 encePairwiseOnDemand]: 331/339 looper letters, 34 selfloop transitions, 4 changer transitions 37/81 dead transitions. [2023-01-28 06:30:46,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 81 transitions, 697 flow [2023-01-28 06:30:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 06:30:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 06:30:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1021 transitions. [2023-01-28 06:30:46,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30117994100294987 [2023-01-28 06:30:46,719 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1021 transitions. [2023-01-28 06:30:46,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1021 transitions. [2023-01-28 06:30:46,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:46,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1021 transitions. [2023-01-28 06:30:46,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 102.1) internal successors, (1021), 10 states have internal predecessors, (1021), 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) [2023-01-28 06:30:46,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 339.0) internal successors, (3729), 11 states have internal predecessors, (3729), 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) [2023-01-28 06:30:46,723 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 339.0) internal successors, (3729), 11 states have internal predecessors, (3729), 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) [2023-01-28 06:30:46,723 INFO L175 Difference]: Start difference. First operand has 129 places, 50 transitions, 370 flow. Second operand 10 states and 1021 transitions. [2023-01-28 06:30:46,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 81 transitions, 697 flow [2023-01-28 06:30:46,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 81 transitions, 603 flow, removed 27 selfloop flow, removed 21 redundant places. [2023-01-28 06:30:46,729 INFO L231 Difference]: Finished difference. Result has 95 places, 41 transitions, 238 flow [2023-01-28 06:30:46,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=238, PETRI_PLACES=95, PETRI_TRANSITIONS=41} [2023-01-28 06:30:46,730 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 11 predicate places. [2023-01-28 06:30:46,730 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 41 transitions, 238 flow [2023-01-28 06:30:46,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:46,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:46,730 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:46,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-01-28 06:30:46,730 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 06:30:46,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1444125300, now seen corresponding path program 4 times [2023-01-28 06:30:46,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:46,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409631917] [2023-01-28 06:30:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:46,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 06:30:46,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:46,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409631917] [2023-01-28 06:30:46,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409631917] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:46,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:46,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 06:30:46,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743599923] [2023-01-28 06:30:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:46,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 06:30:46,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:46,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 06:30:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-01-28 06:30:46,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 339 [2023-01-28 06:30:46,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 41 transitions, 238 flow. Second operand has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:46,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:46,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 339 [2023-01-28 06:30:46,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:30:47,016 INFO L130 PetriNetUnfolder]: 132/329 cut-off events. [2023-01-28 06:30:47,016 INFO L131 PetriNetUnfolder]: For 723/723 co-relation queries the response was YES. [2023-01-28 06:30:47,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 329 events. 132/329 cut-off events. For 723/723 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1697 event pairs, 22 based on Foata normal form. 12/341 useless extension candidates. Maximal degree in co-relation 1137. Up to 210 conditions per place. [2023-01-28 06:30:47,017 INFO L137 encePairwiseOnDemand]: 331/339 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2023-01-28 06:30:47,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 55 transitions, 386 flow [2023-01-28 06:30:47,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:30:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:30:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 906 transitions. [2023-01-28 06:30:47,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2969518190757129 [2023-01-28 06:30:47,018 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 906 transitions. [2023-01-28 06:30:47,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 906 transitions. [2023-01-28 06:30:47,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:30:47,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 906 transitions. [2023-01-28 06:30:47,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.66666666666667) internal successors, (906), 9 states have internal predecessors, (906), 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) [2023-01-28 06:30:47,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:47,021 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 339.0) internal successors, (3390), 10 states have internal predecessors, (3390), 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) [2023-01-28 06:30:47,021 INFO L175 Difference]: Start difference. First operand has 95 places, 41 transitions, 238 flow. Second operand 9 states and 906 transitions. [2023-01-28 06:30:47,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 55 transitions, 386 flow [2023-01-28 06:30:47,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 55 transitions, 336 flow, removed 8 selfloop flow, removed 19 redundant places. [2023-01-28 06:30:47,022 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-01-28 06:30:47,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-01-28 06:30:47,023 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-01-28 06:30:47,023 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-01-28 06:30:47,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.44444444444444) internal successors, (886), 9 states have internal predecessors, (886), 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) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2023-01-28 06:30:47,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2023-01-28 06:30:47,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-01-28 06:30:47,025 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:47,027 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-01-28 06:30:47,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 189 transitions, 399 flow [2023-01-28 06:30:47,040 INFO L130 PetriNetUnfolder]: 19/223 cut-off events. [2023-01-28 06:30:47,040 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 06:30:47,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 223 events. 19/223 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 789 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2023-01-28 06:30:47,041 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 189 transitions, 399 flow [2023-01-28 06:30:47,041 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 189 transitions, 399 flow [2023-01-28 06:30:47,041 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:30:47,041 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 189 transitions, 399 flow [2023-01-28 06:30:47,042 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 189 transitions, 399 flow [2023-01-28 06:30:47,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 189 transitions, 399 flow [2023-01-28 06:30:47,053 INFO L130 PetriNetUnfolder]: 19/223 cut-off events. [2023-01-28 06:30:47,053 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 06:30:47,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 223 events. 19/223 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 789 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2023-01-28 06:30:47,060 INFO L119 LiptonReduction]: Number of co-enabled transitions 21306 [2023-01-28 06:30:49,620 INFO L134 LiptonReduction]: Checked pairs total: 83173 [2023-01-28 06:30:49,620 INFO L136 LiptonReduction]: Total number of compositions: 150 [2023-01-28 06:30:49,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 06:30:49,621 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:30:49,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 06:30:49,625 INFO L130 PetriNetUnfolder]: 10/82 cut-off events. [2023-01-28 06:30:49,625 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 06:30:49,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:49,625 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 06:30:49,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:30:49,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1899942690, now seen corresponding path program 1 times [2023-01-28 06:30:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:49,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597297948] [2023-01-28 06:30:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:49,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:30:49,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 06:30:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:30:49,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 06:30:49,637 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 06:30:49,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 06:30:49,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-01-28 06:30:49,638 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 06:30:49,638 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-01-28 06:30:49,638 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 06:30:49,638 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 06:30:49,673 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 06:30:49,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 243 transitions, 518 flow [2023-01-28 06:30:49,697 INFO L130 PetriNetUnfolder]: 25/289 cut-off events. [2023-01-28 06:30:49,697 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 06:30:49,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 289 events. 25/289 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1114 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 231. Up to 10 conditions per place. [2023-01-28 06:30:49,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 243 transitions, 518 flow [2023-01-28 06:30:49,701 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 243 transitions, 518 flow [2023-01-28 06:30:49,701 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:30:49,701 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 231 places, 243 transitions, 518 flow [2023-01-28 06:30:49,701 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 231 places, 243 transitions, 518 flow [2023-01-28 06:30:49,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 243 transitions, 518 flow [2023-01-28 06:30:49,720 INFO L130 PetriNetUnfolder]: 25/289 cut-off events. [2023-01-28 06:30:49,721 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 06:30:49,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 289 events. 25/289 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1114 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 231. Up to 10 conditions per place. [2023-01-28 06:30:49,728 INFO L119 LiptonReduction]: Number of co-enabled transitions 39856 [2023-01-28 06:30:53,027 INFO L134 LiptonReduction]: Checked pairs total: 162151 [2023-01-28 06:30:53,027 INFO L136 LiptonReduction]: Total number of compositions: 189 [2023-01-28 06:30:53,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:30:53,028 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;@2866e0a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:30:53,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-01-28 06:30:53,031 INFO L130 PetriNetUnfolder]: 5/47 cut-off events. [2023-01-28 06:30:53,031 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 06:30:53,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:30:53,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:30:53,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 06:30:53,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:30:53,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1923384770, now seen corresponding path program 1 times [2023-01-28 06:30:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:30:53,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358217247] [2023-01-28 06:30:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:30:53,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:30:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:30:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:30:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:30:53,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358217247] [2023-01-28 06:30:53,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358217247] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:30:53,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:30:53,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:30:53,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994817786] [2023-01-28 06:30:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:30:53,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:30:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:30:53,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:30:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:30:53,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 432 [2023-01-28 06:30:53,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 120 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2023-01-28 06:30:53,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:30:53,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 432 [2023-01-28 06:30:53,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand