/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:43:34,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:43:34,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:43:34,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:43:34,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:43:34,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:43:34,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:43:34,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:43:34,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:43:34,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:43:34,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:43:34,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:43:34,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:43:34,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:43:34,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:43:34,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:43:34,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:43:34,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:43:34,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:43:34,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:43:34,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:43:34,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:43:34,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:43:34,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:43:34,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:43:34,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:43:34,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:43:34,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:43:34,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:43:34,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:43:34,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:43:34,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:43:34,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:43:34,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:43:34,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:43:34,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:43:34,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:43:34,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:43:34,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:43:34,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:43:34,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:43:34,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 23:43:34,410 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:43:34,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:43:34,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:43:34,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:43:34,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:43:34,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:43:34,413 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:43:34,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:43:34,413 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:43:34,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:43:34,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:43:34,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:43:34,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:43:34,415 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:43:34,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:43:34,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:43:34,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:43:34,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:43:34,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:43:34,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:43:34,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:43:34,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:43:34,678 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:43:34,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-12-11 23:43:35,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:43:35,999 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:43:35,999 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-12-11 23:43:36,019 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62b0ed6e/043155cddd7e4362843a83b00b5186fd/FLAGaba65c98d [2022-12-11 23:43:36,289 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62b0ed6e/043155cddd7e4362843a83b00b5186fd [2022-12-11 23:43:36,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:43:36,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:43:36,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:43:36,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:43:36,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:43:36,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:43:36" (1/1) ... [2022-12-11 23:43:36,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0bf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:36, skipping insertion in model container [2022-12-11 23:43:36,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:43:36" (1/1) ... [2022-12-11 23:43:36,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:43:36,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:43:36,904 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2022-12-11 23:43:36,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:43:36,959 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:43:36,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2022-12-11 23:43:37,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:43:37,120 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:43:37,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37 WrapperNode [2022-12-11 23:43:37,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:43:37,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:43:37,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:43:37,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:43:37,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,198 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-12-11 23:43:37,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:43:37,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:43:37,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:43:37,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:43:37,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:43:37,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:43:37,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:43:37,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:43:37,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (1/1) ... [2022-12-11 23:43:37,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:43:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:43:37,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 23:43:37,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 23:43:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:43:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 23:43:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 23:43:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:43:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-11 23:43:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:43:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:43:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-11 23:43:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-11 23:43:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:43:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:43:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:43:37,303 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:43:37,545 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:43:37,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:43:37,776 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:43:37,784 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:43:37,785 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:43:37,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:43:37 BoogieIcfgContainer [2022-12-11 23:43:37,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:43:37,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:43:37,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:43:37,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:43:37,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:43:36" (1/3) ... [2022-12-11 23:43:37,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3089166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:43:37, skipping insertion in model container [2022-12-11 23:43:37,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:37" (2/3) ... [2022-12-11 23:43:37,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3089166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:43:37, skipping insertion in model container [2022-12-11 23:43:37,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:43:37" (3/3) ... [2022-12-11 23:43:37,791 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-12-11 23:43:37,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:43:37,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-11 23:43:37,804 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:43:37,857 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 23:43:37,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 174 transitions, 364 flow [2022-12-11 23:43:37,930 INFO L130 PetriNetUnfolder]: 10/212 cut-off events. [2022-12-11 23:43:37,931 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 23:43:37,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 212 events. 10/212 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 372 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 124. Up to 4 conditions per place. [2022-12-11 23:43:37,935 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 174 transitions, 364 flow [2022-12-11 23:43:37,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 162 transitions, 336 flow [2022-12-11 23:43:37,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:43:37,963 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c97f98d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:43:37,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-11 23:43:37,970 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-12-11 23:43:37,970 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:43:37,970 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:37,971 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:37,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:37,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:37,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1960341610, now seen corresponding path program 1 times [2022-12-11 23:43:37,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:37,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529590984] [2022-12-11 23:43:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:37,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:38,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:38,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529590984] [2022-12-11 23:43:38,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529590984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:38,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:38,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:38,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826026786] [2022-12-11 23:43:38,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:38,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:38,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:38,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:38,547 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 174 [2022-12-11 23:43:38,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 162 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:38,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:38,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 174 [2022-12-11 23:43:38,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:38,920 INFO L130 PetriNetUnfolder]: 361/1019 cut-off events. [2022-12-11 23:43:38,920 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-11 23:43:38,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 1019 events. 361/1019 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6154 event pairs, 216 based on Foata normal form. 20/990 useless extension candidates. Maximal degree in co-relation 1481. Up to 397 conditions per place. [2022-12-11 23:43:38,930 INFO L137 encePairwiseOnDemand]: 152/174 looper letters, 53 selfloop transitions, 17 changer transitions 1/158 dead transitions. [2022-12-11 23:43:38,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 158 transitions, 470 flow [2022-12-11 23:43:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 23:43:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 23:43:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 949 transitions. [2022-12-11 23:43:38,947 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6060025542784163 [2022-12-11 23:43:38,951 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 1 predicate places. [2022-12-11 23:43:38,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 158 transitions, 470 flow [2022-12-11 23:43:38,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 157 transitions, 466 flow [2022-12-11 23:43:38,959 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 466 flow [2022-12-11 23:43:38,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:38,960 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:38,960 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:38,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:43:38,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2039733244, now seen corresponding path program 1 times [2022-12-11 23:43:38,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:38,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375723680] [2022-12-11 23:43:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:39,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:39,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375723680] [2022-12-11 23:43:39,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375723680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:39,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:39,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:39,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491581880] [2022-12-11 23:43:39,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:39,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:39,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:39,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:39,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:39,220 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 174 [2022-12-11 23:43:39,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 466 flow. Second operand has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:39,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:39,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 174 [2022-12-11 23:43:39,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:39,467 INFO L130 PetriNetUnfolder]: 361/957 cut-off events. [2022-12-11 23:43:39,467 INFO L131 PetriNetUnfolder]: For 80/250 co-relation queries the response was YES. [2022-12-11 23:43:39,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2323 conditions, 957 events. 361/957 cut-off events. For 80/250 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5588 event pairs, 120 based on Foata normal form. 0/910 useless extension candidates. Maximal degree in co-relation 2017. Up to 400 conditions per place. [2022-12-11 23:43:39,477 INFO L137 encePairwiseOnDemand]: 155/174 looper letters, 61 selfloop transitions, 18 changer transitions 0/165 dead transitions. [2022-12-11 23:43:39,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 165 transitions, 658 flow [2022-12-11 23:43:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:43:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:43:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1050 transitions. [2022-12-11 23:43:39,480 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.603448275862069 [2022-12-11 23:43:39,481 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 8 predicate places. [2022-12-11 23:43:39,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 165 transitions, 658 flow [2022-12-11 23:43:39,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 165 transitions, 658 flow [2022-12-11 23:43:39,489 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 165 transitions, 658 flow [2022-12-11 23:43:39,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:39,494 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:39,494 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:39,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:43:39,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:39,496 INFO L85 PathProgramCache]: Analyzing trace with hash 886989091, now seen corresponding path program 1 times [2022-12-11 23:43:39,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:39,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141808568] [2022-12-11 23:43:39,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:39,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:39,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:39,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141808568] [2022-12-11 23:43:39,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141808568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:39,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:39,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:39,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196937594] [2022-12-11 23:43:39,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:39,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:39,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:39,777 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2022-12-11 23:43:39,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 165 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:39,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:39,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2022-12-11 23:43:39,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:40,217 INFO L130 PetriNetUnfolder]: 832/1966 cut-off events. [2022-12-11 23:43:40,217 INFO L131 PetriNetUnfolder]: For 305/413 co-relation queries the response was YES. [2022-12-11 23:43:40,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6285 conditions, 1966 events. 832/1966 cut-off events. For 305/413 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 12793 event pairs, 104 based on Foata normal form. 0/1930 useless extension candidates. Maximal degree in co-relation 5908. Up to 884 conditions per place. [2022-12-11 23:43:40,230 INFO L137 encePairwiseOnDemand]: 153/174 looper letters, 117 selfloop transitions, 59 changer transitions 0/262 dead transitions. [2022-12-11 23:43:40,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 262 transitions, 1584 flow [2022-12-11 23:43:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:43:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:43:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1384 transitions. [2022-12-11 23:43:40,233 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6118479221927497 [2022-12-11 23:43:40,234 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 20 predicate places. [2022-12-11 23:43:40,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 262 transitions, 1584 flow [2022-12-11 23:43:40,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 262 transitions, 1584 flow [2022-12-11 23:43:40,243 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 262 transitions, 1584 flow [2022-12-11 23:43:40,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:40,243 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:40,244 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:40,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:43:40,244 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1761071825, now seen corresponding path program 1 times [2022-12-11 23:43:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:40,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753747900] [2022-12-11 23:43:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:40,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:40,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753747900] [2022-12-11 23:43:40,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753747900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:40,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:40,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370382254] [2022-12-11 23:43:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:40,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:40,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:40,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:40,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:40,465 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2022-12-11 23:43:40,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 262 transitions, 1584 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:40,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:40,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2022-12-11 23:43:40,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:40,919 INFO L130 PetriNetUnfolder]: 1144/2533 cut-off events. [2022-12-11 23:43:40,920 INFO L131 PetriNetUnfolder]: For 798/966 co-relation queries the response was YES. [2022-12-11 23:43:40,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10419 conditions, 2533 events. 1144/2533 cut-off events. For 798/966 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 17179 event pairs, 109 based on Foata normal form. 47/2529 useless extension candidates. Maximal degree in co-relation 9974. Up to 1197 conditions per place. [2022-12-11 23:43:40,935 INFO L137 encePairwiseOnDemand]: 155/174 looper letters, 127 selfloop transitions, 53 changer transitions 99/365 dead transitions. [2022-12-11 23:43:40,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 365 transitions, 2960 flow [2022-12-11 23:43:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 23:43:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 23:43:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1175 transitions. [2022-12-11 23:43:40,939 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6138975966562173 [2022-12-11 23:43:40,941 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 30 predicate places. [2022-12-11 23:43:40,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 365 transitions, 2960 flow [2022-12-11 23:43:40,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 266 transitions, 1994 flow [2022-12-11 23:43:40,956 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 266 transitions, 1994 flow [2022-12-11 23:43:40,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:40,957 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:40,957 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:40,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:43:40,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1643089307, now seen corresponding path program 1 times [2022-12-11 23:43:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:40,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777231857] [2022-12-11 23:43:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:40,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:41,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:41,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777231857] [2022-12-11 23:43:41,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777231857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:41,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:41,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 23:43:41,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590841164] [2022-12-11 23:43:41,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:41,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 23:43:41,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:41,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 23:43:41,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-11 23:43:41,096 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 174 [2022-12-11 23:43:41,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 266 transitions, 1994 flow. Second operand has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:41,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:41,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 174 [2022-12-11 23:43:41,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:41,151 INFO L130 PetriNetUnfolder]: 72/343 cut-off events. [2022-12-11 23:43:41,151 INFO L131 PetriNetUnfolder]: For 208/268 co-relation queries the response was YES. [2022-12-11 23:43:41,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 343 events. 72/343 cut-off events. For 208/268 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1310 event pairs, 72 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 701. Up to 152 conditions per place. [2022-12-11 23:43:41,153 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 9 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2022-12-11 23:43:41,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 125 transitions, 668 flow [2022-12-11 23:43:41,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 23:43:41,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 23:43:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 896 transitions. [2022-12-11 23:43:41,155 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8582375478927203 [2022-12-11 23:43:41,155 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, -4 predicate places. [2022-12-11 23:43:41,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 125 transitions, 668 flow [2022-12-11 23:43:41,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 125 transitions, 668 flow [2022-12-11 23:43:41,157 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 125 transitions, 668 flow [2022-12-11 23:43:41,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:41,157 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:41,157 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:41,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:43:41,158 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:41,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:41,158 INFO L85 PathProgramCache]: Analyzing trace with hash 801602683, now seen corresponding path program 1 times [2022-12-11 23:43:41,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:41,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655269912] [2022-12-11 23:43:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:41,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:42,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:42,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655269912] [2022-12-11 23:43:42,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655269912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:42,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:42,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 23:43:42,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424481698] [2022-12-11 23:43:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:42,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 23:43:42,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:42,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 23:43:42,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-12-11 23:43:42,688 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:43:42,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 125 transitions, 668 flow. Second operand has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:42,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:42,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:43:42,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:43,870 INFO L130 PetriNetUnfolder]: 489/1213 cut-off events. [2022-12-11 23:43:43,870 INFO L131 PetriNetUnfolder]: For 3360/3392 co-relation queries the response was YES. [2022-12-11 23:43:43,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4603 conditions, 1213 events. 489/1213 cut-off events. For 3360/3392 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6919 event pairs, 83 based on Foata normal form. 0/1182 useless extension candidates. Maximal degree in co-relation 3453. Up to 580 conditions per place. [2022-12-11 23:43:43,876 INFO L137 encePairwiseOnDemand]: 149/174 looper letters, 122 selfloop transitions, 28 changer transitions 0/207 dead transitions. [2022-12-11 23:43:43,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 207 transitions, 1671 flow [2022-12-11 23:43:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-11 23:43:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-11 23:43:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1726 transitions. [2022-12-11 23:43:43,895 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4723590585659551 [2022-12-11 23:43:43,895 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 16 predicate places. [2022-12-11 23:43:43,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 207 transitions, 1671 flow [2022-12-11 23:43:43,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 207 transitions, 1671 flow [2022-12-11 23:43:43,901 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 207 transitions, 1671 flow [2022-12-11 23:43:43,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:43,902 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:43,902 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:43,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:43:43,902 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1760985005, now seen corresponding path program 2 times [2022-12-11 23:43:43,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:43,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305957194] [2022-12-11 23:43:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:43,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:45,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:45,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305957194] [2022-12-11 23:43:45,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305957194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:45,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:45,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-12-11 23:43:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228069489] [2022-12-11 23:43:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:45,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-11 23:43:45,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:45,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-11 23:43:45,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-11 23:43:45,295 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:43:45,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 207 transitions, 1671 flow. Second operand has 20 states, 20 states have (on average 78.05) internal successors, (1561), 20 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:45,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:45,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:43:45,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:46,624 INFO L130 PetriNetUnfolder]: 554/1456 cut-off events. [2022-12-11 23:43:46,625 INFO L131 PetriNetUnfolder]: For 4295/4583 co-relation queries the response was YES. [2022-12-11 23:43:46,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6672 conditions, 1456 events. 554/1456 cut-off events. For 4295/4583 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9216 event pairs, 3 based on Foata normal form. 9/1455 useless extension candidates. Maximal degree in co-relation 4811. Up to 709 conditions per place. [2022-12-11 23:43:46,633 INFO L137 encePairwiseOnDemand]: 145/174 looper letters, 204 selfloop transitions, 50 changer transitions 0/311 dead transitions. [2022-12-11 23:43:46,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 311 transitions, 3316 flow [2022-12-11 23:43:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-11 23:43:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-11 23:43:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1877 transitions. [2022-12-11 23:43:46,639 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46901549225387307 [2022-12-11 23:43:46,639 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 38 predicate places. [2022-12-11 23:43:46,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 311 transitions, 3316 flow [2022-12-11 23:43:46,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 311 transitions, 3316 flow [2022-12-11 23:43:46,647 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 311 transitions, 3316 flow [2022-12-11 23:43:46,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 78.05) internal successors, (1561), 20 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:46,648 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:46,648 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:46,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:43:46,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:46,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1405503849, now seen corresponding path program 3 times [2022-12-11 23:43:46,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:46,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968233839] [2022-12-11 23:43:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:46,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:47,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:47,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968233839] [2022-12-11 23:43:47,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968233839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:47,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:47,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 23:43:47,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967146407] [2022-12-11 23:43:47,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:47,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 23:43:47,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 23:43:47,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-12-11 23:43:47,244 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-12-11 23:43:47,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 311 transitions, 3316 flow. Second operand has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:47,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:47,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-12-11 23:43:47,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:48,296 INFO L130 PetriNetUnfolder]: 1584/3553 cut-off events. [2022-12-11 23:43:48,296 INFO L131 PetriNetUnfolder]: For 12847/14032 co-relation queries the response was YES. [2022-12-11 23:43:48,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16102 conditions, 3553 events. 1584/3553 cut-off events. For 12847/14032 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 25244 event pairs, 113 based on Foata normal form. 87/3592 useless extension candidates. Maximal degree in co-relation 14013. Up to 1356 conditions per place. [2022-12-11 23:43:48,318 INFO L137 encePairwiseOnDemand]: 160/174 looper letters, 348 selfloop transitions, 31 changer transitions 0/559 dead transitions. [2022-12-11 23:43:48,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 559 transitions, 6523 flow [2022-12-11 23:43:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:43:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:43:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1867 transitions. [2022-12-11 23:43:48,323 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8253757736516357 [2022-12-11 23:43:48,325 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 50 predicate places. [2022-12-11 23:43:48,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 559 transitions, 6523 flow [2022-12-11 23:43:48,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 559 transitions, 6523 flow [2022-12-11 23:43:48,343 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 559 transitions, 6523 flow [2022-12-11 23:43:48,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:48,344 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:48,344 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:48,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:43:48,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:48,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1562262441, now seen corresponding path program 4 times [2022-12-11 23:43:48,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:48,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181827417] [2022-12-11 23:43:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:48,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:49,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:49,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181827417] [2022-12-11 23:43:49,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181827417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:49,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:49,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 23:43:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840096291] [2022-12-11 23:43:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 23:43:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 23:43:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-12-11 23:43:49,561 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:43:49,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 559 transitions, 6523 flow. Second operand has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:49,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:49,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:43:49,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:51,127 INFO L130 PetriNetUnfolder]: 2515/5412 cut-off events. [2022-12-11 23:43:51,128 INFO L131 PetriNetUnfolder]: For 24315/25573 co-relation queries the response was YES. [2022-12-11 23:43:51,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28068 conditions, 5412 events. 2515/5412 cut-off events. For 24315/25573 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 41489 event pairs, 37 based on Foata normal form. 22/5403 useless extension candidates. Maximal degree in co-relation 23981. Up to 2160 conditions per place. [2022-12-11 23:43:51,159 INFO L137 encePairwiseOnDemand]: 146/174 looper letters, 647 selfloop transitions, 112 changer transitions 0/956 dead transitions. [2022-12-11 23:43:51,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 956 transitions, 13297 flow [2022-12-11 23:43:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 23:43:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 23:43:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1644 transitions. [2022-12-11 23:43:51,163 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4724137931034483 [2022-12-11 23:43:51,164 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 69 predicate places. [2022-12-11 23:43:51,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 956 transitions, 13297 flow [2022-12-11 23:43:51,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 956 transitions, 13297 flow [2022-12-11 23:43:51,194 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 956 transitions, 13297 flow [2022-12-11 23:43:51,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:51,194 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:51,195 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:51,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 23:43:51,195 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1706410793, now seen corresponding path program 5 times [2022-12-11 23:43:51,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:51,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494693964] [2022-12-11 23:43:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:51,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:52,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:52,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494693964] [2022-12-11 23:43:52,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494693964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:52,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:52,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 23:43:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229991630] [2022-12-11 23:43:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:52,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 23:43:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 23:43:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-12-11 23:43:52,184 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:43:52,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 956 transitions, 13297 flow. Second operand has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:52,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:52,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:43:52,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:54,537 INFO L130 PetriNetUnfolder]: 3804/8706 cut-off events. [2022-12-11 23:43:54,537 INFO L131 PetriNetUnfolder]: For 50436/57178 co-relation queries the response was YES. [2022-12-11 23:43:54,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50593 conditions, 8706 events. 3804/8706 cut-off events. For 50436/57178 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 74927 event pairs, 63 based on Foata normal form. 24/8693 useless extension candidates. Maximal degree in co-relation 42194. Up to 3603 conditions per place. [2022-12-11 23:43:54,651 INFO L137 encePairwiseOnDemand]: 148/174 looper letters, 1159 selfloop transitions, 103 changer transitions 0/1459 dead transitions. [2022-12-11 23:43:54,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 1459 transitions, 24235 flow [2022-12-11 23:43:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-11 23:43:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-11 23:43:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1814 transitions. [2022-12-11 23:43:54,654 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47387669801462906 [2022-12-11 23:43:54,655 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 90 predicate places. [2022-12-11 23:43:54,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 1459 transitions, 24235 flow [2022-12-11 23:43:54,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 1459 transitions, 24235 flow [2022-12-11 23:43:54,705 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 1459 transitions, 24235 flow [2022-12-11 23:43:54,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:54,707 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:54,707 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:54,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 23:43:54,708 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:54,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:54,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1948022259, now seen corresponding path program 6 times [2022-12-11 23:43:54,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:54,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805816899] [2022-12-11 23:43:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:54,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:55,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:55,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805816899] [2022-12-11 23:43:55,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805816899] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:55,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:55,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 23:43:55,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046846869] [2022-12-11 23:43:55,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:55,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 23:43:55,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:55,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 23:43:55,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-12-11 23:43:55,381 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2022-12-11 23:43:55,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 1459 transitions, 24235 flow. Second operand has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:55,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:55,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2022-12-11 23:43:55,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:59,358 INFO L130 PetriNetUnfolder]: 6181/14290 cut-off events. [2022-12-11 23:43:59,358 INFO L131 PetriNetUnfolder]: For 92863/100845 co-relation queries the response was YES. [2022-12-11 23:43:59,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92355 conditions, 14290 events. 6181/14290 cut-off events. For 92863/100845 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 137144 event pairs, 61 based on Foata normal form. 139/14373 useless extension candidates. Maximal degree in co-relation 75436. Up to 6075 conditions per place. [2022-12-11 23:43:59,472 INFO L137 encePairwiseOnDemand]: 158/174 looper letters, 1530 selfloop transitions, 141 changer transitions 0/2218 dead transitions. [2022-12-11 23:43:59,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 2218 transitions, 40258 flow [2022-12-11 23:43:59,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:43:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:43:59,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2163 transitions. [2022-12-11 23:43:59,475 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7769396551724138 [2022-12-11 23:43:59,476 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 105 predicate places. [2022-12-11 23:43:59,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 2218 transitions, 40258 flow [2022-12-11 23:43:59,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 2218 transitions, 40258 flow [2022-12-11 23:43:59,572 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 2218 transitions, 40258 flow [2022-12-11 23:43:59,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:59,574 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:59,574 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:59,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 23:43:59,574 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:59,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1266603321, now seen corresponding path program 7 times [2022-12-11 23:43:59,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:59,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903917041] [2022-12-11 23:43:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:59,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:01,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:01,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:01,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903917041] [2022-12-11 23:44:01,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903917041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:01,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:01,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-11 23:44:01,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836133317] [2022-12-11 23:44:01,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:01,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-11 23:44:01,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-11 23:44:01,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-12-11 23:44:01,069 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2022-12-11 23:44:01,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 2218 transitions, 40258 flow. Second operand has 25 states, 25 states have (on average 70.72) internal successors, (1768), 25 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:01,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:01,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2022-12-11 23:44:01,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:12,221 INFO L130 PetriNetUnfolder]: 6962/16252 cut-off events. [2022-12-11 23:44:12,221 INFO L131 PetriNetUnfolder]: For 119710/141357 co-relation queries the response was YES. [2022-12-11 23:44:12,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117494 conditions, 16252 events. 6962/16252 cut-off events. For 119710/141357 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 158691 event pairs, 64 based on Foata normal form. 547/16741 useless extension candidates. Maximal degree in co-relation 96504. Up to 6877 conditions per place. [2022-12-11 23:44:12,352 INFO L137 encePairwiseOnDemand]: 145/174 looper letters, 2345 selfloop transitions, 344 changer transitions 0/2739 dead transitions. [2022-12-11 23:44:12,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 2739 transitions, 53700 flow [2022-12-11 23:44:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-11 23:44:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-11 23:44:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 3764 transitions. [2022-12-11 23:44:12,358 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.43264367816091953 [2022-12-11 23:44:12,358 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 154 predicate places. [2022-12-11 23:44:12,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 2739 transitions, 53700 flow [2022-12-11 23:44:12,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 316 places, 2739 transitions, 53700 flow [2022-12-11 23:44:12,468 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 2739 transitions, 53700 flow [2022-12-11 23:44:12,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 70.72) internal successors, (1768), 25 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:12,469 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:12,469 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:12,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-11 23:44:12,469 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:12,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash 891132547, now seen corresponding path program 8 times [2022-12-11 23:44:12,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:12,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107245661] [2022-12-11 23:44:12,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:12,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:13,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:13,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107245661] [2022-12-11 23:44:13,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107245661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:13,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:13,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 23:44:13,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69113618] [2022-12-11 23:44:13,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:13,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 23:44:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:13,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 23:44:13,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-12-11 23:44:13,521 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:44:13,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 2739 transitions, 53700 flow. Second operand has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:13,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:13,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:44:13,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:21,874 INFO L130 PetriNetUnfolder]: 8316/20204 cut-off events. [2022-12-11 23:44:21,874 INFO L131 PetriNetUnfolder]: For 179144/192536 co-relation queries the response was YES. [2022-12-11 23:44:21,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159489 conditions, 20204 events. 8316/20204 cut-off events. For 179144/192536 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 210868 event pairs, 53 based on Foata normal form. 616/20753 useless extension candidates. Maximal degree in co-relation 127144. Up to 8805 conditions per place. [2022-12-11 23:44:22,017 INFO L137 encePairwiseOnDemand]: 146/174 looper letters, 2387 selfloop transitions, 632 changer transitions 0/3360 dead transitions. [2022-12-11 23:44:22,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 3360 transitions, 73387 flow [2022-12-11 23:44:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-11 23:44:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-11 23:44:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1830 transitions. [2022-12-11 23:44:22,020 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4780564263322884 [2022-12-11 23:44:22,020 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 175 predicate places. [2022-12-11 23:44:22,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 337 places, 3360 transitions, 73387 flow [2022-12-11 23:44:22,146 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 337 places, 3360 transitions, 73387 flow [2022-12-11 23:44:22,146 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 3360 transitions, 73387 flow [2022-12-11 23:44:22,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:22,147 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:22,147 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:22,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-11 23:44:22,147 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:22,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:22,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1610903575, now seen corresponding path program 9 times [2022-12-11 23:44:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:22,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871235502] [2022-12-11 23:44:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:22,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:23,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:23,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871235502] [2022-12-11 23:44:23,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871235502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:23,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:23,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 23:44:23,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757854247] [2022-12-11 23:44:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:23,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 23:44:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 23:44:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-12-11 23:44:23,789 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2022-12-11 23:44:23,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 3360 transitions, 73387 flow. Second operand has 27 states, 27 states have (on average 70.51851851851852) internal successors, (1904), 27 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:23,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:23,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2022-12-11 23:44:23,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:36,805 INFO L130 PetriNetUnfolder]: 8638/21104 cut-off events. [2022-12-11 23:44:36,805 INFO L131 PetriNetUnfolder]: For 208634/228024 co-relation queries the response was YES. [2022-12-11 23:44:36,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182776 conditions, 21104 events. 8638/21104 cut-off events. For 208634/228024 co-relation queries the response was YES. Maximal size of possible extension queue 854. Compared 222391 event pairs, 65 based on Foata normal form. 334/21352 useless extension candidates. Maximal degree in co-relation 145000. Up to 9164 conditions per place. [2022-12-11 23:44:36,960 INFO L137 encePairwiseOnDemand]: 141/174 looper letters, 3125 selfloop transitions, 605 changer transitions 0/3780 dead transitions. [2022-12-11 23:44:36,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 3780 transitions, 88380 flow [2022-12-11 23:44:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-11 23:44:36,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-11 23:44:36,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2602 transitions. [2022-12-11 23:44:36,963 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4398242055442867 [2022-12-11 23:44:36,963 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 208 predicate places. [2022-12-11 23:44:36,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 3780 transitions, 88380 flow [2022-12-11 23:44:37,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 3780 transitions, 88380 flow [2022-12-11 23:44:37,115 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 3780 transitions, 88380 flow [2022-12-11 23:44:37,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 70.51851851851852) internal successors, (1904), 27 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:37,116 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:37,116 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:37,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-11 23:44:37,116 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:37,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:37,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1461839189, now seen corresponding path program 10 times [2022-12-11 23:44:37,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:37,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691939010] [2022-12-11 23:44:37,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:37,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:37,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:37,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691939010] [2022-12-11 23:44:37,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691939010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:37,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:37,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 23:44:37,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808753915] [2022-12-11 23:44:37,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:37,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 23:44:37,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:37,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 23:44:37,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-12-11 23:44:37,956 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:44:37,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 3780 transitions, 88380 flow. Second operand has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:37,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:37,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:44:37,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:51,800 INFO L130 PetriNetUnfolder]: 10254/25663 cut-off events. [2022-12-11 23:44:51,800 INFO L131 PetriNetUnfolder]: For 298929/318557 co-relation queries the response was YES. [2022-12-11 23:44:51,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238789 conditions, 25663 events. 10254/25663 cut-off events. For 298929/318557 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 282608 event pairs, 60 based on Foata normal form. 515/26097 useless extension candidates. Maximal degree in co-relation 185596. Up to 11322 conditions per place. [2022-12-11 23:44:51,999 INFO L137 encePairwiseOnDemand]: 148/174 looper letters, 3695 selfloop transitions, 520 changer transitions 0/4567 dead transitions. [2022-12-11 23:44:51,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 4567 transitions, 116794 flow [2022-12-11 23:44:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-11 23:44:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-11 23:44:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1822 transitions. [2022-12-11 23:44:52,002 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47596656217345873 [2022-12-11 23:44:52,002 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 229 predicate places. [2022-12-11 23:44:52,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 4567 transitions, 116794 flow [2022-12-11 23:44:52,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 391 places, 4567 transitions, 116794 flow [2022-12-11 23:44:52,187 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 4567 transitions, 116794 flow [2022-12-11 23:44:52,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:52,187 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:52,187 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:52,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-11 23:44:52,188 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:52,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1322647947, now seen corresponding path program 11 times [2022-12-11 23:44:52,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:52,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073670124] [2022-12-11 23:44:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:52,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:53,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:53,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073670124] [2022-12-11 23:44:53,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073670124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:53,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:53,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-11 23:44:53,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144149613] [2022-12-11 23:44:53,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:53,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-11 23:44:53,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:53,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-11 23:44:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-12-11 23:44:53,310 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2022-12-11 23:44:53,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 4567 transitions, 116794 flow. Second operand has 25 states, 25 states have (on average 70.72) internal successors, (1768), 25 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:53,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:53,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2022-12-11 23:44:53,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:16,046 INFO L130 PetriNetUnfolder]: 12608/31701 cut-off events. [2022-12-11 23:45:16,046 INFO L131 PetriNetUnfolder]: For 409387/435368 co-relation queries the response was YES. [2022-12-11 23:45:16,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321902 conditions, 31701 events. 12608/31701 cut-off events. For 409387/435368 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 364250 event pairs, 103 based on Foata normal form. 381/31979 useless extension candidates. Maximal degree in co-relation 246577. Up to 14311 conditions per place. [2022-12-11 23:45:16,366 INFO L137 encePairwiseOnDemand]: 144/174 looper letters, 5394 selfloop transitions, 395 changer transitions 0/5839 dead transitions. [2022-12-11 23:45:16,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 5839 transitions, 161239 flow [2022-12-11 23:45:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-11 23:45:16,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-11 23:45:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2106 transitions. [2022-12-11 23:45:16,369 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2022-12-11 23:45:16,369 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 255 predicate places. [2022-12-11 23:45:16,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 417 places, 5839 transitions, 161239 flow [2022-12-11 23:45:16,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 5839 transitions, 161239 flow [2022-12-11 23:45:16,616 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 5839 transitions, 161239 flow [2022-12-11 23:45:16,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 70.72) internal successors, (1768), 25 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:16,616 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:16,616 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:16,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-11 23:45:16,616 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:16,617 INFO L85 PathProgramCache]: Analyzing trace with hash 401397789, now seen corresponding path program 12 times [2022-12-11 23:45:16,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:16,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315941779] [2022-12-11 23:45:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:16,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:17,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:17,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315941779] [2022-12-11 23:45:17,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315941779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:17,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:17,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 23:45:17,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118003225] [2022-12-11 23:45:17,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:17,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 23:45:17,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:17,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 23:45:17,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-12-11 23:45:17,391 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2022-12-11 23:45:17,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 5839 transitions, 161239 flow. Second operand has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:17,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:17,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2022-12-11 23:45:17,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:56,644 INFO L130 PetriNetUnfolder]: 14518/36918 cut-off events. [2022-12-11 23:45:56,644 INFO L131 PetriNetUnfolder]: For 551052/586262 co-relation queries the response was YES. [2022-12-11 23:45:56,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396856 conditions, 36918 events. 14518/36918 cut-off events. For 551052/586262 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 436518 event pairs, 113 based on Foata normal form. 281/37089 useless extension candidates. Maximal degree in co-relation 301780. Up to 17104 conditions per place. [2022-12-11 23:45:57,025 INFO L137 encePairwiseOnDemand]: 148/174 looper letters, 5674 selfloop transitions, 562 changer transitions 0/6677 dead transitions. [2022-12-11 23:45:57,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 6677 transitions, 197930 flow [2022-12-11 23:45:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-11 23:45:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-11 23:45:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1822 transitions. [2022-12-11 23:45:57,027 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47596656217345873 [2022-12-11 23:45:57,027 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 276 predicate places. [2022-12-11 23:45:57,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 6677 transitions, 197930 flow [2022-12-11 23:45:57,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 6677 transitions, 197930 flow [2022-12-11 23:45:57,292 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 6677 transitions, 197930 flow [2022-12-11 23:45:57,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.21052631578948) internal successors, (1486), 19 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:57,292 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:57,292 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:57,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-11 23:45:57,292 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1662967803, now seen corresponding path program 13 times [2022-12-11 23:45:57,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:57,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887850253] [2022-12-11 23:45:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:57,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:57,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:57,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887850253] [2022-12-11 23:45:57,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887850253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:57,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:57,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 23:45:57,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698912110] [2022-12-11 23:45:57,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:57,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 23:45:57,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 23:45:57,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-12-11 23:45:57,784 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2022-12-11 23:45:57,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 6677 transitions, 197930 flow. Second operand has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:57,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:57,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2022-12-11 23:45:57,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:46:43,463 INFO L130 PetriNetUnfolder]: 14809/37492 cut-off events. [2022-12-11 23:46:43,463 INFO L131 PetriNetUnfolder]: For 600736/640055 co-relation queries the response was YES. [2022-12-11 23:46:43,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425067 conditions, 37492 events. 14809/37492 cut-off events. For 600736/640055 co-relation queries the response was YES. Maximal size of possible extension queue 1616. Compared 442533 event pairs, 88 based on Foata normal form. 161/37526 useless extension candidates. Maximal degree in co-relation 326441. Up to 17104 conditions per place. [2022-12-11 23:46:43,777 INFO L137 encePairwiseOnDemand]: 158/174 looper letters, 4734 selfloop transitions, 344 changer transitions 0/6819 dead transitions. [2022-12-11 23:46:43,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 6819 transitions, 211805 flow [2022-12-11 23:46:43,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:46:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:46:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2158 transitions. [2022-12-11 23:46:43,778 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7751436781609196 [2022-12-11 23:46:43,779 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 291 predicate places. [2022-12-11 23:46:43,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 6819 transitions, 211805 flow [2022-12-11 23:46:44,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 6819 transitions, 211805 flow [2022-12-11 23:46:44,077 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 6819 transitions, 211805 flow [2022-12-11 23:46:44,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:44,078 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:46:44,078 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:46:44,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-11 23:46:44,078 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:46:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:46:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash -532833019, now seen corresponding path program 14 times [2022-12-11 23:46:44,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:46:44,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188129145] [2022-12-11 23:46:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:46:44,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:46:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:46:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:46:44,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:46:44,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188129145] [2022-12-11 23:46:44,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188129145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:46:44,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:46:44,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 23:46:44,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630082645] [2022-12-11 23:46:44,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:46:44,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 23:46:44,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:46:44,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 23:46:44,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-12-11 23:46:44,747 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2022-12-11 23:46:44,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 6819 transitions, 211805 flow. Second operand has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:44,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:46:44,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2022-12-11 23:46:44,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:47:36,496 INFO L130 PetriNetUnfolder]: 15852/39404 cut-off events. [2022-12-11 23:47:36,497 INFO L131 PetriNetUnfolder]: For 681964/736225 co-relation queries the response was YES. [2022-12-11 23:47:36,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472995 conditions, 39404 events. 15852/39404 cut-off events. For 681964/736225 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 463515 event pairs, 88 based on Foata normal form. 169/39432 useless extension candidates. Maximal degree in co-relation 370936. Up to 17893 conditions per place. [2022-12-11 23:47:36,842 INFO L137 encePairwiseOnDemand]: 158/174 looper letters, 5079 selfloop transitions, 355 changer transitions 0/7175 dead transitions. [2022-12-11 23:47:36,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 7175 transitions, 233705 flow [2022-12-11 23:47:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:47:36,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:47:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2157 transitions. [2022-12-11 23:47:36,844 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7747844827586207 [2022-12-11 23:47:36,845 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 306 predicate places. [2022-12-11 23:47:36,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 468 places, 7175 transitions, 233705 flow [2022-12-11 23:47:37,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 7175 transitions, 233705 flow [2022-12-11 23:47:37,289 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 7175 transitions, 233705 flow [2022-12-11 23:47:37,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:37,290 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:47:37,290 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:47:37,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-11 23:47:37,290 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:47:37,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:47:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash 433456813, now seen corresponding path program 15 times [2022-12-11 23:47:37,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:47:37,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368883280] [2022-12-11 23:47:37,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:47:37,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:47:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:47:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:47:38,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:47:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368883280] [2022-12-11 23:47:38,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368883280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:47:38,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:47:38,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-12-11 23:47:38,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358870574] [2022-12-11 23:47:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:47:38,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-11 23:47:38,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:47:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-11 23:47:38,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-12-11 23:47:38,359 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 174 [2022-12-11 23:47:38,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 7175 transitions, 233705 flow. Second operand has 24 states, 24 states have (on average 76.58333333333333) internal successors, (1838), 24 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:38,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:47:38,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 174 [2022-12-11 23:47:38,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:48:40,671 INFO L130 PetriNetUnfolder]: 18013/46271 cut-off events. [2022-12-11 23:48:40,671 INFO L131 PetriNetUnfolder]: For 929039/1008788 co-relation queries the response was YES. [2022-12-11 23:48:40,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579238 conditions, 46271 events. 18013/46271 cut-off events. For 929039/1008788 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 567411 event pairs, 111 based on Foata normal form. 396/46511 useless extension candidates. Maximal degree in co-relation 443648. Up to 21594 conditions per place. [2022-12-11 23:48:41,227 INFO L137 encePairwiseOnDemand]: 140/174 looper letters, 5601 selfloop transitions, 1388 changer transitions 0/8250 dead transitions. [2022-12-11 23:48:41,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 8250 transitions, 285273 flow [2022-12-11 23:48:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-11 23:48:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-11 23:48:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2467 transitions. [2022-12-11 23:48:41,229 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45736002966258804 [2022-12-11 23:48:41,229 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 336 predicate places. [2022-12-11 23:48:41,230 INFO L82 GeneralOperation]: Start removeDead. Operand has 498 places, 8250 transitions, 285273 flow [2022-12-11 23:48:41,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 8250 transitions, 285273 flow [2022-12-11 23:48:41,610 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 8250 transitions, 285273 flow [2022-12-11 23:48:41,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 76.58333333333333) internal successors, (1838), 24 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:41,610 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:48:41,611 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:48:41,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-11 23:48:41,611 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:48:41,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:48:41,611 INFO L85 PathProgramCache]: Analyzing trace with hash -269245817, now seen corresponding path program 16 times [2022-12-11 23:48:41,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:48:41,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27845094] [2022-12-11 23:48:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:48:41,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:48:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:48:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:48:42,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:48:42,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27845094] [2022-12-11 23:48:42,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27845094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:48:42,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:48:42,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 23:48:42,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501645057] [2022-12-11 23:48:42,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:48:42,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 23:48:42,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:48:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 23:48:42,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-12-11 23:48:42,019 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-12-11 23:48:42,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 8250 transitions, 285273 flow. Second operand has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:42,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:48:42,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-12-11 23:48:42,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:50:05,727 INFO L130 PetriNetUnfolder]: 17990/46315 cut-off events. [2022-12-11 23:50:05,727 INFO L131 PetriNetUnfolder]: For 1006973/1054957 co-relation queries the response was YES. [2022-12-11 23:50:05,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605106 conditions, 46315 events. 17990/46315 cut-off events. For 1006973/1054957 co-relation queries the response was YES. Maximal size of possible extension queue 2038. Compared 568821 event pairs, 114 based on Foata normal form. 206/46362 useless extension candidates. Maximal degree in co-relation 465375. Up to 21621 conditions per place. [2022-12-11 23:50:06,156 INFO L137 encePairwiseOnDemand]: 160/174 looper letters, 5450 selfloop transitions, 479 changer transitions 0/8270 dead transitions. [2022-12-11 23:50:06,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 8270 transitions, 297931 flow [2022-12-11 23:50:06,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:50:06,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:50:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1878 transitions. [2022-12-11 23:50:06,158 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.830238726790451 [2022-12-11 23:50:06,158 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 348 predicate places. [2022-12-11 23:50:06,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 510 places, 8270 transitions, 297931 flow [2022-12-11 23:50:06,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 510 places, 8270 transitions, 297931 flow [2022-12-11 23:50:06,580 INFO L495 AbstractCegarLoop]: Abstraction has has 510 places, 8270 transitions, 297931 flow [2022-12-11 23:50:06,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:50:06,581 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:50:06,581 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:50:06,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-11 23:50:06,581 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:50:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:50:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1121911275, now seen corresponding path program 17 times [2022-12-11 23:50:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:50:06,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556709417] [2022-12-11 23:50:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:50:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:50:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:50:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:50:07,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:50:07,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556709417] [2022-12-11 23:50:07,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556709417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:50:07,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:50:07,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 23:50:07,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607345949] [2022-12-11 23:50:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:50:07,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 23:50:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:50:07,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 23:50:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-12-11 23:50:07,107 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2022-12-11 23:50:07,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 8270 transitions, 297931 flow. Second operand has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:50:07,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:50:07,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2022-12-11 23:50:07,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:51:24,732 INFO L130 PetriNetUnfolder]: 17335/45168 cut-off events. [2022-12-11 23:51:24,732 INFO L131 PetriNetUnfolder]: For 1074676/1124032 co-relation queries the response was YES. [2022-12-11 23:51:24,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611900 conditions, 45168 events. 17335/45168 cut-off events. For 1074676/1124032 co-relation queries the response was YES. Maximal size of possible extension queue 1998. Compared 556439 event pairs, 114 based on Foata normal form. 171/45179 useless extension candidates. Maximal degree in co-relation 467915. Up to 21454 conditions per place. [2022-12-11 23:51:25,144 INFO L137 encePairwiseOnDemand]: 159/174 looper letters, 5622 selfloop transitions, 381 changer transitions 0/8089 dead transitions. [2022-12-11 23:51:25,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 8089 transitions, 303127 flow [2022-12-11 23:51:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:51:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:51:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2151 transitions. [2022-12-11 23:51:25,146 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7726293103448276 [2022-12-11 23:51:25,146 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 363 predicate places. [2022-12-11 23:51:25,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 525 places, 8089 transitions, 303127 flow [2022-12-11 23:51:25,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 525 places, 8089 transitions, 303127 flow [2022-12-11 23:51:25,531 INFO L495 AbstractCegarLoop]: Abstraction has has 525 places, 8089 transitions, 303127 flow [2022-12-11 23:51:25,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:51:25,532 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:51:25,532 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:51:25,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-11 23:51:25,532 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:51:25,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:51:25,532 INFO L85 PathProgramCache]: Analyzing trace with hash -23510067, now seen corresponding path program 18 times [2022-12-11 23:51:25,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:51:25,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615451401] [2022-12-11 23:51:25,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:51:25,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:51:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:51:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:51:26,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:51:26,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615451401] [2022-12-11 23:51:26,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615451401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:51:26,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:51:26,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 23:51:26,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770688553] [2022-12-11 23:51:26,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:51:26,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 23:51:26,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:51:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 23:51:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-12-11 23:51:26,028 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2022-12-11 23:51:26,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 8089 transitions, 303127 flow. Second operand has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:51:26,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:51:26,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2022-12-11 23:51:26,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:52:30,688 INFO L130 PetriNetUnfolder]: 16235/42238 cut-off events. [2022-12-11 23:52:30,688 INFO L131 PetriNetUnfolder]: For 1091702/1139867 co-relation queries the response was YES. [2022-12-11 23:52:30,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595643 conditions, 42238 events. 16235/42238 cut-off events. For 1091702/1139867 co-relation queries the response was YES. Maximal size of possible extension queue 1793. Compared 513382 event pairs, 100 based on Foata normal form. 160/42247 useless extension candidates. Maximal degree in co-relation 457650. Up to 21454 conditions per place. [2022-12-11 23:52:31,064 INFO L137 encePairwiseOnDemand]: 159/174 looper letters, 5273 selfloop transitions, 342 changer transitions 0/7667 dead transitions. [2022-12-11 23:52:31,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 7667 transitions, 297605 flow [2022-12-11 23:52:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:52:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:52:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2153 transitions. [2022-12-11 23:52:31,065 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7733477011494253 [2022-12-11 23:52:31,065 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 378 predicate places. [2022-12-11 23:52:31,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 540 places, 7667 transitions, 297605 flow [2022-12-11 23:52:31,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 540 places, 7667 transitions, 297605 flow [2022-12-11 23:52:31,420 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 7667 transitions, 297605 flow [2022-12-11 23:52:31,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.5) internal successors, (1799), 14 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:52:31,420 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:52:31,420 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:52:31,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-11 23:52:31,420 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:52:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:52:31,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1165749199, now seen corresponding path program 19 times [2022-12-11 23:52:31,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:52:31,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419545355] [2022-12-11 23:52:31,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:52:31,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:52:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:52:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:52:31,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:52:31,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419545355] [2022-12-11 23:52:31,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419545355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:52:31,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:52:31,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 23:52:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251854971] [2022-12-11 23:52:31,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:52:31,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 23:52:31,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:52:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 23:52:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-12-11 23:52:31,788 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-12-11 23:52:31,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 7667 transitions, 297605 flow. Second operand has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:52:31,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:52:31,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-12-11 23:52:31,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:54:05,740 INFO L130 PetriNetUnfolder]: 23159/59817 cut-off events. [2022-12-11 23:54:05,740 INFO L131 PetriNetUnfolder]: For 1663127/1748769 co-relation queries the response was YES. [2022-12-11 23:54:05,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882342 conditions, 59817 events. 23159/59817 cut-off events. For 1663127/1748769 co-relation queries the response was YES. Maximal size of possible extension queue 2614. Compared 764244 event pairs, 154 based on Foata normal form. 183/59774 useless extension candidates. Maximal degree in co-relation 678029. Up to 34413 conditions per place. [2022-12-11 23:54:06,358 INFO L137 encePairwiseOnDemand]: 160/174 looper letters, 7634 selfloop transitions, 196 changer transitions 0/10126 dead transitions. [2022-12-11 23:54:06,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 10126 transitions, 417808 flow [2022-12-11 23:54:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:54:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:54:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1895 transitions. [2022-12-11 23:54:06,360 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8377541998231653 [2022-12-11 23:54:06,360 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 390 predicate places. [2022-12-11 23:54:06,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 552 places, 10126 transitions, 417808 flow [2022-12-11 23:54:07,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 552 places, 10126 transitions, 417808 flow [2022-12-11 23:54:07,015 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 10126 transitions, 417808 flow [2022-12-11 23:54:07,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:54:07,015 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:54:07,015 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:54:07,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-11 23:54:07,016 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:54:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:54:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash -154670653, now seen corresponding path program 20 times [2022-12-11 23:54:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:54:07,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560547215] [2022-12-11 23:54:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:54:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:54:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:54:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:54:08,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:54:08,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560547215] [2022-12-11 23:54:08,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560547215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:54:08,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:54:08,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 23:54:08,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133501787] [2022-12-11 23:54:08,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:54:08,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 23:54:08,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:54:08,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 23:54:08,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2022-12-11 23:54:08,603 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2022-12-11 23:54:08,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 10126 transitions, 417808 flow. Second operand has 27 states, 27 states have (on average 70.51851851851852) internal successors, (1904), 27 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:54:08,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:54:08,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2022-12-11 23:54:08,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:57:13,892 INFO L130 PetriNetUnfolder]: 23256/60353 cut-off events. [2022-12-11 23:57:13,892 INFO L131 PetriNetUnfolder]: For 1812810/1940641 co-relation queries the response was YES. [2022-12-11 23:57:14,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934513 conditions, 60353 events. 23256/60353 cut-off events. For 1812810/1940641 co-relation queries the response was YES. Maximal size of possible extension queue 2649. Compared 774475 event pairs, 149 based on Foata normal form. 353/60490 useless extension candidates. Maximal degree in co-relation 716766. Up to 34667 conditions per place. [2022-12-11 23:57:14,516 INFO L137 encePairwiseOnDemand]: 142/174 looper letters, 9973 selfloop transitions, 911 changer transitions 0/10934 dead transitions. [2022-12-11 23:57:14,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 10934 transitions, 465761 flow [2022-12-11 23:57:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-11 23:57:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-11 23:57:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2658 transitions. [2022-12-11 23:57:14,519 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.44929006085192696 [2022-12-11 23:57:14,519 INFO L295 CegarLoopForPetriNet]: 162 programPoint places, 423 predicate places. [2022-12-11 23:57:14,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 585 places, 10934 transitions, 465761 flow [2022-12-11 23:57:15,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 585 places, 10934 transitions, 465761 flow [2022-12-11 23:57:15,110 INFO L495 AbstractCegarLoop]: Abstraction has has 585 places, 10934 transitions, 465761 flow [2022-12-11 23:57:15,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 70.51851851851852) internal successors, (1904), 27 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:57:15,110 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:57:15,110 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:57:15,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-11 23:57:15,110 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:57:15,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:57:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash -50632127, now seen corresponding path program 21 times [2022-12-11 23:57:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:57:15,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972276818] [2022-12-11 23:57:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:57:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:57:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:57:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:57:15,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:57:15,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972276818] [2022-12-11 23:57:15,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972276818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:57:15,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:57:15,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 23:57:15,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559811044] [2022-12-11 23:57:15,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:57:15,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 23:57:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:57:15,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 23:57:15,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-12-11 23:57:15,606 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2022-12-11 23:57:15,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 10934 transitions, 465761 flow. Second operand has 13 states, 13 states have (on average 137.07692307692307) internal successors, (1782), 13 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:57:15,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:57:15,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2022-12-11 23:57:15,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-11 23:57:28,117 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 [2022-12-11 23:57:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:57:28,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-11 23:57:28,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-11 23:57:28,122 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). [2022-12-11 23:57:28,123 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-11 23:57:28,123 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-11 23:57:28,123 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-11 23:57:28,124 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-11 23:57:28,124 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-11 23:57:28,124 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-11 23:57:28,124 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-11 23:57:28,124 INFO L445 BasicCegarLoop]: Path program histogram: [21, 1, 1, 1, 1, 1] [2022-12-11 23:57:28,127 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:57:28,127 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:57:28,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:57:28 BasicIcfg [2022-12-11 23:57:28,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:57:28,130 INFO L158 Benchmark]: Toolchain (without parser) took 831838.26ms. Allocated memory was 178.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 141.8MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-12-11 23:57:28,130 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:57:28,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.17ms. Allocated memory is still 178.3MB. Free memory was 141.8MB in the beginning and 85.7MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-11 23:57:28,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.29ms. Allocated memory is still 178.3MB. Free memory was 85.7MB in the beginning and 82.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 23:57:28,131 INFO L158 Benchmark]: Boogie Preprocessor took 40.01ms. Allocated memory is still 178.3MB. Free memory was 82.0MB in the beginning and 79.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 23:57:28,131 INFO L158 Benchmark]: RCFGBuilder took 546.33ms. Allocated memory is still 178.3MB. Free memory was 79.4MB in the beginning and 151.7MB in the end (delta: -72.3MB). Peak memory consumption was 29.8MB. Max. memory is 8.0GB. [2022-12-11 23:57:28,131 INFO L158 Benchmark]: TraceAbstraction took 830342.00ms. Allocated memory was 178.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 150.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-12-11 23:57:28,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 829.17ms. Allocated memory is still 178.3MB. Free memory was 141.8MB in the beginning and 85.7MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.29ms. Allocated memory is still 178.3MB. Free memory was 85.7MB in the beginning and 82.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.01ms. Allocated memory is still 178.3MB. Free memory was 82.0MB in the beginning and 79.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 546.33ms. Allocated memory is still 178.3MB. Free memory was 79.4MB in the beginning and 151.7MB in the end (delta: -72.3MB). Peak memory consumption was 29.8MB. Max. memory is 8.0GB. * TraceAbstraction took 830342.00ms. Allocated memory was 178.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 150.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 135/174 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 81758 conditions, 4887 events (2344/4886 cut-off events. For 158194/256707 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 48146 event pairs, 37 based on Foata normal form. 26/5860 useless extension candidates. Maximal degree in co-relation 81156. Up to 2159 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 183 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 4.9s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 830.2s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.0s, AutomataDifference: 804.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9235 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9235 mSDsluCounter, 14690 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12717 mSDsCounter, 543 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15930 IncrementalHoareTripleChecker+Invalid, 16473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 543 mSolverCounterUnsat, 1973 mSDtfsCounter, 15930 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 867 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 767 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3558 ImplicationChecksByTransitivity, 25.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=465761occurred in iteration=25, InterpolantAutomatonStates: 496, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 970 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 2757 NumberOfCodeBlocks, 2757 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2731 ConstructedInterpolants, 0 QuantifiedInterpolants, 26654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown