/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-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/indexer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 03:40:07,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 03:40:07,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 03:40:07,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 03:40:07,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 03:40:07,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 03:40:07,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 03:40:07,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 03:40:07,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 03:40:07,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 03:40:07,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 03:40:07,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 03:40:07,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 03:40:07,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 03:40:07,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 03:40:07,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 03:40:07,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 03:40:07,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 03:40:07,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 03:40:07,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 03:40:07,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 03:40:07,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 03:40:07,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 03:40:07,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 03:40:07,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 03:40:07,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 03:40:07,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 03:40:07,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 03:40:07,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 03:40:07,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 03:40:07,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 03:40:07,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 03:40:07,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 03:40:07,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 03:40:07,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 03:40:07,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 03:40:07,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 03:40:07,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 03:40:07,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 03:40:07,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 03:40:07,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 03:40:07,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 03:40:07,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 03:40:07,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 03:40:07,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 03:40:07,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 03:40:07,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 03:40:07,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 03:40:07,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 03:40:07,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 03:40:07,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 03:40:07,330 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 03:40:07,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 03:40:07,331 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 03:40:07,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 03:40:07,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 03:40:07,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 03:40:07,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 03:40:07,509 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 03:40:07,509 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 03:40:07,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/indexer.i [2022-01-19 03:40:07,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02d5c8148/4fb9bdbf10bc42fdb622714f3d0ece6b/FLAG72a6c7050 [2022-01-19 03:40:08,007 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 03:40:08,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/indexer.i [2022-01-19 03:40:08,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02d5c8148/4fb9bdbf10bc42fdb622714f3d0ece6b/FLAG72a6c7050 [2022-01-19 03:40:08,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02d5c8148/4fb9bdbf10bc42fdb622714f3d0ece6b [2022-01-19 03:40:08,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 03:40:08,538 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 03:40:08,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 03:40:08,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 03:40:08,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 03:40:08,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:08,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a21afc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08, skipping insertion in model container [2022-01-19 03:40:08,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:08,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 03:40:08,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 03:40:08,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/indexer.i[47556,47569] [2022-01-19 03:40:08,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 03:40:08,897 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 03:40:08,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/indexer.i[47556,47569] [2022-01-19 03:40:08,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 03:40:08,973 INFO L208 MainTranslator]: Completed translation [2022-01-19 03:40:08,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08 WrapperNode [2022-01-19 03:40:08,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 03:40:08,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 03:40:08,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 03:40:08,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 03:40:08,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,019 INFO L137 Inliner]: procedures = 269, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 114 [2022-01-19 03:40:09,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 03:40:09,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 03:40:09,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 03:40:09,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 03:40:09,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 03:40:09,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 03:40:09,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 03:40:09,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 03:40:09,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (1/1) ... [2022-01-19 03:40:09,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 03:40:09,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:09,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 03:40:09,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 03:40:09,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 03:40:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 03:40:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 03:40:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2022-01-19 03:40:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2022-01-19 03:40:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 03:40:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 03:40:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 03:40:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 03:40:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 03:40:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 03:40:09,106 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 03:40:09,228 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 03:40:09,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 03:40:09,432 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 03:40:09,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 03:40:09,439 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-19 03:40:09,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 03:40:09 BoogieIcfgContainer [2022-01-19 03:40:09,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 03:40:09,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 03:40:09,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 03:40:09,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 03:40:09,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 03:40:08" (1/3) ... [2022-01-19 03:40:09,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc04eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 03:40:09, skipping insertion in model container [2022-01-19 03:40:09,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:40:08" (2/3) ... [2022-01-19 03:40:09,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc04eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 03:40:09, skipping insertion in model container [2022-01-19 03:40:09,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 03:40:09" (3/3) ... [2022-01-19 03:40:09,448 INFO L111 eAbstractionObserver]: Analyzing ICFG indexer.i [2022-01-19 03:40:09,451 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 03:40:09,452 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 03:40:09,452 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 03:40:09,489 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,489 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,489 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,489 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,490 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,490 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,490 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,490 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,492 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,492 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,492 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,493 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,494 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,495 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,495 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,498 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,499 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,499 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,499 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,500 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,500 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,500 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,500 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,501 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,502 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,502 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,502 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,503 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,503 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,505 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,505 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,505 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,506 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,506 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,506 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,506 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,507 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,507 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,507 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,507 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,507 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,507 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,508 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,508 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,508 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,508 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,508 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,509 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,510 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,511 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,512 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,513 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,514 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,515 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,515 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,515 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,515 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,516 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,517 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,517 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,517 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,517 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,517 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,517 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,518 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,519 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,519 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,527 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,527 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,527 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,528 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,531 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,531 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,532 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,532 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,532 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,533 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,534 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,535 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,535 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,536 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,536 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,536 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,536 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,536 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,537 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,537 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,537 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,537 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,537 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,537 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,540 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,541 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,542 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,543 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:40:09,548 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 03:40:09,599 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:40:09,605 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:40:09,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:40:09,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 122 transitions, 252 flow [2022-01-19 03:40:09,667 INFO L129 PetriNetUnfolder]: 18/146 cut-off events. [2022-01-19 03:40:09,667 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 03:40:09,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 146 events. 18/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2022-01-19 03:40:09,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 122 transitions, 252 flow [2022-01-19 03:40:09,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 117 transitions, 239 flow [2022-01-19 03:40:09,689 INFO L129 PetriNetUnfolder]: 13/111 cut-off events. [2022-01-19 03:40:09,689 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:40:09,689 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:09,690 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:09,690 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:09,702 INFO L85 PathProgramCache]: Analyzing trace with hash -23941632, now seen corresponding path program 1 times [2022-01-19 03:40:09,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:09,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620425764] [2022-01-19 03:40:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:09,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:09,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:09,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620425764] [2022-01-19 03:40:09,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620425764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:40:09,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:40:09,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:40:09,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225189152] [2022-01-19 03:40:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:40:09,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:40:09,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:09,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:40:09,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:40:09,949 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 122 [2022-01-19 03:40:09,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 117 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:09,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:09,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 122 [2022-01-19 03:40:09,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:10,026 INFO L129 PetriNetUnfolder]: 4/105 cut-off events. [2022-01-19 03:40:10,026 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:40:10,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 8/107 useless extension candidates. Maximal degree in co-relation 72. Up to 14 conditions per place. [2022-01-19 03:40:10,027 INFO L132 encePairwiseOnDemand]: 107/122 looper letters, 21 selfloop transitions, 5 changer transitions 3/103 dead transitions. [2022-01-19 03:40:10,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 103 transitions, 263 flow [2022-01-19 03:40:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:40:10,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:40:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2022-01-19 03:40:10,048 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8114754098360656 [2022-01-19 03:40:10,048 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2022-01-19 03:40:10,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2022-01-19 03:40:10,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:10,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2022-01-19 03:40:10,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,062 INFO L186 Difference]: Start difference. First operand has 107 places, 117 transitions, 239 flow. Second operand 3 states and 297 transitions. [2022-01-19 03:40:10,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 103 transitions, 263 flow [2022-01-19 03:40:10,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 263 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:40:10,086 INFO L242 Difference]: Finished difference. Result has 98 places, 94 transitions, 214 flow [2022-01-19 03:40:10,087 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=98, PETRI_TRANSITIONS=94} [2022-01-19 03:40:10,090 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, -9 predicate places. [2022-01-19 03:40:10,090 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 94 transitions, 214 flow [2022-01-19 03:40:10,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,090 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:10,090 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:10,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 03:40:10,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:10,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2099698045, now seen corresponding path program 1 times [2022-01-19 03:40:10,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:10,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928893086] [2022-01-19 03:40:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:10,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:10,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:10,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928893086] [2022-01-19 03:40:10,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928893086] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:10,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917883142] [2022-01-19 03:40:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:10,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:10,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:10,194 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) [2022-01-19 03:40:10,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 03:40:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:10,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:40:10,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:10,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:40:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:10,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917883142] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:40:10,526 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:40:10,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:40:10,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947103967] [2022-01-19 03:40:10,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:40:10,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:40:10,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:40:10,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:40:10,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2022-01-19 03:40:10,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 94 transitions, 214 flow. Second operand has 10 states, 10 states have (on average 86.6) internal successors, (866), 10 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:10,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2022-01-19 03:40:10,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:10,651 INFO L129 PetriNetUnfolder]: 4/109 cut-off events. [2022-01-19 03:40:10,651 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 03:40:10,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 109 events. 4/109 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 2/108 useless extension candidates. Maximal degree in co-relation 78. Up to 12 conditions per place. [2022-01-19 03:40:10,655 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 21 selfloop transitions, 13 changer transitions 0/107 dead transitions. [2022-01-19 03:40:10,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 107 transitions, 310 flow [2022-01-19 03:40:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 03:40:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 03:40:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 876 transitions. [2022-01-19 03:40:10,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7180327868852459 [2022-01-19 03:40:10,661 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 876 transitions. [2022-01-19 03:40:10,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 876 transitions. [2022-01-19 03:40:10,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:10,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 876 transitions. [2022-01-19 03:40:10,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.6) internal successors, (876), 10 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,670 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,670 INFO L186 Difference]: Start difference. First operand has 98 places, 94 transitions, 214 flow. Second operand 10 states and 876 transitions. [2022-01-19 03:40:10,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 107 transitions, 310 flow [2022-01-19 03:40:10,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 107 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:40:10,673 INFO L242 Difference]: Finished difference. Result has 106 places, 101 transitions, 275 flow [2022-01-19 03:40:10,674 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2022-01-19 03:40:10,674 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, -1 predicate places. [2022-01-19 03:40:10,674 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 275 flow [2022-01-19 03:40:10,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.6) internal successors, (866), 10 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:10,675 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:10,676 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:10,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:10,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:10,892 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:10,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:10,892 INFO L85 PathProgramCache]: Analyzing trace with hash 687896739, now seen corresponding path program 2 times [2022-01-19 03:40:10,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:10,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124953958] [2022-01-19 03:40:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:10,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:10,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124953958] [2022-01-19 03:40:10,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124953958] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757892944] [2022-01-19 03:40:10,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 03:40:10,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:10,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:10,990 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) [2022-01-19 03:40:10,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 03:40:11,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 03:40:11,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:40:11,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-19 03:40:11,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:11,155 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 03:40:11,156 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 03:40:11,308 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:40:11,350 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-19 03:40:11,450 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:40:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-19 03:40:11,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:40:11,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757892944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:40:11,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:40:11,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2022-01-19 03:40:11,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337818061] [2022-01-19 03:40:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:40:11,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-19 03:40:11,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:11,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-19 03:40:11,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-01-19 03:40:11,695 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 122 [2022-01-19 03:40:11,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 275 flow. Second operand has 16 states, 16 states have (on average 51.5625) internal successors, (825), 16 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:11,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:11,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 122 [2022-01-19 03:40:11,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:12,869 INFO L129 PetriNetUnfolder]: 278/876 cut-off events. [2022-01-19 03:40:12,869 INFO L130 PetriNetUnfolder]: For 307/307 co-relation queries the response was YES. [2022-01-19 03:40:12,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1761 conditions, 876 events. 278/876 cut-off events. For 307/307 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4127 event pairs, 53 based on Foata normal form. 0/827 useless extension candidates. Maximal degree in co-relation 1658. Up to 250 conditions per place. [2022-01-19 03:40:12,873 INFO L132 encePairwiseOnDemand]: 97/122 looper letters, 130 selfloop transitions, 73 changer transitions 0/246 dead transitions. [2022-01-19 03:40:12,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 246 transitions, 1123 flow [2022-01-19 03:40:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 03:40:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 03:40:12,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1869 transitions. [2022-01-19 03:40:12,877 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4505785920925747 [2022-01-19 03:40:12,877 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 1869 transitions. [2022-01-19 03:40:12,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 1869 transitions. [2022-01-19 03:40:12,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:12,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 1869 transitions. [2022-01-19 03:40:12,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 54.970588235294116) internal successors, (1869), 34 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:12,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:12,886 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:12,886 INFO L186 Difference]: Start difference. First operand has 106 places, 101 transitions, 275 flow. Second operand 34 states and 1869 transitions. [2022-01-19 03:40:12,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 246 transitions, 1123 flow [2022-01-19 03:40:12,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 246 transitions, 1094 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 03:40:12,891 INFO L242 Difference]: Finished difference. Result has 141 places, 171 transitions, 675 flow [2022-01-19 03:40:12,891 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=675, PETRI_PLACES=141, PETRI_TRANSITIONS=171} [2022-01-19 03:40:12,892 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 34 predicate places. [2022-01-19 03:40:12,892 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 171 transitions, 675 flow [2022-01-19 03:40:12,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 51.5625) internal successors, (825), 16 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:12,892 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:12,892 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:12,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:13,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-19 03:40:13,124 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:13,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:13,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1784193998, now seen corresponding path program 1 times [2022-01-19 03:40:13,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:13,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186284403] [2022-01-19 03:40:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:13,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:13,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:13,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186284403] [2022-01-19 03:40:13,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186284403] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:13,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352763446] [2022-01-19 03:40:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:13,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:13,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:13,198 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) [2022-01-19 03:40:13,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 03:40:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:13,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 03:40:13,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:13,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:40:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:13,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352763446] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:40:13,462 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:40:13,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 03:40:13,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664474445] [2022-01-19 03:40:13,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:40:13,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 03:40:13,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 03:40:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-19 03:40:13,464 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2022-01-19 03:40:13,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 171 transitions, 675 flow. Second operand has 18 states, 18 states have (on average 86.61111111111111) internal successors, (1559), 18 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:13,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:13,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2022-01-19 03:40:13,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:13,653 INFO L129 PetriNetUnfolder]: 77/430 cut-off events. [2022-01-19 03:40:13,653 INFO L130 PetriNetUnfolder]: For 302/340 co-relation queries the response was YES. [2022-01-19 03:40:13,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 430 events. 77/430 cut-off events. For 302/340 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1568 event pairs, 10 based on Foata normal form. 31/442 useless extension candidates. Maximal degree in co-relation 755. Up to 52 conditions per place. [2022-01-19 03:40:13,656 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 53 selfloop transitions, 35 changer transitions 0/196 dead transitions. [2022-01-19 03:40:13,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 196 transitions, 955 flow [2022-01-19 03:40:13,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 03:40:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 03:40:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1906 transitions. [2022-01-19 03:40:13,660 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.710134128166915 [2022-01-19 03:40:13,660 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1906 transitions. [2022-01-19 03:40:13,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1906 transitions. [2022-01-19 03:40:13,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:13,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1906 transitions. [2022-01-19 03:40:13,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 86.63636363636364) internal successors, (1906), 22 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:13,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 122.0) internal successors, (2806), 23 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:13,670 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 122.0) internal successors, (2806), 23 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:13,670 INFO L186 Difference]: Start difference. First operand has 141 places, 171 transitions, 675 flow. Second operand 22 states and 1906 transitions. [2022-01-19 03:40:13,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 196 transitions, 955 flow [2022-01-19 03:40:13,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 196 transitions, 928 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-01-19 03:40:13,678 INFO L242 Difference]: Finished difference. Result has 164 places, 184 transitions, 820 flow [2022-01-19 03:40:13,678 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=820, PETRI_PLACES=164, PETRI_TRANSITIONS=184} [2022-01-19 03:40:13,679 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 57 predicate places. [2022-01-19 03:40:13,679 INFO L470 AbstractCegarLoop]: Abstraction has has 164 places, 184 transitions, 820 flow [2022-01-19 03:40:13,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 86.61111111111111) internal successors, (1559), 18 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:13,680 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:13,680 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:13,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:13,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:13,895 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:13,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:13,896 INFO L85 PathProgramCache]: Analyzing trace with hash -540143730, now seen corresponding path program 2 times [2022-01-19 03:40:13,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:13,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537649901] [2022-01-19 03:40:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:13,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:40:14,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:14,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537649901] [2022-01-19 03:40:14,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537649901] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:14,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22253355] [2022-01-19 03:40:14,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 03:40:14,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:14,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:14,038 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) [2022-01-19 03:40:14,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 03:40:14,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 03:40:14,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:40:14,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-19 03:40:14,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:14,189 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 03:40:14,189 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 03:40:14,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:40:14,466 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-19 03:40:14,566 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:40:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-19 03:40:14,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:40:14,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22253355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:40:14,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:40:14,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [17] total 31 [2022-01-19 03:40:14,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619868829] [2022-01-19 03:40:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:40:14,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-19 03:40:14,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-19 03:40:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2022-01-19 03:40:14,816 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 122 [2022-01-19 03:40:14,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 184 transitions, 820 flow. Second operand has 16 states, 16 states have (on average 51.625) internal successors, (826), 16 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) [2022-01-19 03:40:14,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:14,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 122 [2022-01-19 03:40:14,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:15,967 INFO L129 PetriNetUnfolder]: 272/882 cut-off events. [2022-01-19 03:40:15,967 INFO L130 PetriNetUnfolder]: For 878/882 co-relation queries the response was YES. [2022-01-19 03:40:15,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2367 conditions, 882 events. 272/882 cut-off events. For 878/882 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4034 event pairs, 51 based on Foata normal form. 7/861 useless extension candidates. Maximal degree in co-relation 2161. Up to 250 conditions per place. [2022-01-19 03:40:15,971 INFO L132 encePairwiseOnDemand]: 98/122 looper letters, 139 selfloop transitions, 77 changer transitions 0/263 dead transitions. [2022-01-19 03:40:15,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 263 transitions, 1647 flow [2022-01-19 03:40:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 03:40:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 03:40:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1866 transitions. [2022-01-19 03:40:15,975 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.44985535197685633 [2022-01-19 03:40:15,975 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 1866 transitions. [2022-01-19 03:40:15,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 1866 transitions. [2022-01-19 03:40:15,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:15,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 1866 transitions. [2022-01-19 03:40:15,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 54.88235294117647) internal successors, (1866), 34 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:15,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:15,983 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:15,983 INFO L186 Difference]: Start difference. First operand has 164 places, 184 transitions, 820 flow. Second operand 34 states and 1866 transitions. [2022-01-19 03:40:15,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 263 transitions, 1647 flow [2022-01-19 03:40:15,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 263 transitions, 1599 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-01-19 03:40:15,989 INFO L242 Difference]: Finished difference. Result has 193 places, 189 transitions, 988 flow [2022-01-19 03:40:15,990 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=988, PETRI_PLACES=193, PETRI_TRANSITIONS=189} [2022-01-19 03:40:15,990 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 86 predicate places. [2022-01-19 03:40:15,990 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 189 transitions, 988 flow [2022-01-19 03:40:15,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 51.625) internal successors, (826), 16 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) [2022-01-19 03:40:15,991 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:15,991 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:16,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:16,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:16,203 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:16,204 INFO L85 PathProgramCache]: Analyzing trace with hash -693266884, now seen corresponding path program 1 times [2022-01-19 03:40:16,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:16,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232346489] [2022-01-19 03:40:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:16,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:16,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:16,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232346489] [2022-01-19 03:40:16,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232346489] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:16,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232539386] [2022-01-19 03:40:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:16,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:16,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:16,340 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) [2022-01-19 03:40:16,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 03:40:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:16,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-19 03:40:16,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:16,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:40:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:16,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232539386] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:40:16,788 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:40:16,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-19 03:40:16,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544622558] [2022-01-19 03:40:16,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:40:16,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-19 03:40:16,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:16,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-19 03:40:16,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-19 03:40:16,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2022-01-19 03:40:16,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 189 transitions, 988 flow. Second operand has 34 states, 34 states have (on average 86.58823529411765) internal successors, (2944), 34 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:16,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:16,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2022-01-19 03:40:16,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:17,256 INFO L129 PetriNetUnfolder]: 76/469 cut-off events. [2022-01-19 03:40:17,256 INFO L130 PetriNetUnfolder]: For 823/867 co-relation queries the response was YES. [2022-01-19 03:40:17,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1282 conditions, 469 events. 76/469 cut-off events. For 823/867 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1572 event pairs, 10 based on Foata normal form. 35/486 useless extension candidates. Maximal degree in co-relation 1024. Up to 52 conditions per place. [2022-01-19 03:40:17,259 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 72 selfloop transitions, 60 changer transitions 0/241 dead transitions. [2022-01-19 03:40:17,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 241 transitions, 1556 flow [2022-01-19 03:40:17,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-19 03:40:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-01-19 03:40:17,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3966 transitions. [2022-01-19 03:40:17,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7066999287241625 [2022-01-19 03:40:17,263 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3966 transitions. [2022-01-19 03:40:17,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3966 transitions. [2022-01-19 03:40:17,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:17,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3966 transitions. [2022-01-19 03:40:17,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 86.21739130434783) internal successors, (3966), 46 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:17,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 122.0) internal successors, (5734), 47 states have internal predecessors, (5734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:17,275 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 122.0) internal successors, (5734), 47 states have internal predecessors, (5734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:17,275 INFO L186 Difference]: Start difference. First operand has 193 places, 189 transitions, 988 flow. Second operand 46 states and 3966 transitions. [2022-01-19 03:40:17,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 241 transitions, 1556 flow [2022-01-19 03:40:17,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 241 transitions, 1427 flow, removed 1 selfloop flow, removed 30 redundant places. [2022-01-19 03:40:17,283 INFO L242 Difference]: Finished difference. Result has 217 places, 214 transitions, 1206 flow [2022-01-19 03:40:17,283 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=1206, PETRI_PLACES=217, PETRI_TRANSITIONS=214} [2022-01-19 03:40:17,284 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 110 predicate places. [2022-01-19 03:40:17,284 INFO L470 AbstractCegarLoop]: Abstraction has has 217 places, 214 transitions, 1206 flow [2022-01-19 03:40:17,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 86.58823529411765) internal successors, (2944), 34 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:17,285 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:17,285 INFO L254 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:17,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:17,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:17,497 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:17,497 INFO L85 PathProgramCache]: Analyzing trace with hash -180355146, now seen corresponding path program 2 times [2022-01-19 03:40:17,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:17,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993136889] [2022-01-19 03:40:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:17,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:17,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:17,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993136889] [2022-01-19 03:40:17,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993136889] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:17,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680016532] [2022-01-19 03:40:17,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 03:40:17,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:17,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:17,826 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) [2022-01-19 03:40:17,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 03:40:17,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 03:40:17,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:40:17,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-19 03:40:17,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:18,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:40:18,898 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:18,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680016532] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:40:18,898 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:40:18,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-01-19 03:40:18,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304702980] [2022-01-19 03:40:18,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:40:18,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-01-19 03:40:18,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:18,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-01-19 03:40:18,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-01-19 03:40:18,903 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2022-01-19 03:40:18,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 214 transitions, 1206 flow. Second operand has 66 states, 66 states have (on average 86.54545454545455) internal successors, (5712), 66 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:18,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:18,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2022-01-19 03:40:18,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:20,312 INFO L129 PetriNetUnfolder]: 76/541 cut-off events. [2022-01-19 03:40:20,312 INFO L130 PetriNetUnfolder]: For 2759/2803 co-relation queries the response was YES. [2022-01-19 03:40:20,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1706 conditions, 541 events. 76/541 cut-off events. For 2759/2803 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1507 event pairs, 10 based on Foata normal form. 43/566 useless extension candidates. Maximal degree in co-relation 1414. Up to 68 conditions per place. [2022-01-19 03:40:20,315 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 104 selfloop transitions, 108 changer transitions 0/321 dead transitions. [2022-01-19 03:40:20,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 321 transitions, 2482 flow [2022-01-19 03:40:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-19 03:40:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2022-01-19 03:40:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 8002 transitions. [2022-01-19 03:40:20,321 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.705270579940067 [2022-01-19 03:40:20,321 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 8002 transitions. [2022-01-19 03:40:20,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 8002 transitions. [2022-01-19 03:40:20,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:20,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 8002 transitions. [2022-01-19 03:40:20,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 86.04301075268818) internal successors, (8002), 93 states have internal predecessors, (8002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:20,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 122.0) internal successors, (11468), 94 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:20,342 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 122.0) internal successors, (11468), 94 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:20,342 INFO L186 Difference]: Start difference. First operand has 217 places, 214 transitions, 1206 flow. Second operand 93 states and 8002 transitions. [2022-01-19 03:40:20,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 321 transitions, 2482 flow [2022-01-19 03:40:20,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 321 transitions, 2380 flow, removed 26 selfloop flow, removed 18 redundant places. [2022-01-19 03:40:20,353 INFO L242 Difference]: Finished difference. Result has 308 places, 263 transitions, 1871 flow [2022-01-19 03:40:20,353 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=1871, PETRI_PLACES=308, PETRI_TRANSITIONS=263} [2022-01-19 03:40:20,354 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 201 predicate places. [2022-01-19 03:40:20,354 INFO L470 AbstractCegarLoop]: Abstraction has has 308 places, 263 transitions, 1871 flow [2022-01-19 03:40:20,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 86.54545454545455) internal successors, (5712), 66 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:20,355 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:20,355 INFO L254 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:20,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:20,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:20,573 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:20,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash -85872246, now seen corresponding path program 3 times [2022-01-19 03:40:20,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:20,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770488246] [2022-01-19 03:40:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:20,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2358 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:21,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:21,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770488246] [2022-01-19 03:40:21,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770488246] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:21,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365110668] [2022-01-19 03:40:21,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 03:40:21,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:21,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:21,613 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) [2022-01-19 03:40:21,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 03:40:21,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 03:40:21,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:40:21,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-19 03:40:21,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:21,799 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 03:40:21,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 03:40:22,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:40:22,765 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-19 03:40:22,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:40:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2358 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2356 trivial. 0 not checked. [2022-01-19 03:40:23,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:40:24,250 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_424 (Array Int Int)) (|v_thread_routineThread1of1ForFork0_~w~0#1_23| Int) (|v_thread_routineThread1of1ForFork0_#t~pre6#1_22| Int)) (let ((.cse0 (* 7 |v_thread_routineThread1of1ForFork0_~w~0#1_23|))) (or (<= 0 .cse0) (< |v_thread_routineThread1of1ForFork0_~w~0#1_23| (+ (* |v_thread_routineThread1of1ForFork0_#t~pre6#1_22| 11) (select (select (store |c_#memory_int| |c_~#tids~0.base| v_ArrVal_424) |c_ULTIMATE.start_main_~#arg~0#1.base|) |c_ULTIMATE.start_main_~#arg~0#1.offset|))) (= (mod .cse0 128) 0) (< |v_thread_routineThread1of1ForFork0_#t~pre6#1_22| 1)))) is different from false [2022-01-19 03:40:24,356 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 03:40:24,356 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-01-19 03:40:24,366 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2022-01-19 03:40:24,369 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-01-19 03:40:24,954 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-19 03:40:24,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2022-01-19 03:40:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2358 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2356 trivial. 0 not checked. [2022-01-19 03:40:24,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365110668] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:40:24,967 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:40:24,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 16, 16] total 92 [2022-01-19 03:40:24,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173273506] [2022-01-19 03:40:24,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:40:24,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-01-19 03:40:24,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:24,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-01-19 03:40:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1168, Invalid=7025, Unknown=1, NotChecked=178, Total=8372 [2022-01-19 03:40:24,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 122 [2022-01-19 03:40:24,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 263 transitions, 1871 flow. Second operand has 92 states, 92 states have (on average 50.90217391304348) internal successors, (4683), 92 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:24,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:24,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 122 [2022-01-19 03:40:24,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:32,474 INFO L129 PetriNetUnfolder]: 555/2180 cut-off events. [2022-01-19 03:40:32,474 INFO L130 PetriNetUnfolder]: For 4671/4673 co-relation queries the response was YES. [2022-01-19 03:40:32,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6051 conditions, 2180 events. 555/2180 cut-off events. For 4671/4673 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12825 event pairs, 19 based on Foata normal form. 6/2110 useless extension candidates. Maximal degree in co-relation 5625. Up to 267 conditions per place. [2022-01-19 03:40:32,489 INFO L132 encePairwiseOnDemand]: 92/122 looper letters, 364 selfloop transitions, 246 changer transitions 0/650 dead transitions. [2022-01-19 03:40:32,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 650 transitions, 5138 flow [2022-01-19 03:40:32,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-01-19 03:40:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2022-01-19 03:40:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 7954 transitions. [2022-01-19 03:40:32,499 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4233553331913988 [2022-01-19 03:40:32,499 INFO L72 ComplementDD]: Start complementDD. Operand 154 states and 7954 transitions. [2022-01-19 03:40:32,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 7954 transitions. [2022-01-19 03:40:32,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:32,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 154 states and 7954 transitions. [2022-01-19 03:40:32,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 155 states, 154 states have (on average 51.64935064935065) internal successors, (7954), 154 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:32,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 155 states, 155 states have (on average 122.0) internal successors, (18910), 155 states have internal predecessors, (18910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:32,541 INFO L81 ComplementDD]: Finished complementDD. Result has 155 states, 155 states have (on average 122.0) internal successors, (18910), 155 states have internal predecessors, (18910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:32,541 INFO L186 Difference]: Start difference. First operand has 308 places, 263 transitions, 1871 flow. Second operand 154 states and 7954 transitions. [2022-01-19 03:40:32,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 650 transitions, 5138 flow [2022-01-19 03:40:32,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 650 transitions, 4965 flow, removed 19 selfloop flow, removed 42 redundant places. [2022-01-19 03:40:32,566 INFO L242 Difference]: Finished difference. Result has 450 places, 384 transitions, 3272 flow [2022-01-19 03:40:32,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1736, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=154, PETRI_FLOW=3272, PETRI_PLACES=450, PETRI_TRANSITIONS=384} [2022-01-19 03:40:32,569 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 343 predicate places. [2022-01-19 03:40:32,569 INFO L470 AbstractCegarLoop]: Abstraction has has 450 places, 384 transitions, 3272 flow [2022-01-19 03:40:32,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 50.90217391304348) internal successors, (4683), 92 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:32,570 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:32,570 INFO L254 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:32,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-19 03:40:32,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:32,789 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:32,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:32,790 INFO L85 PathProgramCache]: Analyzing trace with hash -327596723, now seen corresponding path program 4 times [2022-01-19 03:40:32,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:32,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175928420] [2022-01-19 03:40:32,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:32,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 0 proven. 2512 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:33,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:33,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175928420] [2022-01-19 03:40:33,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175928420] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:33,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346605527] [2022-01-19 03:40:33,832 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 03:40:33,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:33,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:33,833 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:40:33,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 03:40:33,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 03:40:33,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:40:33,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 66 conjunts are in the unsatisfiable core [2022-01-19 03:40:33,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:40:34,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 0 proven. 2512 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:34,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:40:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 0 proven. 2512 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:37,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346605527] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:40:37,039 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:40:37,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 134 [2022-01-19 03:40:37,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323932367] [2022-01-19 03:40:37,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:40:37,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-01-19 03:40:37,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:40:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-01-19 03:40:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4556, Invalid=13266, Unknown=0, NotChecked=0, Total=17822 [2022-01-19 03:40:37,048 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2022-01-19 03:40:37,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 384 transitions, 3272 flow. Second operand has 134 states, 134 states have (on average 86.5223880597015) internal successors, (11594), 134 states have internal predecessors, (11594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:37,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:40:37,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2022-01-19 03:40:37,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:40:42,479 INFO L129 PetriNetUnfolder]: 230/1746 cut-off events. [2022-01-19 03:40:42,480 INFO L130 PetriNetUnfolder]: For 22719/22770 co-relation queries the response was YES. [2022-01-19 03:40:42,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5727 conditions, 1746 events. 230/1746 cut-off events. For 22719/22770 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9139 event pairs, 11 based on Foata normal form. 37/1714 useless extension candidates. Maximal degree in co-relation 5613. Up to 179 conditions per place. [2022-01-19 03:40:42,495 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 188 selfloop transitions, 240 changer transitions 0/607 dead transitions. [2022-01-19 03:40:42,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 607 transitions, 6458 flow [2022-01-19 03:40:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-01-19 03:40:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2022-01-19 03:40:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 16757 transitions. [2022-01-19 03:40:42,505 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7043715846994536 [2022-01-19 03:40:42,506 INFO L72 ComplementDD]: Start complementDD. Operand 195 states and 16757 transitions. [2022-01-19 03:40:42,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 16757 transitions. [2022-01-19 03:40:42,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:40:42,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 195 states and 16757 transitions. [2022-01-19 03:40:42,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 196 states, 195 states have (on average 85.93333333333334) internal successors, (16757), 195 states have internal predecessors, (16757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:42,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 196 states, 196 states have (on average 122.0) internal successors, (23912), 196 states have internal predecessors, (23912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:42,546 INFO L81 ComplementDD]: Finished complementDD. Result has 196 states, 196 states have (on average 122.0) internal successors, (23912), 196 states have internal predecessors, (23912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:42,546 INFO L186 Difference]: Start difference. First operand has 450 places, 384 transitions, 3272 flow. Second operand 195 states and 16757 transitions. [2022-01-19 03:40:42,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 607 transitions, 6458 flow [2022-01-19 03:40:42,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 607 transitions, 6105 flow, removed 41 selfloop flow, removed 120 redundant places. [2022-01-19 03:40:42,584 INFO L242 Difference]: Finished difference. Result has 558 places, 483 transitions, 4838 flow [2022-01-19 03:40:42,584 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=2919, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=195, PETRI_FLOW=4838, PETRI_PLACES=558, PETRI_TRANSITIONS=483} [2022-01-19 03:40:42,585 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 451 predicate places. [2022-01-19 03:40:42,585 INFO L470 AbstractCegarLoop]: Abstraction has has 558 places, 483 transitions, 4838 flow [2022-01-19 03:40:42,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 86.5223880597015) internal successors, (11594), 134 states have internal predecessors, (11594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:40:42,587 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:40:42,587 INFO L254 CegarLoopForPetriNet]: trace histogram [65, 65, 65, 65, 65, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:40:42,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 03:40:42,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-01-19 03:40:42,804 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:40:42,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:40:42,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1460921060, now seen corresponding path program 5 times [2022-01-19 03:40:42,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:40:42,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497992021] [2022-01-19 03:40:42,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:40:42,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:40:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:40:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10467 backedges. 0 proven. 10465 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:40:46,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:40:46,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497992021] [2022-01-19 03:40:46,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497992021] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:40:46,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884387087] [2022-01-19 03:40:46,693 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 03:40:46,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:40:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:40:46,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:40:46,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-19 03:45:18,323 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2022-01-19 03:45:18,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:45:18,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 132 conjunts are in the unsatisfiable core [2022-01-19 03:45:18,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:45:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10467 backedges. 0 proven. 10465 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:45:19,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:45:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 10467 backedges. 0 proven. 10465 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 03:45:28,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884387087] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:45:28,161 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:45:28,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133, 133] total 259 [2022-01-19 03:45:28,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637439482] [2022-01-19 03:45:28,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:45:28,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2022-01-19 03:45:28,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:45:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2022-01-19 03:45:28,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16899, Invalid=49923, Unknown=0, NotChecked=0, Total=66822 [2022-01-19 03:45:28,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2022-01-19 03:45:28,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 483 transitions, 4838 flow. Second operand has 259 states, 259 states have (on average 86.52123552123552) internal successors, (22409), 259 states have internal predecessors, (22409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:28,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:45:28,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2022-01-19 03:45:28,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:45:48,754 INFO L129 PetriNetUnfolder]: 230/2060 cut-off events. [2022-01-19 03:45:48,755 INFO L130 PetriNetUnfolder]: For 57838/57889 co-relation queries the response was YES. [2022-01-19 03:45:48,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8475 conditions, 2060 events. 230/2060 cut-off events. For 57838/57889 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9108 event pairs, 11 based on Foata normal form. 67/2058 useless extension candidates. Maximal degree in co-relation 8355. Up to 252 conditions per place. [2022-01-19 03:45:48,774 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 314 selfloop transitions, 429 changer transitions 0/922 dead transitions. [2022-01-19 03:45:48,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 922 transitions, 11878 flow [2022-01-19 03:45:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-01-19 03:45:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2022-01-19 03:45:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 32978 transitions. [2022-01-19 03:45:48,793 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7039361338797814 [2022-01-19 03:45:48,793 INFO L72 ComplementDD]: Start complementDD. Operand 384 states and 32978 transitions. [2022-01-19 03:45:48,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 384 states and 32978 transitions. [2022-01-19 03:45:48,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:45:48,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 384 states and 32978 transitions. [2022-01-19 03:45:48,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 385 states, 384 states have (on average 85.88020833333333) internal successors, (32978), 384 states have internal predecessors, (32978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:48,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 385 states, 385 states have (on average 122.0) internal successors, (46970), 385 states have internal predecessors, (46970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:48,887 INFO L81 ComplementDD]: Finished complementDD. Result has 385 states, 385 states have (on average 122.0) internal successors, (46970), 385 states have internal predecessors, (46970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:48,887 INFO L186 Difference]: Start difference. First operand has 558 places, 483 transitions, 4838 flow. Second operand 384 states and 32978 transitions. [2022-01-19 03:45:48,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 922 transitions, 11878 flow [2022-01-19 03:45:48,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 845 places, 922 transitions, 10867 flow, removed 387 selfloop flow, removed 96 redundant places. [2022-01-19 03:45:49,000 INFO L242 Difference]: Finished difference. Result has 909 places, 673 transitions, 7912 flow [2022-01-19 03:45:49,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=4331, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=384, PETRI_FLOW=7912, PETRI_PLACES=909, PETRI_TRANSITIONS=673} [2022-01-19 03:45:49,001 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 802 predicate places. [2022-01-19 03:45:49,002 INFO L470 AbstractCegarLoop]: Abstraction has has 909 places, 673 transitions, 7912 flow [2022-01-19 03:45:49,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 259 states, 259 states have (on average 86.52123552123552) internal successors, (22409), 259 states have internal predecessors, (22409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:49,005 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:45:49,005 INFO L254 CegarLoopForPetriNet]: trace histogram [128, 128, 128, 128, 128, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:45:49,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-01-19 03:45:49,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-19 03:45:49,211 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:45:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:45:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash 102296703, now seen corresponding path program 6 times [2022-01-19 03:45:49,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:45:49,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974653976] [2022-01-19 03:45:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:45:49,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:45:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:45:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:45:49,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:45:49,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974653976] [2022-01-19 03:45:49,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974653976] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:45:49,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139332725] [2022-01-19 03:45:49,695 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-19 03:45:49,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:45:49,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:45:49,697 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:45:49,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-19 03:45:49,843 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-19 03:45:49,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:45:49,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-19 03:45:49,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:45:50,909 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:45:50,930 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:45:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:45:51,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:45:51,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139332725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:45:51,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:45:51,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2022-01-19 03:45:51,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046418370] [2022-01-19 03:45:51,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:45:51,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:45:51,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:45:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:45:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-01-19 03:45:51,058 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 122 [2022-01-19 03:45:51,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 909 places, 673 transitions, 7912 flow. Second operand has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:51,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:45:51,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 122 [2022-01-19 03:45:51,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:45:54,099 INFO L129 PetriNetUnfolder]: 1093/4650 cut-off events. [2022-01-19 03:45:54,099 INFO L130 PetriNetUnfolder]: For 29244/29260 co-relation queries the response was YES. [2022-01-19 03:45:54,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17456 conditions, 4650 events. 1093/4650 cut-off events. For 29244/29260 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 30680 event pairs, 93 based on Foata normal form. 7/4490 useless extension candidates. Maximal degree in co-relation 16850. Up to 633 conditions per place. [2022-01-19 03:45:54,156 INFO L132 encePairwiseOnDemand]: 99/122 looper letters, 677 selfloop transitions, 138 changer transitions 56/1045 dead transitions. [2022-01-19 03:45:54,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 1045 transitions, 12624 flow [2022-01-19 03:45:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 03:45:54,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 03:45:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2074 transitions. [2022-01-19 03:45:54,158 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2022-01-19 03:45:54,158 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2074 transitions. [2022-01-19 03:45:54,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2074 transitions. [2022-01-19 03:45:54,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:45:54,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2074 transitions. [2022-01-19 03:45:54,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 62.84848484848485) internal successors, (2074), 33 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:54,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 122.0) internal successors, (4148), 34 states have internal predecessors, (4148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:54,163 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 122.0) internal successors, (4148), 34 states have internal predecessors, (4148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:54,163 INFO L186 Difference]: Start difference. First operand has 909 places, 673 transitions, 7912 flow. Second operand 33 states and 2074 transitions. [2022-01-19 03:45:54,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 1045 transitions, 12624 flow [2022-01-19 03:45:54,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 749 places, 1045 transitions, 12021 flow, removed 65 selfloop flow, removed 192 redundant places. [2022-01-19 03:45:54,411 INFO L242 Difference]: Finished difference. Result has 773 places, 773 transitions, 8900 flow [2022-01-19 03:45:54,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=7353, PETRI_DIFFERENCE_MINUEND_PLACES=717, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=8900, PETRI_PLACES=773, PETRI_TRANSITIONS=773} [2022-01-19 03:45:54,412 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 666 predicate places. [2022-01-19 03:45:54,413 INFO L470 AbstractCegarLoop]: Abstraction has has 773 places, 773 transitions, 8900 flow [2022-01-19 03:45:54,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:54,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:45:54,413 INFO L254 CegarLoopForPetriNet]: trace histogram [128, 128, 128, 128, 128, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:45:54,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-19 03:45:54,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-19 03:45:54,630 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:45:54,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:45:54,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1784251371, now seen corresponding path program 7 times [2022-01-19 03:45:54,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:45:54,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383454379] [2022-01-19 03:45:54,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:45:54,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:45:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:45:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:45:55,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:45:55,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383454379] [2022-01-19 03:45:55,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383454379] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:45:55,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065154717] [2022-01-19 03:45:55,088 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-19 03:45:55,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:45:55,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:45:55,089 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:45:55,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-19 03:45:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:45:55,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-19 03:45:55,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:45:56,476 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:45:56,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:45:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:45:56,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:45:56,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065154717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:45:56,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:45:56,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2022-01-19 03:45:56,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389421081] [2022-01-19 03:45:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:45:56,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:45:56,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:45:56,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:45:56,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-01-19 03:45:56,612 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 122 [2022-01-19 03:45:56,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 773 transitions, 8900 flow. Second operand has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:45:56,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:45:56,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 122 [2022-01-19 03:45:56,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:46:00,721 INFO L129 PetriNetUnfolder]: 1600/6154 cut-off events. [2022-01-19 03:46:00,721 INFO L130 PetriNetUnfolder]: For 46892/46953 co-relation queries the response was YES. [2022-01-19 03:46:00,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25296 conditions, 6154 events. 1600/6154 cut-off events. For 46892/46953 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 45385 event pairs, 118 based on Foata normal form. 19/5933 useless extension candidates. Maximal degree in co-relation 24971. Up to 952 conditions per place. [2022-01-19 03:46:00,798 INFO L132 encePairwiseOnDemand]: 98/122 looper letters, 731 selfloop transitions, 229 changer transitions 56/1190 dead transitions. [2022-01-19 03:46:00,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 1190 transitions, 14903 flow [2022-01-19 03:46:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 03:46:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 03:46:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2157 transitions. [2022-01-19 03:46:00,800 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5200096432015429 [2022-01-19 03:46:00,800 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2157 transitions. [2022-01-19 03:46:00,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2157 transitions. [2022-01-19 03:46:00,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:46:00,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2157 transitions. [2022-01-19 03:46:00,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 63.44117647058823) internal successors, (2157), 34 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:00,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:00,805 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:00,805 INFO L186 Difference]: Start difference. First operand has 773 places, 773 transitions, 8900 flow. Second operand 34 states and 2157 transitions. [2022-01-19 03:46:00,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 1190 transitions, 14903 flow [2022-01-19 03:46:01,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 1190 transitions, 14766 flow, removed 64 selfloop flow, removed 11 redundant places. [2022-01-19 03:46:01,172 INFO L242 Difference]: Finished difference. Result has 806 places, 900 transitions, 11283 flow [2022-01-19 03:46:01,173 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=8847, PETRI_DIFFERENCE_MINUEND_PLACES=746, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=773, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=11283, PETRI_PLACES=806, PETRI_TRANSITIONS=900} [2022-01-19 03:46:01,173 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 699 predicate places. [2022-01-19 03:46:01,173 INFO L470 AbstractCegarLoop]: Abstraction has has 806 places, 900 transitions, 11283 flow [2022-01-19 03:46:01,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:01,174 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:46:01,174 INFO L254 CegarLoopForPetriNet]: trace histogram [128, 128, 128, 128, 128, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:46:01,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-19 03:46:01,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-19 03:46:01,393 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:46:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:46:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -909849823, now seen corresponding path program 8 times [2022-01-19 03:46:01,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:46:01,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607989530] [2022-01-19 03:46:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:46:01,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:46:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:46:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:01,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:46:01,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607989530] [2022-01-19 03:46:01,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607989530] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:46:01,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858488034] [2022-01-19 03:46:01,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 03:46:01,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:46:01,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:46:01,852 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:46:01,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-19 03:46:02,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 03:46:02,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:46:02,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-19 03:46:02,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:46:03,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:46:03,403 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:46:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:03,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:46:03,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858488034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:46:03,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:46:03,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2022-01-19 03:46:03,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191571515] [2022-01-19 03:46:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:46:03,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:46:03,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:46:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:46:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-01-19 03:46:03,540 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 122 [2022-01-19 03:46:03,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 806 places, 900 transitions, 11283 flow. Second operand has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:03,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:46:03,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 122 [2022-01-19 03:46:03,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:46:09,323 INFO L129 PetriNetUnfolder]: 2349/9156 cut-off events. [2022-01-19 03:46:09,323 INFO L130 PetriNetUnfolder]: For 86123/86180 co-relation queries the response was YES. [2022-01-19 03:46:09,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38913 conditions, 9156 events. 2349/9156 cut-off events. For 86123/86180 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 78765 event pairs, 194 based on Foata normal form. 15/8804 useless extension candidates. Maximal degree in co-relation 37691. Up to 1181 conditions per place. [2022-01-19 03:46:09,507 INFO L132 encePairwiseOnDemand]: 98/122 looper letters, 954 selfloop transitions, 283 changer transitions 56/1467 dead transitions. [2022-01-19 03:46:09,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 824 places, 1467 transitions, 20076 flow [2022-01-19 03:46:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-19 03:46:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-19 03:46:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2251 transitions. [2022-01-19 03:46:09,510 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5271662763466042 [2022-01-19 03:46:09,510 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 2251 transitions. [2022-01-19 03:46:09,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 2251 transitions. [2022-01-19 03:46:09,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:46:09,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 2251 transitions. [2022-01-19 03:46:09,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 64.31428571428572) internal successors, (2251), 35 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:09,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 122.0) internal successors, (4392), 36 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:09,517 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 122.0) internal successors, (4392), 36 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:09,517 INFO L186 Difference]: Start difference. First operand has 806 places, 900 transitions, 11283 flow. Second operand 35 states and 2251 transitions. [2022-01-19 03:46:09,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 824 places, 1467 transitions, 20076 flow [2022-01-19 03:46:10,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 807 places, 1467 transitions, 19459 flow, removed 308 selfloop flow, removed 17 redundant places. [2022-01-19 03:46:10,196 INFO L242 Difference]: Finished difference. Result has 831 places, 1020 transitions, 13750 flow [2022-01-19 03:46:10,197 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11070, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=13750, PETRI_PLACES=831, PETRI_TRANSITIONS=1020} [2022-01-19 03:46:10,197 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 724 predicate places. [2022-01-19 03:46:10,197 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 1020 transitions, 13750 flow [2022-01-19 03:46:10,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:10,197 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:46:10,198 INFO L254 CegarLoopForPetriNet]: trace histogram [128, 128, 128, 128, 128, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:46:10,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-19 03:46:10,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-19 03:46:10,398 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:46:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:46:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1058537485, now seen corresponding path program 9 times [2022-01-19 03:46:10,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:46:10,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905096036] [2022-01-19 03:46:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:46:10,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:46:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:46:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:10,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:46:10,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905096036] [2022-01-19 03:46:10,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905096036] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:46:10,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99993610] [2022-01-19 03:46:10,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 03:46:10,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:46:10,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:46:10,837 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:46:10,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-19 03:46:11,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 03:46:11,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:46:11,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-19 03:46:11,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:46:12,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:46:12,148 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:46:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:12,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:46:12,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99993610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:46:12,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:46:12,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2022-01-19 03:46:12,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301441978] [2022-01-19 03:46:12,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:46:12,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:46:12,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:46:12,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:46:12,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-01-19 03:46:12,270 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 122 [2022-01-19 03:46:12,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1020 transitions, 13750 flow. Second operand has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:12,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:46:12,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 122 [2022-01-19 03:46:12,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:46:18,229 INFO L129 PetriNetUnfolder]: 2371/9132 cut-off events. [2022-01-19 03:46:18,229 INFO L130 PetriNetUnfolder]: For 95235/95314 co-relation queries the response was YES. [2022-01-19 03:46:18,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40539 conditions, 9132 events. 2371/9132 cut-off events. For 95235/95314 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 78276 event pairs, 168 based on Foata normal form. 25/8802 useless extension candidates. Maximal degree in co-relation 39316. Up to 1122 conditions per place. [2022-01-19 03:46:18,381 INFO L132 encePairwiseOnDemand]: 98/122 looper letters, 770 selfloop transitions, 383 changer transitions 56/1383 dead transitions. [2022-01-19 03:46:18,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 1383 transitions, 20185 flow [2022-01-19 03:46:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 03:46:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 03:46:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2167 transitions. [2022-01-19 03:46:18,383 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.522420443587271 [2022-01-19 03:46:18,383 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2167 transitions. [2022-01-19 03:46:18,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2167 transitions. [2022-01-19 03:46:18,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:46:18,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2167 transitions. [2022-01-19 03:46:18,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 63.73529411764706) internal successors, (2167), 34 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:18,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:18,388 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 122.0) internal successors, (4270), 35 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:18,389 INFO L186 Difference]: Start difference. First operand has 831 places, 1020 transitions, 13750 flow. Second operand 34 states and 2167 transitions. [2022-01-19 03:46:18,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 1383 transitions, 20185 flow [2022-01-19 03:46:19,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 825 places, 1383 transitions, 19407 flow, removed 343 selfloop flow, removed 23 redundant places. [2022-01-19 03:46:19,133 INFO L242 Difference]: Finished difference. Result has 846 places, 1068 transitions, 15490 flow [2022-01-19 03:46:19,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=13350, PETRI_DIFFERENCE_MINUEND_PLACES=792, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=15490, PETRI_PLACES=846, PETRI_TRANSITIONS=1068} [2022-01-19 03:46:19,134 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 739 predicate places. [2022-01-19 03:46:19,134 INFO L470 AbstractCegarLoop]: Abstraction has has 846 places, 1068 transitions, 15490 flow [2022-01-19 03:46:19,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:19,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:46:19,135 INFO L254 CegarLoopForPetriNet]: trace histogram [128, 128, 128, 128, 128, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:46:19,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-01-19 03:46:19,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-19 03:46:19,347 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:46:19,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:46:19,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2134978325, now seen corresponding path program 10 times [2022-01-19 03:46:19,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:46:19,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909991650] [2022-01-19 03:46:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:46:19,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:46:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:46:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:19,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:46:19,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909991650] [2022-01-19 03:46:19,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909991650] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:46:19,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557045000] [2022-01-19 03:46:19,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 03:46:19,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:46:19,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:46:19,690 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:46:19,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-19 03:46:20,090 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 03:46:20,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 03:46:20,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-19 03:46:20,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:46:21,098 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 03:46:21,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 03:46:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:21,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 03:46:21,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557045000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:46:21,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:46:21,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2022-01-19 03:46:21,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080225225] [2022-01-19 03:46:21,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:46:21,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:46:21,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:46:21,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:46:21,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2022-01-19 03:46:21,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 122 [2022-01-19 03:46:21,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 846 places, 1068 transitions, 15490 flow. Second operand has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:21,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:46:21,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 122 [2022-01-19 03:46:21,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:46:27,193 INFO L129 PetriNetUnfolder]: 2361/9113 cut-off events. [2022-01-19 03:46:27,196 INFO L130 PetriNetUnfolder]: For 99864/99943 co-relation queries the response was YES. [2022-01-19 03:46:27,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41335 conditions, 9113 events. 2361/9113 cut-off events. For 99864/99943 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 78015 event pairs, 172 based on Foata normal form. 25/8773 useless extension candidates. Maximal degree in co-relation 39684. Up to 1121 conditions per place. [2022-01-19 03:46:27,423 INFO L132 encePairwiseOnDemand]: 98/122 looper letters, 928 selfloop transitions, 332 changer transitions 56/1490 dead transitions. [2022-01-19 03:46:27,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 866 places, 1490 transitions, 22357 flow [2022-01-19 03:46:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-19 03:46:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-01-19 03:46:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2384 transitions. [2022-01-19 03:46:27,425 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5281346920691183 [2022-01-19 03:46:27,426 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 2384 transitions. [2022-01-19 03:46:27,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 2384 transitions. [2022-01-19 03:46:27,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:46:27,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 2384 transitions. [2022-01-19 03:46:27,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 64.43243243243244) internal successors, (2384), 37 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:27,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 122.0) internal successors, (4636), 38 states have internal predecessors, (4636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:27,430 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 122.0) internal successors, (4636), 38 states have internal predecessors, (4636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:27,430 INFO L186 Difference]: Start difference. First operand has 846 places, 1068 transitions, 15490 flow. Second operand 37 states and 2384 transitions. [2022-01-19 03:46:27,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 866 places, 1490 transitions, 22357 flow [2022-01-19 03:46:28,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 1490 transitions, 21686 flow, removed 246 selfloop flow, removed 22 redundant places. [2022-01-19 03:46:28,194 INFO L242 Difference]: Finished difference. Result has 862 places, 1072 transitions, 15983 flow [2022-01-19 03:46:28,195 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=15113, PETRI_DIFFERENCE_MINUEND_PLACES=808, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1068, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=736, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=15983, PETRI_PLACES=862, PETRI_TRANSITIONS=1072} [2022-01-19 03:46:28,195 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 755 predicate places. [2022-01-19 03:46:28,195 INFO L470 AbstractCegarLoop]: Abstraction has has 862 places, 1072 transitions, 15983 flow [2022-01-19 03:46:28,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:46:28,195 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:46:28,196 INFO L254 CegarLoopForPetriNet]: trace histogram [128, 128, 128, 128, 128, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:46:28,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-19 03:46:28,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:46:28,396 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 03:46:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:46:28,397 INFO L85 PathProgramCache]: Analyzing trace with hash 306850095, now seen corresponding path program 11 times [2022-01-19 03:46:28,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:46:28,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14410836] [2022-01-19 03:46:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:46:28,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:46:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:46:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2022-01-19 03:46:28,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:46:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14410836] [2022-01-19 03:46:28,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14410836] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:46:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927295457] [2022-01-19 03:46:28,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 03:46:28,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:46:28,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:46:28,703 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:46:28,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process Received shutdown request... [2022-01-19 03:54:23,518 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 03:54:23,518 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 03:54:24,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-01-19 03:54:24,723 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forcibly destroying the process [2022-01-19 03:54:24,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 137 [2022-01-19 03:54:24,751 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-19 03:54:24,751 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-01-19 03:54:24,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2022-01-19 03:54:24,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530530534] [2022-01-19 03:54:24,751 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-01-19 03:54:24,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:54:24,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:54:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:54:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-01-19 03:54:24,752 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 122 [2022-01-19 03:54:24,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 862 places, 1072 transitions, 15983 flow. Second operand has 15 states, 15 states have (on average 57.6) internal successors, (864), 15 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 03:54:24,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:54:24,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 122 [2022-01-19 03:54:24,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:54:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 03:54:24,755 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 03:54:24,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 03:54:24,755 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 55/122 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 200 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2022-01-19 03:54:24,756 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:54:24,758 INFO L732 BasicCegarLoop]: Path program histogram: [11, 2, 2, 1] [2022-01-19 03:54:24,758 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT (1/2) [2022-01-19 03:54:24,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 03:54:24,761 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:54:24,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 03:54:24,761 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was constructing initial abstraction,while executing CegarLoopForPetriNet. [2022-01-19 03:54:24,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 03:54:24,761 INFO L732 BasicCegarLoop]: Path program histogram: [] [2022-01-19 03:54:24,761 INFO L309 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2022-01-19 03:54:24,761 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 03:54:24,762 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 03:54:24,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 03:54:24 BasicIcfg [2022-01-19 03:54:24,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 03:54:24,765 INFO L158 Benchmark]: Toolchain (without parser) took 856227.09ms. Allocated memory was 413.1MB in the beginning and 4.5GB in the end (delta: 4.1GB). Free memory was 354.5MB in the beginning and 3.3GB in the end (delta: -3.0GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2022-01-19 03:54:24,765 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 413.1MB. Free memory is still 372.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 03:54:24,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.48ms. Allocated memory was 413.1MB in the beginning and 559.9MB in the end (delta: 146.8MB). Free memory was 354.3MB in the beginning and 509.3MB in the end (delta: -154.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. [2022-01-19 03:54:24,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.96ms. Allocated memory is still 559.9MB. Free memory was 509.3MB in the beginning and 507.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 03:54:24,768 INFO L158 Benchmark]: Boogie Preprocessor took 23.76ms. Allocated memory is still 559.9MB. Free memory was 507.2MB in the beginning and 505.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 03:54:24,769 INFO L158 Benchmark]: RCFGBuilder took 396.82ms. Allocated memory is still 559.9MB. Free memory was 505.1MB in the beginning and 487.2MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-19 03:54:24,769 INFO L158 Benchmark]: TraceAbstraction took 855322.30ms. Allocated memory was 559.9MB in the beginning and 4.5GB in the end (delta: 3.9GB). Free memory was 487.2MB in the beginning and 3.3GB in the end (delta: -2.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2022-01-19 03:54:24,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 413.1MB. Free memory is still 372.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 434.48ms. Allocated memory was 413.1MB in the beginning and 559.9MB in the end (delta: 146.8MB). Free memory was 354.3MB in the beginning and 509.3MB in the end (delta: -154.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.96ms. Allocated memory is still 559.9MB. Free memory was 509.3MB in the beginning and 507.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.76ms. Allocated memory is still 559.9MB. Free memory was 507.2MB in the beginning and 505.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 396.82ms. Allocated memory is still 559.9MB. Free memory was 505.1MB in the beginning and 487.2MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 855322.30ms. Allocated memory was 559.9MB in the beginning and 4.5GB in the end (delta: 3.9GB). Free memory was 487.2MB in the beginning and 3.3GB in the end (delta: -2.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1029]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 55/122 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 200 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 1044]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was constructing initial abstraction,while executing CegarLoopForPetriNet. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 157 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 855.2s, OverallIterations: 16, TraceHistogramMax: 128, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 67.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5378 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5378 mSDsluCounter, 7114 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1229 IncrementalHoareTripleChecker+Unchecked, 6384 mSDsCounter, 1696 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8437 IncrementalHoareTripleChecker+Invalid, 11362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1696 mSolverCounterUnsat, 756 mSDtfsCounter, 8437 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7202 GetRequests, 5567 SyntacticMatches, 12 SemanticMatches, 1623 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 99169 ImplicationChecksByTransitivity, 54.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15983occurred in iteration=15, InterpolantAutomatonStates: 1148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 273.3s SatisfiabilityAnalysisTime, 33.4s InterpolantComputationTime, 10309 NumberOfCodeBlocks, 8844 NumberOfCodeBlocksAsserted, 103 NumberOfCheckSat, 11423 ConstructedInterpolants, 32 QuantifiedInterpolants, 28986 SizeOfPredicates, 368 NumberOfNonLiveVariables, 6918 ConjunctsInSsa, 457 ConjunctsInUnsatCore, 37 InterpolantComputations, 8 PerfectInterpolantSequences, 453326/496772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 157 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown