/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 13:15:38,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 13:15:38,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 13:15:38,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 13:15:38,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 13:15:38,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 13:15:38,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 13:15:38,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 13:15:38,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 13:15:38,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 13:15:38,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 13:15:38,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 13:15:38,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 13:15:38,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 13:15:38,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 13:15:38,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 13:15:38,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 13:15:38,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 13:15:38,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 13:15:38,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 13:15:38,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 13:15:38,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 13:15:38,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 13:15:38,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 13:15:38,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 13:15:38,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 13:15:38,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 13:15:38,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 13:15:38,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 13:15:38,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 13:15:38,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 13:15:38,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 13:15:38,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 13:15:38,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 13:15:38,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 13:15:38,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 13:15:38,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 13:15:38,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 13:15:38,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 13:15:38,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 13:15:38,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 13:15:38,234 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-After.epf [2022-01-19 13:15:38,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 13:15:38,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 13:15:38,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 13:15:38,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 13:15:38,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 13:15:38,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 13:15:38,268 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 13:15:38,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 13:15:38,268 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 13:15:38,269 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 13:15:38,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 13:15:38,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 13:15:38,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 13:15:38,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 13:15:38,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 13:15:38,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:15:38,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 13:15:38,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 13:15:38,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 13:15:38,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 13:15:38,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 13:15:38,272 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 13:15:38,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 13:15:38,272 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 13:15:38,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 13:15:38,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 13:15:38,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 13:15:38,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 13:15:38,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 13:15:38,517 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 13:15:38,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2022-01-19 13:15:38,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8cee9014/96339978e6ec463a9e80d8b275e8a496/FLAGac2bf9d83 [2022-01-19 13:15:38,971 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 13:15:38,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2022-01-19 13:15:38,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8cee9014/96339978e6ec463a9e80d8b275e8a496/FLAGac2bf9d83 [2022-01-19 13:15:38,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8cee9014/96339978e6ec463a9e80d8b275e8a496 [2022-01-19 13:15:38,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 13:15:39,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 13:15:39,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 13:15:39,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 13:15:39,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 13:15:39,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:15:38" (1/1) ... [2022-01-19 13:15:39,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7d6ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39, skipping insertion in model container [2022-01-19 13:15:39,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:15:38" (1/1) ... [2022-01-19 13:15:39,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 13:15:39,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 13:15:39,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-01-19 13:15:39,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:15:39,201 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 13:15:39,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-01-19 13:15:39,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:15:39,231 INFO L208 MainTranslator]: Completed translation [2022-01-19 13:15:39,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39 WrapperNode [2022-01-19 13:15:39,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 13:15:39,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 13:15:39,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 13:15:39,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 13:15:39,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,268 INFO L137 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 179 [2022-01-19 13:15:39,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 13:15:39,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 13:15:39,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 13:15:39,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 13:15:39,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 13:15:39,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 13:15:39,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 13:15:39,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 13:15:39,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (1/1) ... [2022-01-19 13:15:39,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:15:39,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:15:39,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 13:15:39,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 13:15:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 13:15:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 13:15:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 13:15:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 13:15:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 13:15:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 13:15:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 13:15:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 13:15:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 13:15:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 13:15:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 13:15:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 13:15:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 13:15:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 13:15:39,380 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 13:15:39,511 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 13:15:39,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 13:15:39,785 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 13:15:39,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 13:15:39,794 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 13:15:39,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:15:39 BoogieIcfgContainer [2022-01-19 13:15:39,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 13:15:39,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 13:15:39,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 13:15:39,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 13:15:39,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:15:38" (1/3) ... [2022-01-19 13:15:39,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546adb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:15:39, skipping insertion in model container [2022-01-19 13:15:39,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:15:39" (2/3) ... [2022-01-19 13:15:39,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546adb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:15:39, skipping insertion in model container [2022-01-19 13:15:39,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:15:39" (3/3) ... [2022-01-19 13:15:39,803 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2022-01-19 13:15:39,807 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 13:15:39,807 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 13:15:39,807 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 13:15:39,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,852 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,853 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,856 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,856 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,856 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,856 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,856 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,857 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,858 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,858 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,858 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,858 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,858 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,863 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,863 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,863 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,863 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,864 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,868 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,874 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,874 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,875 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,875 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,875 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,875 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,875 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,876 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,876 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,876 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,877 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,880 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,880 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,881 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,888 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,892 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,892 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,892 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,892 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,892 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,893 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,893 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,893 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,893 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,893 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,893 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,894 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,894 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,894 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,895 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,895 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,895 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,895 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,895 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,899 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,903 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,905 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,906 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,906 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,906 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,906 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,906 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,912 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,912 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,912 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,915 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,916 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,917 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,918 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,919 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,920 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,921 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,921 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,921 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,921 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,921 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:15:39,941 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 13:15:39,989 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 13:15:40,003 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 13:15:40,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 13:15:40,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 235 transitions, 494 flow [2022-01-19 13:15:40,129 INFO L129 PetriNetUnfolder]: 17/232 cut-off events. [2022-01-19 13:15:40,130 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 13:15:40,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 232 events. 17/232 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 509 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2022-01-19 13:15:40,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 235 transitions, 494 flow [2022-01-19 13:15:40,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 221 transitions, 460 flow [2022-01-19 13:15:40,210 INFO L129 PetriNetUnfolder]: 17/220 cut-off events. [2022-01-19 13:15:40,210 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 13:15:40,210 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:40,211 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:40,211 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:40,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:40,216 INFO L85 PathProgramCache]: Analyzing trace with hash 922899840, now seen corresponding path program 1 times [2022-01-19 13:15:40,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:40,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748349266] [2022-01-19 13:15:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:40,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:40,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748349266] [2022-01-19 13:15:40,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748349266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:40,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:40,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:15:40,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596686822] [2022-01-19 13:15:40,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:40,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:15:40,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:40,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:15:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:15:40,508 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 235 [2022-01-19 13:15:40,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 221 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:40,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 235 [2022-01-19 13:15:40,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:40,639 INFO L129 PetriNetUnfolder]: 42/624 cut-off events. [2022-01-19 13:15:40,639 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-01-19 13:15:40,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 624 events. 42/624 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3570 event pairs, 7 based on Foata normal form. 42/601 useless extension candidates. Maximal degree in co-relation 541. Up to 29 conditions per place. [2022-01-19 13:15:40,649 INFO L132 encePairwiseOnDemand]: 221/235 looper letters, 15 selfloop transitions, 4 changer transitions 2/220 dead transitions. [2022-01-19 13:15:40,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 220 transitions, 511 flow [2022-01-19 13:15:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:15:40,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:15:40,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2022-01-19 13:15:40,662 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9631205673758865 [2022-01-19 13:15:40,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 679 transitions. [2022-01-19 13:15:40,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 679 transitions. [2022-01-19 13:15:40,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:40,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 679 transitions. [2022-01-19 13:15:40,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,679 INFO L186 Difference]: Start difference. First operand has 214 places, 221 transitions, 460 flow. Second operand 3 states and 679 transitions. [2022-01-19 13:15:40,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 220 transitions, 511 flow [2022-01-19 13:15:40,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 220 transitions, 489 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 13:15:40,688 INFO L242 Difference]: Finished difference. Result has 212 places, 213 transitions, 456 flow [2022-01-19 13:15:40,690 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=212, PETRI_TRANSITIONS=213} [2022-01-19 13:15:40,694 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-01-19 13:15:40,694 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 213 transitions, 456 flow [2022-01-19 13:15:40,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,695 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:40,695 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:40,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 13:15:40,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:40,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:40,696 INFO L85 PathProgramCache]: Analyzing trace with hash 561065498, now seen corresponding path program 1 times [2022-01-19 13:15:40,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:40,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8676095] [2022-01-19 13:15:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:40,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:40,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:40,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8676095] [2022-01-19 13:15:40,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8676095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:40,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:40,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:15:40,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099374314] [2022-01-19 13:15:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:40,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:15:40,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:40,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:15:40,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:15:40,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 235 [2022-01-19 13:15:40,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 213 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:40,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 235 [2022-01-19 13:15:40,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:40,915 INFO L129 PetriNetUnfolder]: 36/549 cut-off events. [2022-01-19 13:15:40,915 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-01-19 13:15:40,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 549 events. 36/549 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2885 event pairs, 7 based on Foata normal form. 5/509 useless extension candidates. Maximal degree in co-relation 429. Up to 24 conditions per place. [2022-01-19 13:15:40,959 INFO L132 encePairwiseOnDemand]: 231/235 looper letters, 19 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2022-01-19 13:15:40,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 220 transitions, 521 flow [2022-01-19 13:15:40,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:15:40,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:15:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2022-01-19 13:15:40,981 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9404255319148936 [2022-01-19 13:15:40,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 663 transitions. [2022-01-19 13:15:40,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 663 transitions. [2022-01-19 13:15:40,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:40,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 663 transitions. [2022-01-19 13:15:40,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,984 INFO L186 Difference]: Start difference. First operand has 212 places, 213 transitions, 456 flow. Second operand 3 states and 663 transitions. [2022-01-19 13:15:40,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 220 transitions, 521 flow [2022-01-19 13:15:40,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 220 transitions, 513 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:40,989 INFO L242 Difference]: Finished difference. Result has 212 places, 215 transitions, 472 flow [2022-01-19 13:15:40,990 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=212, PETRI_TRANSITIONS=215} [2022-01-19 13:15:40,990 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-01-19 13:15:40,990 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 215 transitions, 472 flow [2022-01-19 13:15:40,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:40,991 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:40,991 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:40,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 13:15:40,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:40,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1061366140, now seen corresponding path program 1 times [2022-01-19 13:15:40,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:40,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18727682] [2022-01-19 13:15:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:40,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:41,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:41,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18727682] [2022-01-19 13:15:41,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18727682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:41,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:41,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:15:41,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802378364] [2022-01-19 13:15:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:41,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:15:41,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:15:41,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:15:41,087 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 235 [2022-01-19 13:15:41,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 215 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:41,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 235 [2022-01-19 13:15:41,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:41,272 INFO L129 PetriNetUnfolder]: 105/1640 cut-off events. [2022-01-19 13:15:41,272 INFO L130 PetriNetUnfolder]: For 66/84 co-relation queries the response was YES. [2022-01-19 13:15:41,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1640 events. 105/1640 cut-off events. For 66/84 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14315 event pairs, 32 based on Foata normal form. 0/1498 useless extension candidates. Maximal degree in co-relation 880. Up to 112 conditions per place. [2022-01-19 13:15:41,286 INFO L132 encePairwiseOnDemand]: 227/235 looper letters, 20 selfloop transitions, 4 changer transitions 0/223 dead transitions. [2022-01-19 13:15:41,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 223 transitions, 540 flow [2022-01-19 13:15:41,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:15:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:15:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2022-01-19 13:15:41,289 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2022-01-19 13:15:41,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2022-01-19 13:15:41,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2022-01-19 13:15:41,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:41,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2022-01-19 13:15:41,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,296 INFO L186 Difference]: Start difference. First operand has 212 places, 215 transitions, 472 flow. Second operand 3 states and 658 transitions. [2022-01-19 13:15:41,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 223 transitions, 540 flow [2022-01-19 13:15:41,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 223 transitions, 534 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 13:15:41,301 INFO L242 Difference]: Finished difference. Result has 215 places, 219 transitions, 506 flow [2022-01-19 13:15:41,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=215, PETRI_TRANSITIONS=219} [2022-01-19 13:15:41,303 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2022-01-19 13:15:41,303 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 219 transitions, 506 flow [2022-01-19 13:15:41,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,304 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:41,304 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:41,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 13:15:41,305 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:41,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:41,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1317949202, now seen corresponding path program 2 times [2022-01-19 13:15:41,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:41,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139803258] [2022-01-19 13:15:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:41,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:41,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:41,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139803258] [2022-01-19 13:15:41,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139803258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:41,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:41,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:15:41,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595763800] [2022-01-19 13:15:41,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:41,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:15:41,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:41,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:15:41,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:15:41,393 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 235 [2022-01-19 13:15:41,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 219 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:41,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 235 [2022-01-19 13:15:41,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:41,539 INFO L129 PetriNetUnfolder]: 84/1083 cut-off events. [2022-01-19 13:15:41,539 INFO L130 PetriNetUnfolder]: For 196/205 co-relation queries the response was YES. [2022-01-19 13:15:41,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1359 conditions, 1083 events. 84/1083 cut-off events. For 196/205 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7515 event pairs, 26 based on Foata normal form. 24/1023 useless extension candidates. Maximal degree in co-relation 584. Up to 73 conditions per place. [2022-01-19 13:15:41,551 INFO L132 encePairwiseOnDemand]: 225/235 looper letters, 22 selfloop transitions, 6 changer transitions 0/227 dead transitions. [2022-01-19 13:15:41,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 227 transitions, 590 flow [2022-01-19 13:15:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:15:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:15:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2022-01-19 13:15:41,553 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2022-01-19 13:15:41,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2022-01-19 13:15:41,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2022-01-19 13:15:41,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:41,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2022-01-19 13:15:41,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,557 INFO L186 Difference]: Start difference. First operand has 215 places, 219 transitions, 506 flow. Second operand 3 states and 658 transitions. [2022-01-19 13:15:41,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 227 transitions, 590 flow [2022-01-19 13:15:41,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 227 transitions, 586 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 13:15:41,564 INFO L242 Difference]: Finished difference. Result has 218 places, 223 transitions, 558 flow [2022-01-19 13:15:41,564 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=218, PETRI_TRANSITIONS=223} [2022-01-19 13:15:41,565 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 4 predicate places. [2022-01-19 13:15:41,565 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 223 transitions, 558 flow [2022-01-19 13:15:41,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,566 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:41,566 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:41,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 13:15:41,566 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:41,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:41,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1660317322, now seen corresponding path program 1 times [2022-01-19 13:15:41,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:41,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124184656] [2022-01-19 13:15:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:41,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:41,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:41,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124184656] [2022-01-19 13:15:41,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124184656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:41,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:41,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 13:15:41,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574288896] [2022-01-19 13:15:41,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:41,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 13:15:41,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:41,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 13:15:41,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 13:15:41,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 235 [2022-01-19 13:15:41,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 223 transitions, 558 flow. Second operand has 7 states, 7 states have (on average 204.85714285714286) internal successors, (1434), 7 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:41,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 235 [2022-01-19 13:15:41,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:41,939 INFO L129 PetriNetUnfolder]: 73/968 cut-off events. [2022-01-19 13:15:41,940 INFO L130 PetriNetUnfolder]: For 87/268 co-relation queries the response was YES. [2022-01-19 13:15:41,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 968 events. 73/968 cut-off events. For 87/268 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6398 event pairs, 18 based on Foata normal form. 7/912 useless extension candidates. Maximal degree in co-relation 910. Up to 92 conditions per place. [2022-01-19 13:15:41,950 INFO L132 encePairwiseOnDemand]: 227/235 looper letters, 25 selfloop transitions, 3 changer transitions 14/243 dead transitions. [2022-01-19 13:15:41,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 243 transitions, 695 flow [2022-01-19 13:15:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 13:15:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 13:15:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1861 transitions. [2022-01-19 13:15:41,954 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8799054373522459 [2022-01-19 13:15:41,954 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1861 transitions. [2022-01-19 13:15:41,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1861 transitions. [2022-01-19 13:15:41,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:41,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1861 transitions. [2022-01-19 13:15:41,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 206.77777777777777) internal successors, (1861), 9 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 235.0) internal successors, (2350), 10 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,966 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 235.0) internal successors, (2350), 10 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,966 INFO L186 Difference]: Start difference. First operand has 218 places, 223 transitions, 558 flow. Second operand 9 states and 1861 transitions. [2022-01-19 13:15:41,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 243 transitions, 695 flow [2022-01-19 13:15:41,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 243 transitions, 675 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:41,974 INFO L242 Difference]: Finished difference. Result has 231 places, 225 transitions, 567 flow [2022-01-19 13:15:41,974 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=567, PETRI_PLACES=231, PETRI_TRANSITIONS=225} [2022-01-19 13:15:41,976 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 17 predicate places. [2022-01-19 13:15:41,977 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 225 transitions, 567 flow [2022-01-19 13:15:41,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.85714285714286) internal successors, (1434), 7 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:41,978 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:41,978 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:41,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 13:15:41,978 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:41,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:41,978 INFO L85 PathProgramCache]: Analyzing trace with hash -378725916, now seen corresponding path program 1 times [2022-01-19 13:15:41,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:41,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559431688] [2022-01-19 13:15:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:41,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:42,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:42,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559431688] [2022-01-19 13:15:42,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559431688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:42,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:42,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:42,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065731060] [2022-01-19 13:15:42,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:42,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:42,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:42,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:42,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:42,126 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:42,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 225 transitions, 567 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:42,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:42,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:42,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:42,755 INFO L129 PetriNetUnfolder]: 699/2510 cut-off events. [2022-01-19 13:15:42,755 INFO L130 PetriNetUnfolder]: For 255/314 co-relation queries the response was YES. [2022-01-19 13:15:42,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4055 conditions, 2510 events. 699/2510 cut-off events. For 255/314 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 22083 event pairs, 180 based on Foata normal form. 1/2303 useless extension candidates. Maximal degree in co-relation 4033. Up to 518 conditions per place. [2022-01-19 13:15:42,781 INFO L132 encePairwiseOnDemand]: 221/235 looper letters, 78 selfloop transitions, 46 changer transitions 20/339 dead transitions. [2022-01-19 13:15:42,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 339 transitions, 1126 flow [2022-01-19 13:15:42,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:15:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:15:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4413 transitions. [2022-01-19 13:15:42,790 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.85357833655706 [2022-01-19 13:15:42,790 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4413 transitions. [2022-01-19 13:15:42,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4413 transitions. [2022-01-19 13:15:42,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:42,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4413 transitions. [2022-01-19 13:15:42,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 200.5909090909091) internal successors, (4413), 22 states have internal predecessors, (4413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:42,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:42,810 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:42,810 INFO L186 Difference]: Start difference. First operand has 231 places, 225 transitions, 567 flow. Second operand 22 states and 4413 transitions. [2022-01-19 13:15:42,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 339 transitions, 1126 flow [2022-01-19 13:15:42,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 339 transitions, 1105 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-01-19 13:15:42,817 INFO L242 Difference]: Finished difference. Result has 257 places, 270 transitions, 847 flow [2022-01-19 13:15:42,817 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=847, PETRI_PLACES=257, PETRI_TRANSITIONS=270} [2022-01-19 13:15:42,819 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 43 predicate places. [2022-01-19 13:15:42,819 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 270 transitions, 847 flow [2022-01-19 13:15:42,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:42,820 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:42,820 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:42,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 13:15:42,820 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash -827278968, now seen corresponding path program 1 times [2022-01-19 13:15:42,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:42,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389133828] [2022-01-19 13:15:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:42,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:42,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:42,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:42,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389133828] [2022-01-19 13:15:42,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389133828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:42,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:42,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:15:42,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367477352] [2022-01-19 13:15:42,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:42,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:15:42,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:42,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:15:42,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:15:42,870 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 235 [2022-01-19 13:15:42,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 270 transitions, 847 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:42,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:42,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 235 [2022-01-19 13:15:42,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:43,134 INFO L129 PetriNetUnfolder]: 247/2271 cut-off events. [2022-01-19 13:15:43,134 INFO L130 PetriNetUnfolder]: For 1464/1605 co-relation queries the response was YES. [2022-01-19 13:15:43,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3973 conditions, 2271 events. 247/2271 cut-off events. For 1464/1605 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 19624 event pairs, 33 based on Foata normal form. 24/2156 useless extension candidates. Maximal degree in co-relation 3917. Up to 274 conditions per place. [2022-01-19 13:15:43,158 INFO L132 encePairwiseOnDemand]: 227/235 looper letters, 16 selfloop transitions, 5 changer transitions 1/278 dead transitions. [2022-01-19 13:15:43,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 278 transitions, 912 flow [2022-01-19 13:15:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:15:43,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:15:43,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2022-01-19 13:15:43,160 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9375886524822695 [2022-01-19 13:15:43,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 661 transitions. [2022-01-19 13:15:43,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 661 transitions. [2022-01-19 13:15:43,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:43,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 661 transitions. [2022-01-19 13:15:43,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:43,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:43,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:43,163 INFO L186 Difference]: Start difference. First operand has 257 places, 270 transitions, 847 flow. Second operand 3 states and 661 transitions. [2022-01-19 13:15:43,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 278 transitions, 912 flow [2022-01-19 13:15:43,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 278 transitions, 908 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:43,177 INFO L242 Difference]: Finished difference. Result has 257 places, 272 transitions, 877 flow [2022-01-19 13:15:43,177 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=877, PETRI_PLACES=257, PETRI_TRANSITIONS=272} [2022-01-19 13:15:43,178 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 43 predicate places. [2022-01-19 13:15:43,178 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 272 transitions, 877 flow [2022-01-19 13:15:43,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:43,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:43,179 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:43,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 13:15:43,179 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:43,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:43,179 INFO L85 PathProgramCache]: Analyzing trace with hash 794271370, now seen corresponding path program 1 times [2022-01-19 13:15:43,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:43,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318267460] [2022-01-19 13:15:43,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:43,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:43,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:43,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318267460] [2022-01-19 13:15:43,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318267460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:43,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:43,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:43,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613708617] [2022-01-19 13:15:43,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:43,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:43,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:43,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:43,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:43,314 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:43,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 272 transitions, 877 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:43,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:43,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:43,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:44,052 INFO L129 PetriNetUnfolder]: 1348/4464 cut-off events. [2022-01-19 13:15:44,052 INFO L130 PetriNetUnfolder]: For 4459/4563 co-relation queries the response was YES. [2022-01-19 13:15:44,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10881 conditions, 4464 events. 1348/4464 cut-off events. For 4459/4563 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 43206 event pairs, 681 based on Foata normal form. 4/4060 useless extension candidates. Maximal degree in co-relation 9443. Up to 1917 conditions per place. [2022-01-19 13:15:44,104 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 103 selfloop transitions, 24 changer transitions 16/340 dead transitions. [2022-01-19 13:15:44,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 340 transitions, 1462 flow [2022-01-19 13:15:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:15:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:15:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3201 transitions. [2022-01-19 13:15:44,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8513297872340425 [2022-01-19 13:15:44,111 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3201 transitions. [2022-01-19 13:15:44,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3201 transitions. [2022-01-19 13:15:44,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:44,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3201 transitions. [2022-01-19 13:15:44,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 200.0625) internal successors, (3201), 16 states have internal predecessors, (3201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,124 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,125 INFO L186 Difference]: Start difference. First operand has 257 places, 272 transitions, 877 flow. Second operand 16 states and 3201 transitions. [2022-01-19 13:15:44,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 340 transitions, 1462 flow [2022-01-19 13:15:44,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 340 transitions, 1452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:44,160 INFO L242 Difference]: Finished difference. Result has 281 places, 294 transitions, 1086 flow [2022-01-19 13:15:44,161 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1086, PETRI_PLACES=281, PETRI_TRANSITIONS=294} [2022-01-19 13:15:44,161 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 67 predicate places. [2022-01-19 13:15:44,161 INFO L470 AbstractCegarLoop]: Abstraction has has 281 places, 294 transitions, 1086 flow [2022-01-19 13:15:44,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,162 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:44,162 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:44,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 13:15:44,162 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:44,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:44,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1970093106, now seen corresponding path program 1 times [2022-01-19 13:15:44,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:44,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488011322] [2022-01-19 13:15:44,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:44,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:44,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:44,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488011322] [2022-01-19 13:15:44,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488011322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:44,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:44,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 13:15:44,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703543547] [2022-01-19 13:15:44,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:44,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 13:15:44,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:44,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 13:15:44,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 13:15:44,261 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 235 [2022-01-19 13:15:44,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 294 transitions, 1086 flow. Second operand has 7 states, 7 states have (on average 204.85714285714286) internal successors, (1434), 7 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:44,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 235 [2022-01-19 13:15:44,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:44,658 INFO L129 PetriNetUnfolder]: 338/2548 cut-off events. [2022-01-19 13:15:44,658 INFO L130 PetriNetUnfolder]: For 3217/3462 co-relation queries the response was YES. [2022-01-19 13:15:44,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5956 conditions, 2548 events. 338/2548 cut-off events. For 3217/3462 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24004 event pairs, 90 based on Foata normal form. 30/2429 useless extension candidates. Maximal degree in co-relation 5891. Up to 376 conditions per place. [2022-01-19 13:15:44,689 INFO L132 encePairwiseOnDemand]: 227/235 looper letters, 27 selfloop transitions, 3 changer transitions 14/314 dead transitions. [2022-01-19 13:15:44,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 314 transitions, 1231 flow [2022-01-19 13:15:44,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 13:15:44,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 13:15:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1861 transitions. [2022-01-19 13:15:44,694 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8799054373522459 [2022-01-19 13:15:44,694 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1861 transitions. [2022-01-19 13:15:44,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1861 transitions. [2022-01-19 13:15:44,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:44,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1861 transitions. [2022-01-19 13:15:44,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 206.77777777777777) internal successors, (1861), 9 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 235.0) internal successors, (2350), 10 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,713 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 235.0) internal successors, (2350), 10 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,713 INFO L186 Difference]: Start difference. First operand has 281 places, 294 transitions, 1086 flow. Second operand 9 states and 1861 transitions. [2022-01-19 13:15:44,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 314 transitions, 1231 flow [2022-01-19 13:15:44,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 314 transitions, 1189 flow, removed 21 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:44,743 INFO L242 Difference]: Finished difference. Result has 292 places, 296 transitions, 1075 flow [2022-01-19 13:15:44,743 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1075, PETRI_PLACES=292, PETRI_TRANSITIONS=296} [2022-01-19 13:15:44,744 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 78 predicate places. [2022-01-19 13:15:44,744 INFO L470 AbstractCegarLoop]: Abstraction has has 292 places, 296 transitions, 1075 flow [2022-01-19 13:15:44,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.85714285714286) internal successors, (1434), 7 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,745 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:44,745 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:44,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 13:15:44,745 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:44,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2141648136, now seen corresponding path program 2 times [2022-01-19 13:15:44,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:44,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482276575] [2022-01-19 13:15:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:44,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:44,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:44,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482276575] [2022-01-19 13:15:44,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482276575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:44,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:44,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:15:44,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71019660] [2022-01-19 13:15:44,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:44,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:15:44,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:44,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:15:44,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:15:44,782 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 235 [2022-01-19 13:15:44,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 296 transitions, 1075 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:44,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:44,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 235 [2022-01-19 13:15:44,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:45,034 INFO L129 PetriNetUnfolder]: 272/2148 cut-off events. [2022-01-19 13:15:45,034 INFO L130 PetriNetUnfolder]: For 2326/2455 co-relation queries the response was YES. [2022-01-19 13:15:45,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4737 conditions, 2148 events. 272/2148 cut-off events. For 2326/2455 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 18696 event pairs, 66 based on Foata normal form. 5/2017 useless extension candidates. Maximal degree in co-relation 4669. Up to 323 conditions per place. [2022-01-19 13:15:45,059 INFO L132 encePairwiseOnDemand]: 229/235 looper letters, 19 selfloop transitions, 2 changer transitions 9/304 dead transitions. [2022-01-19 13:15:45,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 304 transitions, 1150 flow [2022-01-19 13:15:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:15:45,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:15:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2022-01-19 13:15:45,061 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9375886524822695 [2022-01-19 13:15:45,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 661 transitions. [2022-01-19 13:15:45,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 661 transitions. [2022-01-19 13:15:45,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:45,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 661 transitions. [2022-01-19 13:15:45,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,064 INFO L186 Difference]: Start difference. First operand has 292 places, 296 transitions, 1075 flow. Second operand 3 states and 661 transitions. [2022-01-19 13:15:45,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 304 transitions, 1150 flow [2022-01-19 13:15:45,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 304 transitions, 1139 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-01-19 13:15:45,084 INFO L242 Difference]: Finished difference. Result has 287 places, 290 transitions, 1048 flow [2022-01-19 13:15:45,085 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1048, PETRI_PLACES=287, PETRI_TRANSITIONS=290} [2022-01-19 13:15:45,085 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 73 predicate places. [2022-01-19 13:15:45,085 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 290 transitions, 1048 flow [2022-01-19 13:15:45,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,086 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:45,086 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:45,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 13:15:45,086 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1017923280, now seen corresponding path program 2 times [2022-01-19 13:15:45,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:45,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709217843] [2022-01-19 13:15:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:45,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:45,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:45,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709217843] [2022-01-19 13:15:45,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709217843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:45,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:45,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:45,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542731185] [2022-01-19 13:15:45,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:45,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:45,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:45,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:45,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:45,214 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:45,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 290 transitions, 1048 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:45,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:45,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:45,866 INFO L129 PetriNetUnfolder]: 909/3496 cut-off events. [2022-01-19 13:15:45,866 INFO L130 PetriNetUnfolder]: For 6993/7098 co-relation queries the response was YES. [2022-01-19 13:15:45,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10260 conditions, 3496 events. 909/3496 cut-off events. For 6993/7098 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 33239 event pairs, 396 based on Foata normal form. 5/3323 useless extension candidates. Maximal degree in co-relation 10027. Up to 1230 conditions per place. [2022-01-19 13:15:45,908 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 119 selfloop transitions, 33 changer transitions 17/362 dead transitions. [2022-01-19 13:15:45,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 362 transitions, 1874 flow [2022-01-19 13:15:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:15:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:15:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3401 transitions. [2022-01-19 13:15:45,915 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8513141426783479 [2022-01-19 13:15:45,915 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3401 transitions. [2022-01-19 13:15:45,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3401 transitions. [2022-01-19 13:15:45,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:45,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3401 transitions. [2022-01-19 13:15:45,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 200.05882352941177) internal successors, (3401), 17 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,928 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,928 INFO L186 Difference]: Start difference. First operand has 287 places, 290 transitions, 1048 flow. Second operand 17 states and 3401 transitions. [2022-01-19 13:15:45,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 362 transitions, 1874 flow [2022-01-19 13:15:45,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 362 transitions, 1856 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-01-19 13:15:45,975 INFO L242 Difference]: Finished difference. Result has 299 places, 319 transitions, 1430 flow [2022-01-19 13:15:45,976 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1430, PETRI_PLACES=299, PETRI_TRANSITIONS=319} [2022-01-19 13:15:45,976 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 85 predicate places. [2022-01-19 13:15:45,976 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 319 transitions, 1430 flow [2022-01-19 13:15:45,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:45,977 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:45,977 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:45,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 13:15:45,977 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1787524280, now seen corresponding path program 3 times [2022-01-19 13:15:45,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:45,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878875821] [2022-01-19 13:15:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:45,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:46,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:46,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878875821] [2022-01-19 13:15:46,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878875821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:46,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:46,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:46,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691501670] [2022-01-19 13:15:46,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:46,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:46,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:46,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:46,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:46,078 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:46,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 319 transitions, 1430 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:46,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:46,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:46,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:46,836 INFO L129 PetriNetUnfolder]: 956/3673 cut-off events. [2022-01-19 13:15:46,836 INFO L130 PetriNetUnfolder]: For 13840/13948 co-relation queries the response was YES. [2022-01-19 13:15:46,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12577 conditions, 3673 events. 956/3673 cut-off events. For 13840/13948 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 35705 event pairs, 356 based on Foata normal form. 2/3506 useless extension candidates. Maximal degree in co-relation 12519. Up to 1115 conditions per place. [2022-01-19 13:15:46,879 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 172 selfloop transitions, 52 changer transitions 28/445 dead transitions. [2022-01-19 13:15:46,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 445 transitions, 2862 flow [2022-01-19 13:15:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:15:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:15:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4791 transitions. [2022-01-19 13:15:46,887 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8494680851063829 [2022-01-19 13:15:46,887 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4791 transitions. [2022-01-19 13:15:46,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4791 transitions. [2022-01-19 13:15:46,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:46,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4791 transitions. [2022-01-19 13:15:46,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 199.625) internal successors, (4791), 24 states have internal predecessors, (4791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:46,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:46,904 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:46,904 INFO L186 Difference]: Start difference. First operand has 299 places, 319 transitions, 1430 flow. Second operand 24 states and 4791 transitions. [2022-01-19 13:15:46,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 445 transitions, 2862 flow [2022-01-19 13:15:46,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 445 transitions, 2682 flow, removed 90 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:46,996 INFO L242 Difference]: Finished difference. Result has 338 places, 349 transitions, 1871 flow [2022-01-19 13:15:46,997 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1871, PETRI_PLACES=338, PETRI_TRANSITIONS=349} [2022-01-19 13:15:46,997 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 124 predicate places. [2022-01-19 13:15:46,998 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 349 transitions, 1871 flow [2022-01-19 13:15:46,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:46,998 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:46,998 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:46,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 13:15:46,999 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:46,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:46,999 INFO L85 PathProgramCache]: Analyzing trace with hash 628042996, now seen corresponding path program 4 times [2022-01-19 13:15:46,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:46,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067032193] [2022-01-19 13:15:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:47,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:47,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:47,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067032193] [2022-01-19 13:15:47,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067032193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:47,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:47,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:47,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221509763] [2022-01-19 13:15:47,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:47,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:47,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:47,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:47,096 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:47,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 349 transitions, 1871 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:47,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:47,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:47,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:47,869 INFO L129 PetriNetUnfolder]: 1022/4043 cut-off events. [2022-01-19 13:15:47,869 INFO L130 PetriNetUnfolder]: For 22848/22957 co-relation queries the response was YES. [2022-01-19 13:15:47,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15322 conditions, 4043 events. 1022/4043 cut-off events. For 22848/22957 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 40278 event pairs, 435 based on Foata normal form. 4/3865 useless extension candidates. Maximal degree in co-relation 15245. Up to 1385 conditions per place. [2022-01-19 13:15:47,922 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 152 selfloop transitions, 59 changer transitions 14/418 dead transitions. [2022-01-19 13:15:47,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 418 transitions, 3053 flow [2022-01-19 13:15:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:15:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:15:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3198 transitions. [2022-01-19 13:15:47,926 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.850531914893617 [2022-01-19 13:15:47,926 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3198 transitions. [2022-01-19 13:15:47,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3198 transitions. [2022-01-19 13:15:47,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:47,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3198 transitions. [2022-01-19 13:15:47,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 199.875) internal successors, (3198), 16 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:47,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:47,938 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:47,938 INFO L186 Difference]: Start difference. First operand has 338 places, 349 transitions, 1871 flow. Second operand 16 states and 3198 transitions. [2022-01-19 13:15:47,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 418 transitions, 3053 flow [2022-01-19 13:15:48,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 418 transitions, 2773 flow, removed 140 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:48,076 INFO L242 Difference]: Finished difference. Result has 360 places, 369 transitions, 2147 flow [2022-01-19 13:15:48,076 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1677, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2147, PETRI_PLACES=360, PETRI_TRANSITIONS=369} [2022-01-19 13:15:48,077 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 146 predicate places. [2022-01-19 13:15:48,077 INFO L470 AbstractCegarLoop]: Abstraction has has 360 places, 369 transitions, 2147 flow [2022-01-19 13:15:48,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:48,077 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:48,077 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:48,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 13:15:48,078 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:48,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:48,078 INFO L85 PathProgramCache]: Analyzing trace with hash -285307232, now seen corresponding path program 5 times [2022-01-19 13:15:48,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:48,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148697389] [2022-01-19 13:15:48,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:48,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:48,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:48,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148697389] [2022-01-19 13:15:48,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148697389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:48,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:48,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:48,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200317561] [2022-01-19 13:15:48,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:48,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:48,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:48,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:48,194 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:48,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 369 transitions, 2147 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:48,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:48,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:48,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:49,139 INFO L129 PetriNetUnfolder]: 1085/4359 cut-off events. [2022-01-19 13:15:49,140 INFO L130 PetriNetUnfolder]: For 25184/25302 co-relation queries the response was YES. [2022-01-19 13:15:49,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16820 conditions, 4359 events. 1085/4359 cut-off events. For 25184/25302 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 44919 event pairs, 457 based on Foata normal form. 2/4174 useless extension candidates. Maximal degree in co-relation 16733. Up to 1423 conditions per place. [2022-01-19 13:15:49,187 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 175 selfloop transitions, 57 changer transitions 23/448 dead transitions. [2022-01-19 13:15:49,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 448 transitions, 3605 flow [2022-01-19 13:15:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:15:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:15:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4190 transitions. [2022-01-19 13:15:49,192 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8490374873353597 [2022-01-19 13:15:49,192 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4190 transitions. [2022-01-19 13:15:49,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4190 transitions. [2022-01-19 13:15:49,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:49,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4190 transitions. [2022-01-19 13:15:49,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 199.52380952380952) internal successors, (4190), 21 states have internal predecessors, (4190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:49,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:49,205 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:49,205 INFO L186 Difference]: Start difference. First operand has 360 places, 369 transitions, 2147 flow. Second operand 21 states and 4190 transitions. [2022-01-19 13:15:49,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 448 transitions, 3605 flow [2022-01-19 13:15:49,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 448 transitions, 3404 flow, removed 89 selfloop flow, removed 3 redundant places. [2022-01-19 13:15:49,363 INFO L242 Difference]: Finished difference. Result has 390 places, 400 transitions, 2737 flow [2022-01-19 13:15:49,364 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1981, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2737, PETRI_PLACES=390, PETRI_TRANSITIONS=400} [2022-01-19 13:15:49,365 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 176 predicate places. [2022-01-19 13:15:49,365 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 400 transitions, 2737 flow [2022-01-19 13:15:49,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:49,365 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:49,365 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:49,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 13:15:49,366 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash -674420230, now seen corresponding path program 6 times [2022-01-19 13:15:49,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135397828] [2022-01-19 13:15:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:49,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:49,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:49,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135397828] [2022-01-19 13:15:49,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135397828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:49,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:49,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:49,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914992837] [2022-01-19 13:15:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:49,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:49,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:49,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:49,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:49,487 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:49,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 400 transitions, 2737 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:49,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:49,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:49,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:50,330 INFO L129 PetriNetUnfolder]: 1128/4533 cut-off events. [2022-01-19 13:15:50,330 INFO L130 PetriNetUnfolder]: For 33947/34077 co-relation queries the response was YES. [2022-01-19 13:15:50,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18730 conditions, 4533 events. 1128/4533 cut-off events. For 33947/34077 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 47272 event pairs, 444 based on Foata normal form. 10/4357 useless extension candidates. Maximal degree in co-relation 18630. Up to 1478 conditions per place. [2022-01-19 13:15:50,387 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 176 selfloop transitions, 87 changer transitions 24/480 dead transitions. [2022-01-19 13:15:50,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 480 transitions, 4186 flow [2022-01-19 13:15:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:15:50,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:15:50,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4385 transitions. [2022-01-19 13:15:50,392 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8481624758220503 [2022-01-19 13:15:50,392 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4385 transitions. [2022-01-19 13:15:50,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4385 transitions. [2022-01-19 13:15:50,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:50,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4385 transitions. [2022-01-19 13:15:50,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 199.3181818181818) internal successors, (4385), 22 states have internal predecessors, (4385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:50,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:50,405 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:50,406 INFO L186 Difference]: Start difference. First operand has 390 places, 400 transitions, 2737 flow. Second operand 22 states and 4385 transitions. [2022-01-19 13:15:50,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 480 transitions, 4186 flow [2022-01-19 13:15:50,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 480 transitions, 3864 flow, removed 161 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:50,624 INFO L242 Difference]: Finished difference. Result has 420 places, 424 transitions, 3103 flow [2022-01-19 13:15:50,625 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3103, PETRI_PLACES=420, PETRI_TRANSITIONS=424} [2022-01-19 13:15:50,625 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 206 predicate places. [2022-01-19 13:15:50,626 INFO L470 AbstractCegarLoop]: Abstraction has has 420 places, 424 transitions, 3103 flow [2022-01-19 13:15:50,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:50,626 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:50,626 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:50,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 13:15:50,627 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:50,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:50,627 INFO L85 PathProgramCache]: Analyzing trace with hash -891029562, now seen corresponding path program 7 times [2022-01-19 13:15:50,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:50,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205754738] [2022-01-19 13:15:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:50,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:50,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:50,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205754738] [2022-01-19 13:15:50,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205754738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:50,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:50,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:50,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157569046] [2022-01-19 13:15:50,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:50,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:50,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:50,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:50,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:50,745 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:50,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 424 transitions, 3103 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:50,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:50,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:50,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:51,643 INFO L129 PetriNetUnfolder]: 1126/4541 cut-off events. [2022-01-19 13:15:51,643 INFO L130 PetriNetUnfolder]: For 37897/38036 co-relation queries the response was YES. [2022-01-19 13:15:51,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19149 conditions, 4541 events. 1126/4541 cut-off events. For 37897/38036 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 47473 event pairs, 452 based on Foata normal form. 10/4362 useless extension candidates. Maximal degree in co-relation 19037. Up to 1539 conditions per place. [2022-01-19 13:15:51,706 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 175 selfloop transitions, 93 changer transitions 23/484 dead transitions. [2022-01-19 13:15:51,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 484 transitions, 4367 flow [2022-01-19 13:15:51,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:15:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:15:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3593 transitions. [2022-01-19 13:15:51,711 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8494089834515366 [2022-01-19 13:15:51,711 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3593 transitions. [2022-01-19 13:15:51,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3593 transitions. [2022-01-19 13:15:51,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:51,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3593 transitions. [2022-01-19 13:15:51,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.61111111111111) internal successors, (3593), 18 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:51,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:51,722 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:51,722 INFO L186 Difference]: Start difference. First operand has 420 places, 424 transitions, 3103 flow. Second operand 18 states and 3593 transitions. [2022-01-19 13:15:51,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 484 transitions, 4367 flow [2022-01-19 13:15:52,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 484 transitions, 4165 flow, removed 99 selfloop flow, removed 3 redundant places. [2022-01-19 13:15:52,027 INFO L242 Difference]: Finished difference. Result has 439 places, 440 transitions, 3514 flow [2022-01-19 13:15:52,028 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=2921, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3514, PETRI_PLACES=439, PETRI_TRANSITIONS=440} [2022-01-19 13:15:52,028 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 225 predicate places. [2022-01-19 13:15:52,030 INFO L470 AbstractCegarLoop]: Abstraction has has 439 places, 440 transitions, 3514 flow [2022-01-19 13:15:52,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:52,030 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:52,030 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:52,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 13:15:52,030 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:52,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1368689700, now seen corresponding path program 8 times [2022-01-19 13:15:52,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:52,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131575973] [2022-01-19 13:15:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:52,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:52,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:52,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:52,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131575973] [2022-01-19 13:15:52,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131575973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:52,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:52,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:52,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940762022] [2022-01-19 13:15:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:52,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:52,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:52,144 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:52,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 440 transitions, 3514 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:52,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:52,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:52,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:53,040 INFO L129 PetriNetUnfolder]: 1190/4797 cut-off events. [2022-01-19 13:15:53,040 INFO L130 PetriNetUnfolder]: For 46454/46595 co-relation queries the response was YES. [2022-01-19 13:15:53,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21265 conditions, 4797 events. 1190/4797 cut-off events. For 46454/46595 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 51100 event pairs, 466 based on Foata normal form. 11/4620 useless extension candidates. Maximal degree in co-relation 21148. Up to 1589 conditions per place. [2022-01-19 13:15:53,106 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 193 selfloop transitions, 98 changer transitions 16/500 dead transitions. [2022-01-19 13:15:53,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 500 transitions, 4923 flow [2022-01-19 13:15:53,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:15:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:15:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3593 transitions. [2022-01-19 13:15:53,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8494089834515366 [2022-01-19 13:15:53,116 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3593 transitions. [2022-01-19 13:15:53,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3593 transitions. [2022-01-19 13:15:53,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:53,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3593 transitions. [2022-01-19 13:15:53,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.61111111111111) internal successors, (3593), 18 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:53,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:53,125 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:53,125 INFO L186 Difference]: Start difference. First operand has 439 places, 440 transitions, 3514 flow. Second operand 18 states and 3593 transitions. [2022-01-19 13:15:53,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 500 transitions, 4923 flow [2022-01-19 13:15:53,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 500 transitions, 4609 flow, removed 137 selfloop flow, removed 4 redundant places. [2022-01-19 13:15:53,508 INFO L242 Difference]: Finished difference. Result has 459 places, 467 transitions, 4100 flow [2022-01-19 13:15:53,508 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=3278, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4100, PETRI_PLACES=459, PETRI_TRANSITIONS=467} [2022-01-19 13:15:53,509 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 245 predicate places. [2022-01-19 13:15:53,509 INFO L470 AbstractCegarLoop]: Abstraction has has 459 places, 467 transitions, 4100 flow [2022-01-19 13:15:53,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:53,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:53,509 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:53,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 13:15:53,510 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:53,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:53,510 INFO L85 PathProgramCache]: Analyzing trace with hash 35895206, now seen corresponding path program 9 times [2022-01-19 13:15:53,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:53,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972127410] [2022-01-19 13:15:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:53,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:53,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:53,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972127410] [2022-01-19 13:15:53,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972127410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:53,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:53,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:53,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953160539] [2022-01-19 13:15:53,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:53,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:53,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:53,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:53,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:53,627 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:53,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 467 transitions, 4100 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:53,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:53,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:53,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:54,690 INFO L129 PetriNetUnfolder]: 1235/5046 cut-off events. [2022-01-19 13:15:54,690 INFO L130 PetriNetUnfolder]: For 46899/47040 co-relation queries the response was YES. [2022-01-19 13:15:54,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22443 conditions, 5046 events. 1235/5046 cut-off events. For 46899/47040 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 54786 event pairs, 361 based on Foata normal form. 5/4881 useless extension candidates. Maximal degree in co-relation 22319. Up to 1101 conditions per place. [2022-01-19 13:15:54,759 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 235 selfloop transitions, 133 changer transitions 26/587 dead transitions. [2022-01-19 13:15:54,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 587 transitions, 6262 flow [2022-01-19 13:15:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:15:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:15:54,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4788 transitions. [2022-01-19 13:15:54,765 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8489361702127659 [2022-01-19 13:15:54,765 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4788 transitions. [2022-01-19 13:15:54,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4788 transitions. [2022-01-19 13:15:54,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:54,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4788 transitions. [2022-01-19 13:15:54,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 199.5) internal successors, (4788), 24 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:54,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:54,777 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:54,777 INFO L186 Difference]: Start difference. First operand has 459 places, 467 transitions, 4100 flow. Second operand 24 states and 4788 transitions. [2022-01-19 13:15:54,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 587 transitions, 6262 flow [2022-01-19 13:15:55,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 587 transitions, 6008 flow, removed 103 selfloop flow, removed 3 redundant places. [2022-01-19 13:15:55,025 INFO L242 Difference]: Finished difference. Result has 496 places, 493 transitions, 4845 flow [2022-01-19 13:15:55,026 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=3879, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=4845, PETRI_PLACES=496, PETRI_TRANSITIONS=493} [2022-01-19 13:15:55,026 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 282 predicate places. [2022-01-19 13:15:55,026 INFO L470 AbstractCegarLoop]: Abstraction has has 496 places, 493 transitions, 4845 flow [2022-01-19 13:15:55,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:55,027 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:55,027 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:55,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 13:15:55,027 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:55,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:55,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2045237596, now seen corresponding path program 10 times [2022-01-19 13:15:55,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:55,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056874862] [2022-01-19 13:15:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:55,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:55,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:55,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056874862] [2022-01-19 13:15:55,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056874862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:55,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:55,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:55,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336709407] [2022-01-19 13:15:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:55,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:55,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:55,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:55,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:55,144 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:55,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 493 transitions, 4845 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:55,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:55,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:55,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:56,213 INFO L129 PetriNetUnfolder]: 1273/5116 cut-off events. [2022-01-19 13:15:56,213 INFO L130 PetriNetUnfolder]: For 56577/56710 co-relation queries the response was YES. [2022-01-19 13:15:56,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24521 conditions, 5116 events. 1273/5116 cut-off events. For 56577/56710 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 55350 event pairs, 487 based on Foata normal form. 2/4923 useless extension candidates. Maximal degree in co-relation 24380. Up to 1660 conditions per place. [2022-01-19 13:15:56,416 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 235 selfloop transitions, 102 changer transitions 17/547 dead transitions. [2022-01-19 13:15:56,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 547 transitions, 6329 flow [2022-01-19 13:15:56,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:15:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:15:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3597 transitions. [2022-01-19 13:15:56,420 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.850354609929078 [2022-01-19 13:15:56,420 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3597 transitions. [2022-01-19 13:15:56,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3597 transitions. [2022-01-19 13:15:56,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:56,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3597 transitions. [2022-01-19 13:15:56,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.83333333333334) internal successors, (3597), 18 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:56,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:56,431 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:56,431 INFO L186 Difference]: Start difference. First operand has 496 places, 493 transitions, 4845 flow. Second operand 18 states and 3597 transitions. [2022-01-19 13:15:56,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 547 transitions, 6329 flow [2022-01-19 13:15:56,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 547 transitions, 6171 flow, removed 76 selfloop flow, removed 3 redundant places. [2022-01-19 13:15:56,893 INFO L242 Difference]: Finished difference. Result has 516 places, 512 transitions, 5427 flow [2022-01-19 13:15:56,894 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=4705, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5427, PETRI_PLACES=516, PETRI_TRANSITIONS=512} [2022-01-19 13:15:56,894 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 302 predicate places. [2022-01-19 13:15:56,894 INFO L470 AbstractCegarLoop]: Abstraction has has 516 places, 512 transitions, 5427 flow [2022-01-19 13:15:56,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:56,895 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:56,895 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:56,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 13:15:56,895 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:56,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -59391672, now seen corresponding path program 11 times [2022-01-19 13:15:56,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:56,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506454804] [2022-01-19 13:15:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:56,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:56,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:56,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506454804] [2022-01-19 13:15:56,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506454804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:56,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:56,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:56,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051226659] [2022-01-19 13:15:56,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:56,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:56,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:56,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:56,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:56,991 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:56,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 512 transitions, 5427 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:56,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:56,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:56,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:15:58,310 INFO L129 PetriNetUnfolder]: 1301/5452 cut-off events. [2022-01-19 13:15:58,311 INFO L130 PetriNetUnfolder]: For 57325/57458 co-relation queries the response was YES. [2022-01-19 13:15:58,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25869 conditions, 5452 events. 1301/5452 cut-off events. For 57325/57458 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 60833 event pairs, 474 based on Foata normal form. 2/5259 useless extension candidates. Maximal degree in co-relation 25722. Up to 1714 conditions per place. [2022-01-19 13:15:58,450 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 224 selfloop transitions, 136 changer transitions 19/572 dead transitions. [2022-01-19 13:15:58,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 572 transitions, 7030 flow [2022-01-19 13:15:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:15:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:15:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3988 transitions. [2022-01-19 13:15:58,455 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8485106382978723 [2022-01-19 13:15:58,456 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3988 transitions. [2022-01-19 13:15:58,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3988 transitions. [2022-01-19 13:15:58,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:15:58,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3988 transitions. [2022-01-19 13:15:58,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 199.4) internal successors, (3988), 20 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:58,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:58,467 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:58,468 INFO L186 Difference]: Start difference. First operand has 516 places, 512 transitions, 5427 flow. Second operand 20 states and 3988 transitions. [2022-01-19 13:15:58,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 572 transitions, 7030 flow [2022-01-19 13:15:58,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 572 transitions, 6808 flow, removed 111 selfloop flow, removed 2 redundant places. [2022-01-19 13:15:58,874 INFO L242 Difference]: Finished difference. Result has 542 places, 532 transitions, 6059 flow [2022-01-19 13:15:58,874 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=5221, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6059, PETRI_PLACES=542, PETRI_TRANSITIONS=532} [2022-01-19 13:15:58,874 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 328 predicate places. [2022-01-19 13:15:58,874 INFO L470 AbstractCegarLoop]: Abstraction has has 542 places, 532 transitions, 6059 flow [2022-01-19 13:15:58,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:58,875 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:15:58,875 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:15:58,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 13:15:58,875 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:15:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:15:58,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1703029322, now seen corresponding path program 12 times [2022-01-19 13:15:58,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:15:58,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960020130] [2022-01-19 13:15:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:15:58,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:15:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:15:58,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:15:58,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:15:58,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960020130] [2022-01-19 13:15:58,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960020130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:15:58,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:15:58,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:15:58,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312023359] [2022-01-19 13:15:58,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:15:58,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:15:58,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:15:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:15:58,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:15:58,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:15:58,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 532 transitions, 6059 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:15:58,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:15:58,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:15:58,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:00,400 INFO L129 PetriNetUnfolder]: 1306/5534 cut-off events. [2022-01-19 13:16:00,400 INFO L130 PetriNetUnfolder]: For 60417/60550 co-relation queries the response was YES. [2022-01-19 13:16:00,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26682 conditions, 5534 events. 1306/5534 cut-off events. For 60417/60550 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 61878 event pairs, 484 based on Foata normal form. 2/5344 useless extension candidates. Maximal degree in co-relation 26525. Up to 1713 conditions per place. [2022-01-19 13:16:00,475 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 227 selfloop transitions, 133 changer transitions 21/574 dead transitions. [2022-01-19 13:16:00,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 574 transitions, 7322 flow [2022-01-19 13:16:00,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:16:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:16:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3398 transitions. [2022-01-19 13:16:00,479 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8505632040050063 [2022-01-19 13:16:00,479 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3398 transitions. [2022-01-19 13:16:00,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3398 transitions. [2022-01-19 13:16:00,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:00,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3398 transitions. [2022-01-19 13:16:00,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.88235294117646) internal successors, (3398), 17 states have internal predecessors, (3398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:00,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:00,492 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:00,492 INFO L186 Difference]: Start difference. First operand has 542 places, 532 transitions, 6059 flow. Second operand 17 states and 3398 transitions. [2022-01-19 13:16:00,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 574 transitions, 7322 flow [2022-01-19 13:16:00,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 574 transitions, 6989 flow, removed 115 selfloop flow, removed 4 redundant places. [2022-01-19 13:16:00,980 INFO L242 Difference]: Finished difference. Result has 559 places, 543 transitions, 6354 flow [2022-01-19 13:16:00,981 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=5782, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6354, PETRI_PLACES=559, PETRI_TRANSITIONS=543} [2022-01-19 13:16:00,981 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 345 predicate places. [2022-01-19 13:16:00,981 INFO L470 AbstractCegarLoop]: Abstraction has has 559 places, 543 transitions, 6354 flow [2022-01-19 13:16:00,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:00,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:00,982 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:00,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 13:16:00,982 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash 734348958, now seen corresponding path program 13 times [2022-01-19 13:16:00,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:00,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449340336] [2022-01-19 13:16:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:00,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:01,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:01,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:01,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449340336] [2022-01-19 13:16:01,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449340336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:01,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:01,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:01,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134339711] [2022-01-19 13:16:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:01,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:01,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:01,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:01,078 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:01,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 543 transitions, 6354 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:01,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:01,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:01,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:02,644 INFO L129 PetriNetUnfolder]: 1302/5552 cut-off events. [2022-01-19 13:16:02,644 INFO L130 PetriNetUnfolder]: For 53900/54035 co-relation queries the response was YES. [2022-01-19 13:16:02,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26435 conditions, 5552 events. 1302/5552 cut-off events. For 53900/54035 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 62470 event pairs, 484 based on Foata normal form. 11/5371 useless extension candidates. Maximal degree in co-relation 26273. Up to 1743 conditions per place. [2022-01-19 13:16:02,712 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 246 selfloop transitions, 120 changer transitions 21/580 dead transitions. [2022-01-19 13:16:02,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 580 transitions, 7513 flow [2022-01-19 13:16:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:16:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:16:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3398 transitions. [2022-01-19 13:16:02,715 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8505632040050063 [2022-01-19 13:16:02,715 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3398 transitions. [2022-01-19 13:16:02,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3398 transitions. [2022-01-19 13:16:02,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:02,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3398 transitions. [2022-01-19 13:16:02,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.88235294117646) internal successors, (3398), 17 states have internal predecessors, (3398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:02,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:02,723 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:02,723 INFO L186 Difference]: Start difference. First operand has 559 places, 543 transitions, 6354 flow. Second operand 17 states and 3398 transitions. [2022-01-19 13:16:02,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 580 transitions, 7513 flow [2022-01-19 13:16:03,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 580 transitions, 7405 flow, removed 54 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:03,141 INFO L242 Difference]: Finished difference. Result has 578 places, 551 transitions, 6735 flow [2022-01-19 13:16:03,142 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6735, PETRI_PLACES=578, PETRI_TRANSITIONS=551} [2022-01-19 13:16:03,142 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 364 predicate places. [2022-01-19 13:16:03,142 INFO L470 AbstractCegarLoop]: Abstraction has has 578 places, 551 transitions, 6735 flow [2022-01-19 13:16:03,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:03,143 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:03,143 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:03,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 13:16:03,144 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1783606368, now seen corresponding path program 14 times [2022-01-19 13:16:03,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:03,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608058305] [2022-01-19 13:16:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:03,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:03,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:03,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608058305] [2022-01-19 13:16:03,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608058305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:03,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:03,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:03,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12906452] [2022-01-19 13:16:03,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:03,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:03,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:03,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:03,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:03,243 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:03,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 551 transitions, 6735 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:03,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:03,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:03,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:04,785 INFO L129 PetriNetUnfolder]: 1337/5656 cut-off events. [2022-01-19 13:16:04,785 INFO L130 PetriNetUnfolder]: For 60508/60643 co-relation queries the response was YES. [2022-01-19 13:16:04,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28020 conditions, 5656 events. 1337/5656 cut-off events. For 60508/60643 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 63732 event pairs, 431 based on Foata normal form. 5/5474 useless extension candidates. Maximal degree in co-relation 27852. Up to 1637 conditions per place. [2022-01-19 13:16:04,868 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 305 selfloop transitions, 103 changer transitions 23/624 dead transitions. [2022-01-19 13:16:04,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 624 transitions, 8744 flow [2022-01-19 13:16:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:16:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:16:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3992 transitions. [2022-01-19 13:16:04,872 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8493617021276596 [2022-01-19 13:16:04,872 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3992 transitions. [2022-01-19 13:16:04,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3992 transitions. [2022-01-19 13:16:04,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:04,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3992 transitions. [2022-01-19 13:16:04,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 199.6) internal successors, (3992), 20 states have internal predecessors, (3992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:04,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:04,882 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:04,882 INFO L186 Difference]: Start difference. First operand has 578 places, 551 transitions, 6735 flow. Second operand 20 states and 3992 transitions. [2022-01-19 13:16:04,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 624 transitions, 8744 flow [2022-01-19 13:16:05,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 624 transitions, 8592 flow, removed 47 selfloop flow, removed 3 redundant places. [2022-01-19 13:16:05,347 INFO L242 Difference]: Finished difference. Result has 606 places, 580 transitions, 7611 flow [2022-01-19 13:16:05,348 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=6589, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7611, PETRI_PLACES=606, PETRI_TRANSITIONS=580} [2022-01-19 13:16:05,348 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 392 predicate places. [2022-01-19 13:16:05,348 INFO L470 AbstractCegarLoop]: Abstraction has has 606 places, 580 transitions, 7611 flow [2022-01-19 13:16:05,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:05,349 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:05,349 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:05,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 13:16:05,349 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:05,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash 398288424, now seen corresponding path program 15 times [2022-01-19 13:16:05,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:05,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760644828] [2022-01-19 13:16:05,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:05,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:05,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:05,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760644828] [2022-01-19 13:16:05,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760644828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:05,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:05,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:05,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534385476] [2022-01-19 13:16:05,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:05,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:05,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:05,436 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:05,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 580 transitions, 7611 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:05,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:05,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:05,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:07,478 INFO L129 PetriNetUnfolder]: 1395/6042 cut-off events. [2022-01-19 13:16:07,478 INFO L130 PetriNetUnfolder]: For 75093/75228 co-relation queries the response was YES. [2022-01-19 13:16:07,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30627 conditions, 6042 events. 1395/6042 cut-off events. For 75093/75228 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 70287 event pairs, 440 based on Foata normal form. 5/5867 useless extension candidates. Maximal degree in co-relation 30447. Up to 1657 conditions per place. [2022-01-19 13:16:07,561 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 271 selfloop transitions, 166 changer transitions 23/653 dead transitions. [2022-01-19 13:16:07,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 653 transitions, 9597 flow [2022-01-19 13:16:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:16:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:16:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4383 transitions. [2022-01-19 13:16:07,564 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8477756286266924 [2022-01-19 13:16:07,564 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4383 transitions. [2022-01-19 13:16:07,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4383 transitions. [2022-01-19 13:16:07,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:07,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4383 transitions. [2022-01-19 13:16:07,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 199.22727272727272) internal successors, (4383), 22 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:07,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:07,573 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:07,574 INFO L186 Difference]: Start difference. First operand has 606 places, 580 transitions, 7611 flow. Second operand 22 states and 4383 transitions. [2022-01-19 13:16:07,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 653 transitions, 9597 flow [2022-01-19 13:16:08,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 653 transitions, 9173 flow, removed 212 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:08,174 INFO L242 Difference]: Finished difference. Result has 635 places, 607 transitions, 8320 flow [2022-01-19 13:16:08,174 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=7313, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8320, PETRI_PLACES=635, PETRI_TRANSITIONS=607} [2022-01-19 13:16:08,175 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 421 predicate places. [2022-01-19 13:16:08,175 INFO L470 AbstractCegarLoop]: Abstraction has has 635 places, 607 transitions, 8320 flow [2022-01-19 13:16:08,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:08,175 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:08,175 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:08,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 13:16:08,175 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:08,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1600072184, now seen corresponding path program 16 times [2022-01-19 13:16:08,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:08,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987242455] [2022-01-19 13:16:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:08,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:08,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:08,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987242455] [2022-01-19 13:16:08,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987242455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:08,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:08,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:08,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300048970] [2022-01-19 13:16:08,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:08,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:08,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:08,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:08,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:08,269 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:08,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 607 transitions, 8320 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:08,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:08,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:08,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:10,105 INFO L129 PetriNetUnfolder]: 1430/6211 cut-off events. [2022-01-19 13:16:10,105 INFO L130 PetriNetUnfolder]: For 72589/72724 co-relation queries the response was YES. [2022-01-19 13:16:10,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31775 conditions, 6211 events. 1430/6211 cut-off events. For 72589/72724 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 72840 event pairs, 440 based on Foata normal form. 5/6030 useless extension candidates. Maximal degree in co-relation 31584. Up to 1741 conditions per place. [2022-01-19 13:16:10,198 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 324 selfloop transitions, 129 changer transitions 16/662 dead transitions. [2022-01-19 13:16:10,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 662 transitions, 10162 flow [2022-01-19 13:16:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:16:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:16:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3397 transitions. [2022-01-19 13:16:10,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8503128911138924 [2022-01-19 13:16:10,200 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3397 transitions. [2022-01-19 13:16:10,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3397 transitions. [2022-01-19 13:16:10,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:10,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3397 transitions. [2022-01-19 13:16:10,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.8235294117647) internal successors, (3397), 17 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:10,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:10,207 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:10,207 INFO L186 Difference]: Start difference. First operand has 635 places, 607 transitions, 8320 flow. Second operand 17 states and 3397 transitions. [2022-01-19 13:16:10,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 662 transitions, 10162 flow [2022-01-19 13:16:10,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 662 transitions, 9933 flow, removed 111 selfloop flow, removed 4 redundant places. [2022-01-19 13:16:10,802 INFO L242 Difference]: Finished difference. Result has 654 places, 628 transitions, 9000 flow [2022-01-19 13:16:10,803 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=8131, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9000, PETRI_PLACES=654, PETRI_TRANSITIONS=628} [2022-01-19 13:16:10,803 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 440 predicate places. [2022-01-19 13:16:10,803 INFO L470 AbstractCegarLoop]: Abstraction has has 654 places, 628 transitions, 9000 flow [2022-01-19 13:16:10,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:10,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:10,803 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:10,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 13:16:10,804 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1433142104, now seen corresponding path program 17 times [2022-01-19 13:16:10,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:10,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870088115] [2022-01-19 13:16:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:10,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:10,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:10,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870088115] [2022-01-19 13:16:10,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870088115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:10,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:10,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:10,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608562607] [2022-01-19 13:16:10,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:10,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:10,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:10,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:10,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:10,895 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:10,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 628 transitions, 9000 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:10,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:10,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:10,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:12,708 INFO L129 PetriNetUnfolder]: 1464/6399 cut-off events. [2022-01-19 13:16:12,708 INFO L130 PetriNetUnfolder]: For 77724/77859 co-relation queries the response was YES. [2022-01-19 13:16:12,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33331 conditions, 6399 events. 1464/6399 cut-off events. For 77724/77859 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 75719 event pairs, 438 based on Foata normal form. 5/6214 useless extension candidates. Maximal degree in co-relation 33134. Up to 1698 conditions per place. [2022-01-19 13:16:12,802 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 341 selfloop transitions, 134 changer transitions 21/689 dead transitions. [2022-01-19 13:16:12,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 689 transitions, 10906 flow [2022-01-19 13:16:12,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:16:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:16:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4187 transitions. [2022-01-19 13:16:12,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8484295845997973 [2022-01-19 13:16:12,805 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4187 transitions. [2022-01-19 13:16:12,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4187 transitions. [2022-01-19 13:16:12,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:12,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4187 transitions. [2022-01-19 13:16:12,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 199.38095238095238) internal successors, (4187), 21 states have internal predecessors, (4187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:12,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:12,814 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:12,814 INFO L186 Difference]: Start difference. First operand has 654 places, 628 transitions, 9000 flow. Second operand 21 states and 4187 transitions. [2022-01-19 13:16:12,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 689 transitions, 10906 flow [2022-01-19 13:16:13,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 670 places, 689 transitions, 10694 flow, removed 106 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:13,699 INFO L242 Difference]: Finished difference. Result has 681 places, 650 transitions, 9719 flow [2022-01-19 13:16:13,699 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=8792, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9719, PETRI_PLACES=681, PETRI_TRANSITIONS=650} [2022-01-19 13:16:13,700 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 467 predicate places. [2022-01-19 13:16:13,700 INFO L470 AbstractCegarLoop]: Abstraction has has 681 places, 650 transitions, 9719 flow [2022-01-19 13:16:13,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:13,701 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:13,701 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:13,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 13:16:13,701 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:13,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2076436690, now seen corresponding path program 18 times [2022-01-19 13:16:13,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:13,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920953830] [2022-01-19 13:16:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:13,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:13,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:13,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920953830] [2022-01-19 13:16:13,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920953830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:13,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:13,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:13,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53220924] [2022-01-19 13:16:13,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:13,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:13,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:13,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:13,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:13,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:13,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 681 places, 650 transitions, 9719 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:13,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:13,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:13,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:15,968 INFO L129 PetriNetUnfolder]: 1463/6399 cut-off events. [2022-01-19 13:16:15,968 INFO L130 PetriNetUnfolder]: For 79219/79354 co-relation queries the response was YES. [2022-01-19 13:16:16,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33780 conditions, 6399 events. 1463/6399 cut-off events. For 79219/79354 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 75669 event pairs, 443 based on Foata normal form. 5/6223 useless extension candidates. Maximal degree in co-relation 33573. Up to 1797 conditions per place. [2022-01-19 13:16:16,058 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 298 selfloop transitions, 183 changer transitions 23/697 dead transitions. [2022-01-19 13:16:16,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 696 places, 697 transitions, 11251 flow [2022-01-19 13:16:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3593 transitions. [2022-01-19 13:16:16,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8494089834515366 [2022-01-19 13:16:16,061 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3593 transitions. [2022-01-19 13:16:16,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3593 transitions. [2022-01-19 13:16:16,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:16,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3593 transitions. [2022-01-19 13:16:16,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.61111111111111) internal successors, (3593), 18 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:16,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:16,066 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:16,066 INFO L186 Difference]: Start difference. First operand has 681 places, 650 transitions, 9719 flow. Second operand 18 states and 3593 transitions. [2022-01-19 13:16:16,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 696 places, 697 transitions, 11251 flow [2022-01-19 13:16:16,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 692 places, 697 transitions, 11030 flow, removed 101 selfloop flow, removed 4 redundant places. [2022-01-19 13:16:16,743 INFO L242 Difference]: Finished difference. Result has 699 places, 660 transitions, 10184 flow [2022-01-19 13:16:16,744 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=9501, PETRI_DIFFERENCE_MINUEND_PLACES=675, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10184, PETRI_PLACES=699, PETRI_TRANSITIONS=660} [2022-01-19 13:16:16,744 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 485 predicate places. [2022-01-19 13:16:16,744 INFO L470 AbstractCegarLoop]: Abstraction has has 699 places, 660 transitions, 10184 flow [2022-01-19 13:16:16,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:16,744 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:16,744 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:16,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 13:16:16,744 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:16,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1184340122, now seen corresponding path program 19 times [2022-01-19 13:16:16,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:16,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349208816] [2022-01-19 13:16:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:16,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:16,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:16,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349208816] [2022-01-19 13:16:16,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349208816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:16,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:16,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:16,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714053594] [2022-01-19 13:16:16,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:16,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:16,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:16,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:16,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:16,835 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:16,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 660 transitions, 10184 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:16,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:16,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:16,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:18,914 INFO L129 PetriNetUnfolder]: 1468/6515 cut-off events. [2022-01-19 13:16:18,914 INFO L130 PetriNetUnfolder]: For 78728/78863 co-relation queries the response was YES. [2022-01-19 13:16:19,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34514 conditions, 6515 events. 1468/6515 cut-off events. For 78728/78863 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 77900 event pairs, 455 based on Foata normal form. 5/6327 useless extension candidates. Maximal degree in co-relation 34303. Up to 1818 conditions per place. [2022-01-19 13:16:19,029 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 354 selfloop transitions, 135 changer transitions 21/703 dead transitions. [2022-01-19 13:16:19,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 703 transitions, 11747 flow [2022-01-19 13:16:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3596 transitions. [2022-01-19 13:16:19,032 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8501182033096927 [2022-01-19 13:16:19,032 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3596 transitions. [2022-01-19 13:16:19,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3596 transitions. [2022-01-19 13:16:19,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:19,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3596 transitions. [2022-01-19 13:16:19,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.77777777777777) internal successors, (3596), 18 states have internal predecessors, (3596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:19,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:19,038 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:19,038 INFO L186 Difference]: Start difference. First operand has 699 places, 660 transitions, 10184 flow. Second operand 18 states and 3596 transitions. [2022-01-19 13:16:19,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 703 transitions, 11747 flow [2022-01-19 13:16:19,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 708 places, 703 transitions, 11413 flow, removed 85 selfloop flow, removed 6 redundant places. [2022-01-19 13:16:19,821 INFO L242 Difference]: Finished difference. Result has 715 places, 672 transitions, 10509 flow [2022-01-19 13:16:19,821 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=9866, PETRI_DIFFERENCE_MINUEND_PLACES=691, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10509, PETRI_PLACES=715, PETRI_TRANSITIONS=672} [2022-01-19 13:16:19,821 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 501 predicate places. [2022-01-19 13:16:19,822 INFO L470 AbstractCegarLoop]: Abstraction has has 715 places, 672 transitions, 10509 flow [2022-01-19 13:16:19,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:19,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:19,822 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:19,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 13:16:19,822 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash -885340956, now seen corresponding path program 20 times [2022-01-19 13:16:19,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:19,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522242228] [2022-01-19 13:16:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:19,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:19,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522242228] [2022-01-19 13:16:19,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522242228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:19,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:19,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:19,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611865877] [2022-01-19 13:16:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:19,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:19,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:19,929 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:19,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 715 places, 672 transitions, 10509 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:19,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:19,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:19,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:21,947 INFO L129 PetriNetUnfolder]: 1468/6545 cut-off events. [2022-01-19 13:16:21,947 INFO L130 PetriNetUnfolder]: For 78867/79002 co-relation queries the response was YES. [2022-01-19 13:16:22,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34634 conditions, 6545 events. 1468/6545 cut-off events. For 78867/79002 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 78264 event pairs, 454 based on Foata normal form. 5/6360 useless extension candidates. Maximal degree in co-relation 34424. Up to 1828 conditions per place. [2022-01-19 13:16:22,048 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 36 selfloop transitions, 2 changer transitions 494/712 dead transitions. [2022-01-19 13:16:22,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 730 places, 712 transitions, 11961 flow [2022-01-19 13:16:22,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3596 transitions. [2022-01-19 13:16:22,051 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8501182033096927 [2022-01-19 13:16:22,051 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3596 transitions. [2022-01-19 13:16:22,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3596 transitions. [2022-01-19 13:16:22,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:22,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3596 transitions. [2022-01-19 13:16:22,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.77777777777777) internal successors, (3596), 18 states have internal predecessors, (3596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:22,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:22,056 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:22,056 INFO L186 Difference]: Start difference. First operand has 715 places, 672 transitions, 10509 flow. Second operand 18 states and 3596 transitions. [2022-01-19 13:16:22,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 730 places, 712 transitions, 11961 flow [2022-01-19 13:16:22,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 728 places, 712 transitions, 11827 flow, removed 67 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:22,985 INFO L242 Difference]: Finished difference. Result has 733 places, 215 transitions, 824 flow [2022-01-19 13:16:22,986 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=10377, PETRI_DIFFERENCE_MINUEND_PLACES=711, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=824, PETRI_PLACES=733, PETRI_TRANSITIONS=215} [2022-01-19 13:16:22,986 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 519 predicate places. [2022-01-19 13:16:22,987 INFO L470 AbstractCegarLoop]: Abstraction has has 733 places, 215 transitions, 824 flow [2022-01-19 13:16:22,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:22,987 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:22,987 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:22,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 13:16:22,987 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1811191079, now seen corresponding path program 1 times [2022-01-19 13:16:22,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:22,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990532760] [2022-01-19 13:16:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:22,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:23,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990532760] [2022-01-19 13:16:23,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990532760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:23,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:23,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:23,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682079193] [2022-01-19 13:16:23,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:23,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:23,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:23,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:23,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:23,078 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:23,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 733 places, 215 transitions, 824 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:23,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:23,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:23,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:23,638 INFO L129 PetriNetUnfolder]: 478/1996 cut-off events. [2022-01-19 13:16:23,638 INFO L130 PetriNetUnfolder]: For 15863/16026 co-relation queries the response was YES. [2022-01-19 13:16:23,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6895 conditions, 1996 events. 478/1996 cut-off events. For 15863/16026 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 15552 event pairs, 222 based on Foata normal form. 1/1879 useless extension candidates. Maximal degree in co-relation 6691. Up to 503 conditions per place. [2022-01-19 13:16:23,672 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 90 selfloop transitions, 30 changer transitions 28/329 dead transitions. [2022-01-19 13:16:23,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 329 transitions, 1847 flow [2022-01-19 13:16:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:16:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:16:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4790 transitions. [2022-01-19 13:16:23,675 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.849290780141844 [2022-01-19 13:16:23,675 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4790 transitions. [2022-01-19 13:16:23,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4790 transitions. [2022-01-19 13:16:23,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:23,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4790 transitions. [2022-01-19 13:16:23,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 199.58333333333334) internal successors, (4790), 24 states have internal predecessors, (4790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:23,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:23,681 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:23,681 INFO L186 Difference]: Start difference. First operand has 733 places, 215 transitions, 824 flow. Second operand 24 states and 4790 transitions. [2022-01-19 13:16:23,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 329 transitions, 1847 flow [2022-01-19 13:16:23,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 329 transitions, 1341 flow, removed 227 selfloop flow, removed 98 redundant places. [2022-01-19 13:16:23,719 INFO L242 Difference]: Finished difference. Result has 371 places, 244 transitions, 875 flow [2022-01-19 13:16:23,720 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=875, PETRI_PLACES=371, PETRI_TRANSITIONS=244} [2022-01-19 13:16:23,720 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 157 predicate places. [2022-01-19 13:16:23,720 INFO L470 AbstractCegarLoop]: Abstraction has has 371 places, 244 transitions, 875 flow [2022-01-19 13:16:23,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:23,720 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:23,721 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:23,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 13:16:23,721 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:23,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash 514473643, now seen corresponding path program 2 times [2022-01-19 13:16:23,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:23,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436748943] [2022-01-19 13:16:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:23,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:23,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:23,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436748943] [2022-01-19 13:16:23,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436748943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:23,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:23,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:23,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084024056] [2022-01-19 13:16:23,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:23,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:23,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:23,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:23,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:23,848 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:23,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 244 transitions, 875 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:23,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:23,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:23,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:24,568 INFO L129 PetriNetUnfolder]: 599/2347 cut-off events. [2022-01-19 13:16:24,568 INFO L130 PetriNetUnfolder]: For 6398/6536 co-relation queries the response was YES. [2022-01-19 13:16:24,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7560 conditions, 2347 events. 599/2347 cut-off events. For 6398/6536 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 19252 event pairs, 296 based on Foata normal form. 1/2177 useless extension candidates. Maximal degree in co-relation 7422. Up to 667 conditions per place. [2022-01-19 13:16:24,606 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 74 selfloop transitions, 45 changer transitions 19/319 dead transitions. [2022-01-19 13:16:24,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 319 transitions, 1644 flow [2022-01-19 13:16:24,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:16:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:16:24,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3987 transitions. [2022-01-19 13:16:24,609 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8482978723404255 [2022-01-19 13:16:24,609 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3987 transitions. [2022-01-19 13:16:24,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3987 transitions. [2022-01-19 13:16:24,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:24,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3987 transitions. [2022-01-19 13:16:24,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 199.35) internal successors, (3987), 20 states have internal predecessors, (3987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:24,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:24,614 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:24,614 INFO L186 Difference]: Start difference. First operand has 371 places, 244 transitions, 875 flow. Second operand 20 states and 3987 transitions. [2022-01-19 13:16:24,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 319 transitions, 1644 flow [2022-01-19 13:16:24,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 319 transitions, 1588 flow, removed 28 selfloop flow, removed 3 redundant places. [2022-01-19 13:16:24,640 INFO L242 Difference]: Finished difference. Result has 400 places, 276 transitions, 1294 flow [2022-01-19 13:16:24,640 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1294, PETRI_PLACES=400, PETRI_TRANSITIONS=276} [2022-01-19 13:16:24,641 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 186 predicate places. [2022-01-19 13:16:24,641 INFO L470 AbstractCegarLoop]: Abstraction has has 400 places, 276 transitions, 1294 flow [2022-01-19 13:16:24,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:24,641 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:24,641 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:24,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 13:16:24,641 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1317230745, now seen corresponding path program 3 times [2022-01-19 13:16:24,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:24,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344023372] [2022-01-19 13:16:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:24,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:24,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344023372] [2022-01-19 13:16:24,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344023372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:24,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:24,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:24,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656178689] [2022-01-19 13:16:24,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:24,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:24,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:24,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:24,748 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:24,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 276 transitions, 1294 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:24,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:24,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:24,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:25,446 INFO L129 PetriNetUnfolder]: 645/2490 cut-off events. [2022-01-19 13:16:25,447 INFO L130 PetriNetUnfolder]: For 11790/11838 co-relation queries the response was YES. [2022-01-19 13:16:25,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9601 conditions, 2490 events. 645/2490 cut-off events. For 11790/11838 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 21478 event pairs, 308 based on Foata normal form. 9/2308 useless extension candidates. Maximal degree in co-relation 9450. Up to 755 conditions per place. [2022-01-19 13:16:25,488 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 109 selfloop transitions, 42 changer transitions 22/354 dead transitions. [2022-01-19 13:16:25,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 354 transitions, 2363 flow [2022-01-19 13:16:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:16:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:16:25,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3990 transitions. [2022-01-19 13:16:25,491 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8489361702127659 [2022-01-19 13:16:25,491 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3990 transitions. [2022-01-19 13:16:25,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3990 transitions. [2022-01-19 13:16:25,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:25,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3990 transitions. [2022-01-19 13:16:25,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 199.5) internal successors, (3990), 20 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:25,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:25,497 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 235.0) internal successors, (4935), 21 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:25,497 INFO L186 Difference]: Start difference. First operand has 400 places, 276 transitions, 1294 flow. Second operand 20 states and 3990 transitions. [2022-01-19 13:16:25,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 354 transitions, 2363 flow [2022-01-19 13:16:25,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 354 transitions, 2085 flow, removed 139 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:25,562 INFO L242 Difference]: Finished difference. Result has 430 places, 308 transitions, 1657 flow [2022-01-19 13:16:25,562 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1657, PETRI_PLACES=430, PETRI_TRANSITIONS=308} [2022-01-19 13:16:25,563 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 216 predicate places. [2022-01-19 13:16:25,563 INFO L470 AbstractCegarLoop]: Abstraction has has 430 places, 308 transitions, 1657 flow [2022-01-19 13:16:25,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:25,563 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:25,563 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:25,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 13:16:25,564 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:25,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1416168871, now seen corresponding path program 4 times [2022-01-19 13:16:25,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:25,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746346250] [2022-01-19 13:16:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:25,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:25,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:25,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746346250] [2022-01-19 13:16:25,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746346250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:25,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:25,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:25,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086570290] [2022-01-19 13:16:25,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:25,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:25,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:25,661 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:25,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 308 transitions, 1657 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:25,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:25,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:25,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:26,325 INFO L129 PetriNetUnfolder]: 693/2824 cut-off events. [2022-01-19 13:16:26,325 INFO L130 PetriNetUnfolder]: For 13920/13978 co-relation queries the response was YES. [2022-01-19 13:16:26,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10774 conditions, 2824 events. 693/2824 cut-off events. For 13920/13978 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 25503 event pairs, 278 based on Foata normal form. 1/2618 useless extension candidates. Maximal degree in co-relation 10609. Up to 580 conditions per place. [2022-01-19 13:16:26,374 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 124 selfloop transitions, 76 changer transitions 26/407 dead transitions. [2022-01-19 13:16:26,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 407 transitions, 3034 flow [2022-01-19 13:16:26,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:16:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:16:26,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4782 transitions. [2022-01-19 13:16:26,377 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.847872340425532 [2022-01-19 13:16:26,377 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4782 transitions. [2022-01-19 13:16:26,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4782 transitions. [2022-01-19 13:16:26,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:26,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4782 transitions. [2022-01-19 13:16:26,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 199.25) internal successors, (4782), 24 states have internal predecessors, (4782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:26,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:26,385 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 235.0) internal successors, (5875), 25 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:26,385 INFO L186 Difference]: Start difference. First operand has 430 places, 308 transitions, 1657 flow. Second operand 24 states and 4782 transitions. [2022-01-19 13:16:26,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 407 transitions, 3034 flow [2022-01-19 13:16:26,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 407 transitions, 2750 flow, removed 142 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:26,465 INFO L242 Difference]: Finished difference. Result has 469 places, 336 transitions, 2166 flow [2022-01-19 13:16:26,465 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1511, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2166, PETRI_PLACES=469, PETRI_TRANSITIONS=336} [2022-01-19 13:16:26,466 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 255 predicate places. [2022-01-19 13:16:26,466 INFO L470 AbstractCegarLoop]: Abstraction has has 469 places, 336 transitions, 2166 flow [2022-01-19 13:16:26,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:26,466 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:26,466 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:26,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 13:16:26,467 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash 952413203, now seen corresponding path program 5 times [2022-01-19 13:16:26,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:26,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091629108] [2022-01-19 13:16:26,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:26,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:26,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:26,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:26,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091629108] [2022-01-19 13:16:26,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091629108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:26,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:26,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:26,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663906538] [2022-01-19 13:16:26,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:26,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:26,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:26,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:26,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:26,556 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:26,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 336 transitions, 2166 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:26,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:26,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:26,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:27,435 INFO L129 PetriNetUnfolder]: 808/3121 cut-off events. [2022-01-19 13:16:27,436 INFO L130 PetriNetUnfolder]: For 20324/20531 co-relation queries the response was YES. [2022-01-19 13:16:27,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13456 conditions, 3121 events. 808/3121 cut-off events. For 20324/20531 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 28580 event pairs, 320 based on Foata normal form. 12/2897 useless extension candidates. Maximal degree in co-relation 13272. Up to 805 conditions per place. [2022-01-19 13:16:27,490 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 134 selfloop transitions, 86 changer transitions 24/425 dead transitions. [2022-01-19 13:16:27,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 425 transitions, 3566 flow [2022-01-19 13:16:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:16:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:16:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4384 transitions. [2022-01-19 13:16:27,493 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8479690522243714 [2022-01-19 13:16:27,493 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4384 transitions. [2022-01-19 13:16:27,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4384 transitions. [2022-01-19 13:16:27,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:27,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4384 transitions. [2022-01-19 13:16:27,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 199.27272727272728) internal successors, (4384), 22 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:27,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:27,500 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:27,500 INFO L186 Difference]: Start difference. First operand has 469 places, 336 transitions, 2166 flow. Second operand 22 states and 4384 transitions. [2022-01-19 13:16:27,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 425 transitions, 3566 flow [2022-01-19 13:16:27,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 425 transitions, 3414 flow, removed 76 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:27,623 INFO L242 Difference]: Finished difference. Result has 500 places, 368 transitions, 2772 flow [2022-01-19 13:16:27,623 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2772, PETRI_PLACES=500, PETRI_TRANSITIONS=368} [2022-01-19 13:16:27,623 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 286 predicate places. [2022-01-19 13:16:27,623 INFO L470 AbstractCegarLoop]: Abstraction has has 500 places, 368 transitions, 2772 flow [2022-01-19 13:16:27,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:27,624 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:27,624 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:27,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 13:16:27,624 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:27,624 INFO L85 PathProgramCache]: Analyzing trace with hash -274068485, now seen corresponding path program 6 times [2022-01-19 13:16:27,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:27,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713272367] [2022-01-19 13:16:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:27,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:27,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:27,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713272367] [2022-01-19 13:16:27,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713272367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:27,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:27,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:27,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811664473] [2022-01-19 13:16:27,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:27,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:27,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:27,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:27,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 368 transitions, 2772 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:27,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:27,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:27,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:28,674 INFO L129 PetriNetUnfolder]: 867/3446 cut-off events. [2022-01-19 13:16:28,675 INFO L130 PetriNetUnfolder]: For 26147/26385 co-relation queries the response was YES. [2022-01-19 13:16:28,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15406 conditions, 3446 events. 867/3446 cut-off events. For 26147/26385 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 32703 event pairs, 378 based on Foata normal form. 1/3178 useless extension candidates. Maximal degree in co-relation 15209. Up to 887 conditions per place. [2022-01-19 13:16:28,733 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 143 selfloop transitions, 89 changer transitions 16/429 dead transitions. [2022-01-19 13:16:28,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 429 transitions, 3960 flow [2022-01-19 13:16:28,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:16:28,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:16:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3397 transitions. [2022-01-19 13:16:28,735 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8503128911138924 [2022-01-19 13:16:28,735 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3397 transitions. [2022-01-19 13:16:28,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3397 transitions. [2022-01-19 13:16:28,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:28,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3397 transitions. [2022-01-19 13:16:28,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.8235294117647) internal successors, (3397), 17 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:28,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:28,741 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:28,741 INFO L186 Difference]: Start difference. First operand has 500 places, 368 transitions, 2772 flow. Second operand 17 states and 3397 transitions. [2022-01-19 13:16:28,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 429 transitions, 3960 flow [2022-01-19 13:16:28,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 429 transitions, 3786 flow, removed 87 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:28,942 INFO L242 Difference]: Finished difference. Result has 521 places, 389 transitions, 3230 flow [2022-01-19 13:16:28,942 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=2624, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3230, PETRI_PLACES=521, PETRI_TRANSITIONS=389} [2022-01-19 13:16:28,942 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 307 predicate places. [2022-01-19 13:16:28,942 INFO L470 AbstractCegarLoop]: Abstraction has has 521 places, 389 transitions, 3230 flow [2022-01-19 13:16:28,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:28,943 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:28,943 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:28,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 13:16:28,943 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:28,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:28,943 INFO L85 PathProgramCache]: Analyzing trace with hash -100150973, now seen corresponding path program 7 times [2022-01-19 13:16:28,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:28,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418973748] [2022-01-19 13:16:28,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:28,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:29,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:29,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418973748] [2022-01-19 13:16:29,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418973748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:29,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:29,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:29,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451261209] [2022-01-19 13:16:29,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:29,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:29,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:29,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:29,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:29,036 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:29,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 389 transitions, 3230 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:29,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:29,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:29,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:29,948 INFO L129 PetriNetUnfolder]: 901/3582 cut-off events. [2022-01-19 13:16:29,948 INFO L130 PetriNetUnfolder]: For 29921/30179 co-relation queries the response was YES. [2022-01-19 13:16:30,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16634 conditions, 3582 events. 901/3582 cut-off events. For 29921/30179 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 34390 event pairs, 335 based on Foata normal form. 18/3326 useless extension candidates. Maximal degree in co-relation 16429. Up to 943 conditions per place. [2022-01-19 13:16:30,011 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 151 selfloop transitions, 104 changer transitions 14/450 dead transitions. [2022-01-19 13:16:30,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 450 transitions, 4433 flow [2022-01-19 13:16:30,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:16:30,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:16:30,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3197 transitions. [2022-01-19 13:16:30,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8502659574468086 [2022-01-19 13:16:30,014 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3197 transitions. [2022-01-19 13:16:30,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3197 transitions. [2022-01-19 13:16:30,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:30,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3197 transitions. [2022-01-19 13:16:30,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 199.8125) internal successors, (3197), 16 states have internal predecessors, (3197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:30,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:30,018 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:30,018 INFO L186 Difference]: Start difference. First operand has 521 places, 389 transitions, 3230 flow. Second operand 16 states and 3197 transitions. [2022-01-19 13:16:30,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 450 transitions, 4433 flow [2022-01-19 13:16:30,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 450 transitions, 4295 flow, removed 69 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:30,224 INFO L242 Difference]: Finished difference. Result has 541 places, 407 transitions, 3668 flow [2022-01-19 13:16:30,224 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=3096, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3668, PETRI_PLACES=541, PETRI_TRANSITIONS=407} [2022-01-19 13:16:30,225 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 327 predicate places. [2022-01-19 13:16:30,225 INFO L470 AbstractCegarLoop]: Abstraction has has 541 places, 407 transitions, 3668 flow [2022-01-19 13:16:30,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:30,225 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:30,225 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:30,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 13:16:30,226 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:30,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:30,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1816775041, now seen corresponding path program 8 times [2022-01-19 13:16:30,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:30,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546044591] [2022-01-19 13:16:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:30,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:30,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:30,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546044591] [2022-01-19 13:16:30,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546044591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:30,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:30,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:30,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956396855] [2022-01-19 13:16:30,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:30,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:30,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:30,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:30,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:30,318 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:30,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 407 transitions, 3668 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:30,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:30,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:30,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:31,476 INFO L129 PetriNetUnfolder]: 933/3772 cut-off events. [2022-01-19 13:16:31,476 INFO L130 PetriNetUnfolder]: For 35937/36196 co-relation queries the response was YES. [2022-01-19 13:16:31,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18144 conditions, 3772 events. 933/3772 cut-off events. For 35937/36196 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 36743 event pairs, 365 based on Foata normal form. 1/3487 useless extension candidates. Maximal degree in co-relation 17931. Up to 881 conditions per place. [2022-01-19 13:16:31,533 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 175 selfloop transitions, 98 changer transitions 23/477 dead transitions. [2022-01-19 13:16:31,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 477 transitions, 5177 flow [2022-01-19 13:16:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:16:31,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:16:31,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4189 transitions. [2022-01-19 13:16:31,536 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8488348530901723 [2022-01-19 13:16:31,536 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4189 transitions. [2022-01-19 13:16:31,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4189 transitions. [2022-01-19 13:16:31,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:31,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4189 transitions. [2022-01-19 13:16:31,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 199.47619047619048) internal successors, (4189), 21 states have internal predecessors, (4189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:31,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:31,543 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:31,543 INFO L186 Difference]: Start difference. First operand has 541 places, 407 transitions, 3668 flow. Second operand 21 states and 4189 transitions. [2022-01-19 13:16:31,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 477 transitions, 5177 flow [2022-01-19 13:16:31,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 477 transitions, 5013 flow, removed 60 selfloop flow, removed 3 redundant places. [2022-01-19 13:16:31,798 INFO L242 Difference]: Finished difference. Result has 570 places, 431 transitions, 4350 flow [2022-01-19 13:16:31,799 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=3542, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4350, PETRI_PLACES=570, PETRI_TRANSITIONS=431} [2022-01-19 13:16:31,799 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 356 predicate places. [2022-01-19 13:16:31,800 INFO L470 AbstractCegarLoop]: Abstraction has has 570 places, 431 transitions, 4350 flow [2022-01-19 13:16:31,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:31,800 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:31,800 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:31,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 13:16:31,801 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1050296499, now seen corresponding path program 9 times [2022-01-19 13:16:31,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:31,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476859778] [2022-01-19 13:16:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:31,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:31,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:31,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476859778] [2022-01-19 13:16:31,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476859778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:31,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:31,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:31,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207510240] [2022-01-19 13:16:31,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:31,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:31,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:31,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:31,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:31,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:31,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 431 transitions, 4350 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:31,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:31,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:31,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:32,884 INFO L129 PetriNetUnfolder]: 945/3798 cut-off events. [2022-01-19 13:16:32,884 INFO L130 PetriNetUnfolder]: For 39400/39482 co-relation queries the response was YES. [2022-01-19 13:16:32,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18944 conditions, 3798 events. 945/3798 cut-off events. For 39400/39482 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 37299 event pairs, 321 based on Foata normal form. 31/3541 useless extension candidates. Maximal degree in co-relation 18719. Up to 981 conditions per place. [2022-01-19 13:16:32,967 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 164 selfloop transitions, 117 changer transitions 23/485 dead transitions. [2022-01-19 13:16:32,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 485 transitions, 5548 flow [2022-01-19 13:16:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:32,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3592 transitions. [2022-01-19 13:16:32,970 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8491725768321513 [2022-01-19 13:16:32,970 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3592 transitions. [2022-01-19 13:16:32,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3592 transitions. [2022-01-19 13:16:32,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:32,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3592 transitions. [2022-01-19 13:16:32,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.55555555555554) internal successors, (3592), 18 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:32,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:32,974 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:32,974 INFO L186 Difference]: Start difference. First operand has 570 places, 431 transitions, 4350 flow. Second operand 18 states and 3592 transitions. [2022-01-19 13:16:32,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 485 transitions, 5548 flow [2022-01-19 13:16:33,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 485 transitions, 5338 flow, removed 105 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:33,312 INFO L242 Difference]: Finished difference. Result has 591 places, 441 transitions, 4661 flow [2022-01-19 13:16:33,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=4154, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4661, PETRI_PLACES=591, PETRI_TRANSITIONS=441} [2022-01-19 13:16:33,312 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 377 predicate places. [2022-01-19 13:16:33,313 INFO L470 AbstractCegarLoop]: Abstraction has has 591 places, 441 transitions, 4661 flow [2022-01-19 13:16:33,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:33,313 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:33,313 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:33,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 13:16:33,313 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:33,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash -881983625, now seen corresponding path program 10 times [2022-01-19 13:16:33,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:33,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288830225] [2022-01-19 13:16:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:33,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:33,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:33,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:33,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288830225] [2022-01-19 13:16:33,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288830225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:33,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:33,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:33,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091398845] [2022-01-19 13:16:33,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:33,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:33,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:33,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:33,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:33,412 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:33,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 441 transitions, 4661 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:33,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:33,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:33,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:34,643 INFO L129 PetriNetUnfolder]: 971/4050 cut-off events. [2022-01-19 13:16:34,643 INFO L130 PetriNetUnfolder]: For 42897/42971 co-relation queries the response was YES. [2022-01-19 13:16:34,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20138 conditions, 4050 events. 971/4050 cut-off events. For 42897/42971 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 40768 event pairs, 350 based on Foata normal form. 14/3760 useless extension candidates. Maximal degree in co-relation 19906. Up to 1031 conditions per place. [2022-01-19 13:16:34,727 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 192 selfloop transitions, 107 changer transitions 15/495 dead transitions. [2022-01-19 13:16:34,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 495 transitions, 6016 flow [2022-01-19 13:16:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:16:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:16:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3397 transitions. [2022-01-19 13:16:34,730 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8503128911138924 [2022-01-19 13:16:34,730 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3397 transitions. [2022-01-19 13:16:34,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3397 transitions. [2022-01-19 13:16:34,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:34,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3397 transitions. [2022-01-19 13:16:34,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.8235294117647) internal successors, (3397), 17 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:34,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:34,735 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:34,735 INFO L186 Difference]: Start difference. First operand has 591 places, 441 transitions, 4661 flow. Second operand 17 states and 3397 transitions. [2022-01-19 13:16:34,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 495 transitions, 6016 flow [2022-01-19 13:16:35,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 601 places, 495 transitions, 5828 flow, removed 50 selfloop flow, removed 4 redundant places. [2022-01-19 13:16:35,077 INFO L242 Difference]: Finished difference. Result has 610 places, 462 transitions, 5225 flow [2022-01-19 13:16:35,077 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=4489, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5225, PETRI_PLACES=610, PETRI_TRANSITIONS=462} [2022-01-19 13:16:35,077 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 396 predicate places. [2022-01-19 13:16:35,077 INFO L470 AbstractCegarLoop]: Abstraction has has 610 places, 462 transitions, 5225 flow [2022-01-19 13:16:35,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:35,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:35,078 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:35,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-19 13:16:35,078 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:35,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash 511984547, now seen corresponding path program 11 times [2022-01-19 13:16:35,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:35,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274735721] [2022-01-19 13:16:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:35,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:35,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:35,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274735721] [2022-01-19 13:16:35,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274735721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:35,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:35,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:35,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125184918] [2022-01-19 13:16:35,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:35,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:35,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:35,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:35,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:35,168 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:35,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 462 transitions, 5225 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:35,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:35,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:35,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:36,579 INFO L129 PetriNetUnfolder]: 968/4066 cut-off events. [2022-01-19 13:16:36,579 INFO L130 PetriNetUnfolder]: For 44127/44207 co-relation queries the response was YES. [2022-01-19 13:16:36,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20728 conditions, 4066 events. 968/4066 cut-off events. For 44127/44207 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 41172 event pairs, 339 based on Foata normal form. 14/3769 useless extension candidates. Maximal degree in co-relation 20488. Up to 1053 conditions per place. [2022-01-19 13:16:36,671 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 177 selfloop transitions, 127 changer transitions 20/505 dead transitions. [2022-01-19 13:16:36,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 505 transitions, 6336 flow [2022-01-19 13:16:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:36,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:36,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3592 transitions. [2022-01-19 13:16:36,673 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8491725768321513 [2022-01-19 13:16:36,673 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3592 transitions. [2022-01-19 13:16:36,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3592 transitions. [2022-01-19 13:16:36,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:36,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3592 transitions. [2022-01-19 13:16:36,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.55555555555554) internal successors, (3592), 18 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:36,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:36,678 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:36,678 INFO L186 Difference]: Start difference. First operand has 610 places, 462 transitions, 5225 flow. Second operand 18 states and 3592 transitions. [2022-01-19 13:16:36,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 505 transitions, 6336 flow [2022-01-19 13:16:37,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 505 transitions, 6134 flow, removed 76 selfloop flow, removed 3 redundant places. [2022-01-19 13:16:37,066 INFO L242 Difference]: Finished difference. Result has 629 places, 474 transitions, 5599 flow [2022-01-19 13:16:37,066 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=5029, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5599, PETRI_PLACES=629, PETRI_TRANSITIONS=474} [2022-01-19 13:16:37,067 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 415 predicate places. [2022-01-19 13:16:37,067 INFO L470 AbstractCegarLoop]: Abstraction has has 629 places, 474 transitions, 5599 flow [2022-01-19 13:16:37,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:37,067 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:37,068 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:37,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 13:16:37,068 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1353104711, now seen corresponding path program 12 times [2022-01-19 13:16:37,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:37,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765617409] [2022-01-19 13:16:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:37,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:37,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:37,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765617409] [2022-01-19 13:16:37,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765617409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:37,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:37,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:37,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553550097] [2022-01-19 13:16:37,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:37,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:37,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:37,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:37,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:37,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:37,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 474 transitions, 5599 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:37,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:37,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:37,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:38,667 INFO L129 PetriNetUnfolder]: 968/4185 cut-off events. [2022-01-19 13:16:38,668 INFO L130 PetriNetUnfolder]: For 46486/46566 co-relation queries the response was YES. [2022-01-19 13:16:38,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21052 conditions, 4185 events. 968/4185 cut-off events. For 46486/46566 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 43120 event pairs, 333 based on Foata normal form. 14/3890 useless extension candidates. Maximal degree in co-relation 20807. Up to 1043 conditions per place. [2022-01-19 13:16:38,765 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 195 selfloop transitions, 116 changer transitions 24/516 dead transitions. [2022-01-19 13:16:38,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 516 transitions, 6697 flow [2022-01-19 13:16:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:38,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3596 transitions. [2022-01-19 13:16:38,767 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8501182033096927 [2022-01-19 13:16:38,768 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3596 transitions. [2022-01-19 13:16:38,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3596 transitions. [2022-01-19 13:16:38,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:38,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3596 transitions. [2022-01-19 13:16:38,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.77777777777777) internal successors, (3596), 18 states have internal predecessors, (3596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:38,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:38,772 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:38,772 INFO L186 Difference]: Start difference. First operand has 629 places, 474 transitions, 5599 flow. Second operand 18 states and 3596 transitions. [2022-01-19 13:16:38,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 516 transitions, 6697 flow [2022-01-19 13:16:39,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 516 transitions, 6536 flow, removed 54 selfloop flow, removed 4 redundant places. [2022-01-19 13:16:39,184 INFO L242 Difference]: Finished difference. Result has 647 places, 483 transitions, 5953 flow [2022-01-19 13:16:39,184 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=5446, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5953, PETRI_PLACES=647, PETRI_TRANSITIONS=483} [2022-01-19 13:16:39,185 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 433 predicate places. [2022-01-19 13:16:39,185 INFO L470 AbstractCegarLoop]: Abstraction has has 647 places, 483 transitions, 5953 flow [2022-01-19 13:16:39,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:39,185 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:39,185 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:39,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 13:16:39,186 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:39,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash 813993955, now seen corresponding path program 13 times [2022-01-19 13:16:39,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:39,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720222195] [2022-01-19 13:16:39,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:39,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:39,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:39,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720222195] [2022-01-19 13:16:39,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720222195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:39,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:39,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:39,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110321192] [2022-01-19 13:16:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:39,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:39,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:39,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:39,292 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:39,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 483 transitions, 5953 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:39,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:39,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:39,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:40,794 INFO L129 PetriNetUnfolder]: 1069/4623 cut-off events. [2022-01-19 13:16:40,794 INFO L130 PetriNetUnfolder]: For 58439/58523 co-relation queries the response was YES. [2022-01-19 13:16:40,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23515 conditions, 4623 events. 1069/4623 cut-off events. For 58439/58523 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 48745 event pairs, 353 based on Foata normal form. 1/4302 useless extension candidates. Maximal degree in co-relation 23266. Up to 1077 conditions per place. [2022-01-19 13:16:40,892 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 210 selfloop transitions, 144 changer transitions 23/558 dead transitions. [2022-01-19 13:16:40,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 558 transitions, 7680 flow [2022-01-19 13:16:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:16:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:16:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4380 transitions. [2022-01-19 13:16:40,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8471953578336557 [2022-01-19 13:16:40,895 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4380 transitions. [2022-01-19 13:16:40,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4380 transitions. [2022-01-19 13:16:40,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:40,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4380 transitions. [2022-01-19 13:16:40,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 199.0909090909091) internal successors, (4380), 22 states have internal predecessors, (4380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:40,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:40,907 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:40,907 INFO L186 Difference]: Start difference. First operand has 647 places, 483 transitions, 5953 flow. Second operand 22 states and 4380 transitions. [2022-01-19 13:16:40,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 666 places, 558 transitions, 7680 flow [2022-01-19 13:16:41,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 663 places, 558 transitions, 7551 flow, removed 63 selfloop flow, removed 3 redundant places. [2022-01-19 13:16:41,337 INFO L242 Difference]: Finished difference. Result has 677 places, 515 transitions, 6892 flow [2022-01-19 13:16:41,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=5826, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6892, PETRI_PLACES=677, PETRI_TRANSITIONS=515} [2022-01-19 13:16:41,337 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 463 predicate places. [2022-01-19 13:16:41,337 INFO L470 AbstractCegarLoop]: Abstraction has has 677 places, 515 transitions, 6892 flow [2022-01-19 13:16:41,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:41,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:41,338 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:41,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 13:16:41,338 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:41,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash -725621337, now seen corresponding path program 14 times [2022-01-19 13:16:41,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:41,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823079655] [2022-01-19 13:16:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:41,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:41,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:41,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823079655] [2022-01-19 13:16:41,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823079655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:41,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:41,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:41,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706309862] [2022-01-19 13:16:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:41,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:41,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:41,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:41,440 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:41,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 677 places, 515 transitions, 6892 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:41,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:41,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:41,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:43,081 INFO L129 PetriNetUnfolder]: 1100/4726 cut-off events. [2022-01-19 13:16:43,081 INFO L130 PetriNetUnfolder]: For 66967/67043 co-relation queries the response was YES. [2022-01-19 13:16:43,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25378 conditions, 4726 events. 1100/4726 cut-off events. For 66967/67043 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 50187 event pairs, 413 based on Foata normal form. 1/4382 useless extension candidates. Maximal degree in co-relation 25117. Up to 1097 conditions per place. [2022-01-19 13:16:43,197 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 269 selfloop transitions, 106 changer transitions 21/577 dead transitions. [2022-01-19 13:16:43,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 577 transitions, 8570 flow [2022-01-19 13:16:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:16:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:16:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4185 transitions. [2022-01-19 13:16:43,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8480243161094225 [2022-01-19 13:16:43,200 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4185 transitions. [2022-01-19 13:16:43,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4185 transitions. [2022-01-19 13:16:43,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:43,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4185 transitions. [2022-01-19 13:16:43,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 199.28571428571428) internal successors, (4185), 21 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:43,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:43,205 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 235.0) internal successors, (5170), 22 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:43,205 INFO L186 Difference]: Start difference. First operand has 677 places, 515 transitions, 6892 flow. Second operand 21 states and 4185 transitions. [2022-01-19 13:16:43,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 695 places, 577 transitions, 8570 flow [2022-01-19 13:16:43,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 693 places, 577 transitions, 8370 flow, removed 100 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:43,720 INFO L242 Difference]: Finished difference. Result has 707 places, 539 transitions, 7573 flow [2022-01-19 13:16:43,720 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=6706, PETRI_DIFFERENCE_MINUEND_PLACES=673, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=7573, PETRI_PLACES=707, PETRI_TRANSITIONS=539} [2022-01-19 13:16:43,721 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 493 predicate places. [2022-01-19 13:16:43,721 INFO L470 AbstractCegarLoop]: Abstraction has has 707 places, 539 transitions, 7573 flow [2022-01-19 13:16:43,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:43,721 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:43,721 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:43,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 13:16:43,721 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:43,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:43,722 INFO L85 PathProgramCache]: Analyzing trace with hash 259375591, now seen corresponding path program 15 times [2022-01-19 13:16:43,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:43,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558759416] [2022-01-19 13:16:43,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:43,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:43,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:43,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558759416] [2022-01-19 13:16:43,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558759416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:43,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:43,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:43,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287767254] [2022-01-19 13:16:43,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:43,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:43,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:43,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:43,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:43,808 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:43,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 539 transitions, 7573 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:43,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:43,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:43,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:45,443 INFO L129 PetriNetUnfolder]: 1123/4903 cut-off events. [2022-01-19 13:16:45,443 INFO L130 PetriNetUnfolder]: For 72565/72641 co-relation queries the response was YES. [2022-01-19 13:16:45,558 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26617 conditions, 4903 events. 1123/4903 cut-off events. For 72565/72641 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 52780 event pairs, 351 based on Foata normal form. 1/4555 useless extension candidates. Maximal degree in co-relation 26343. Up to 1173 conditions per place. [2022-01-19 13:16:45,571 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 231 selfloop transitions, 162 changer transitions 18/592 dead transitions. [2022-01-19 13:16:45,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 722 places, 592 transitions, 9112 flow [2022-01-19 13:16:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3590 transitions. [2022-01-19 13:16:45,574 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8486997635933806 [2022-01-19 13:16:45,574 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3590 transitions. [2022-01-19 13:16:45,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3590 transitions. [2022-01-19 13:16:45,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:45,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3590 transitions. [2022-01-19 13:16:45,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.44444444444446) internal successors, (3590), 18 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:45,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:45,579 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:45,579 INFO L186 Difference]: Start difference. First operand has 707 places, 539 transitions, 7573 flow. Second operand 18 states and 3590 transitions. [2022-01-19 13:16:45,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 722 places, 592 transitions, 9112 flow [2022-01-19 13:16:46,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 720 places, 592 transitions, 8912 flow, removed 100 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:46,164 INFO L242 Difference]: Finished difference. Result has 728 places, 560 transitions, 8248 flow [2022-01-19 13:16:46,164 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=7375, PETRI_DIFFERENCE_MINUEND_PLACES=703, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8248, PETRI_PLACES=728, PETRI_TRANSITIONS=560} [2022-01-19 13:16:46,164 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 514 predicate places. [2022-01-19 13:16:46,165 INFO L470 AbstractCegarLoop]: Abstraction has has 728 places, 560 transitions, 8248 flow [2022-01-19 13:16:46,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:46,165 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:46,165 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:46,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 13:16:46,165 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:46,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1571864207, now seen corresponding path program 16 times [2022-01-19 13:16:46,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:46,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120695012] [2022-01-19 13:16:46,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:46,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:46,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:46,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120695012] [2022-01-19 13:16:46,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120695012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:46,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:46,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:46,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26787933] [2022-01-19 13:16:46,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:46,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:46,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:46,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:46,269 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:46,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 560 transitions, 8248 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:46,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:46,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:46,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:48,130 INFO L129 PetriNetUnfolder]: 1184/5128 cut-off events. [2022-01-19 13:16:48,131 INFO L130 PetriNetUnfolder]: For 78994/79070 co-relation queries the response was YES. [2022-01-19 13:16:48,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28763 conditions, 5128 events. 1184/5128 cut-off events. For 78994/79070 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 55654 event pairs, 409 based on Foata normal form. 1/4754 useless extension candidates. Maximal degree in co-relation 28482. Up to 1220 conditions per place. [2022-01-19 13:16:48,278 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 279 selfloop transitions, 135 changer transitions 16/611 dead transitions. [2022-01-19 13:16:48,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 742 places, 611 transitions, 9864 flow [2022-01-19 13:16:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:16:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:16:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3395 transitions. [2022-01-19 13:16:48,281 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8498122653316645 [2022-01-19 13:16:48,281 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3395 transitions. [2022-01-19 13:16:48,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3395 transitions. [2022-01-19 13:16:48,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:48,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3395 transitions. [2022-01-19 13:16:48,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.7058823529412) internal successors, (3395), 17 states have internal predecessors, (3395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:48,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:48,285 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:48,285 INFO L186 Difference]: Start difference. First operand has 728 places, 560 transitions, 8248 flow. Second operand 17 states and 3395 transitions. [2022-01-19 13:16:48,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 742 places, 611 transitions, 9864 flow [2022-01-19 13:16:49,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 740 places, 611 transitions, 9616 flow, removed 124 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:49,368 INFO L242 Difference]: Finished difference. Result has 749 places, 581 transitions, 8881 flow [2022-01-19 13:16:49,369 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=8048, PETRI_DIFFERENCE_MINUEND_PLACES=724, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8881, PETRI_PLACES=749, PETRI_TRANSITIONS=581} [2022-01-19 13:16:49,371 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 535 predicate places. [2022-01-19 13:16:49,371 INFO L470 AbstractCegarLoop]: Abstraction has has 749 places, 581 transitions, 8881 flow [2022-01-19 13:16:49,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:49,372 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:49,372 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:49,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 13:16:49,372 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash -653578939, now seen corresponding path program 17 times [2022-01-19 13:16:49,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:49,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390981838] [2022-01-19 13:16:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:49,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:49,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:49,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:49,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390981838] [2022-01-19 13:16:49,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390981838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:49,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:49,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:49,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4050287] [2022-01-19 13:16:49,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:49,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:49,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:49,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:49,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:49,470 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:49,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 749 places, 581 transitions, 8881 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:49,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:49,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:49,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:51,409 INFO L129 PetriNetUnfolder]: 1204/5300 cut-off events. [2022-01-19 13:16:51,410 INFO L130 PetriNetUnfolder]: For 84927/85003 co-relation queries the response was YES. [2022-01-19 13:16:51,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30082 conditions, 5300 events. 1204/5300 cut-off events. For 84927/85003 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 58614 event pairs, 365 based on Foata normal form. 1/4918 useless extension candidates. Maximal degree in co-relation 29793. Up to 1256 conditions per place. [2022-01-19 13:16:51,776 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 304 selfloop transitions, 127 changer transitions 17/629 dead transitions. [2022-01-19 13:16:51,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 629 transitions, 10493 flow [2022-01-19 13:16:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3594 transitions. [2022-01-19 13:16:51,779 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.849645390070922 [2022-01-19 13:16:51,779 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3594 transitions. [2022-01-19 13:16:51,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3594 transitions. [2022-01-19 13:16:51,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:51,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3594 transitions. [2022-01-19 13:16:51,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.66666666666666) internal successors, (3594), 18 states have internal predecessors, (3594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:51,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:51,783 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:51,783 INFO L186 Difference]: Start difference. First operand has 749 places, 581 transitions, 8881 flow. Second operand 18 states and 3594 transitions. [2022-01-19 13:16:51,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 764 places, 629 transitions, 10493 flow [2022-01-19 13:16:52,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 762 places, 629 transitions, 10337 flow, removed 78 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:52,410 INFO L242 Difference]: Finished difference. Result has 770 places, 600 transitions, 9545 flow [2022-01-19 13:16:52,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=8729, PETRI_DIFFERENCE_MINUEND_PLACES=745, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9545, PETRI_PLACES=770, PETRI_TRANSITIONS=600} [2022-01-19 13:16:52,410 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 556 predicate places. [2022-01-19 13:16:52,410 INFO L470 AbstractCegarLoop]: Abstraction has has 770 places, 600 transitions, 9545 flow [2022-01-19 13:16:52,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:52,410 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:52,411 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:52,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-19 13:16:52,411 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:52,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:52,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1442622767, now seen corresponding path program 18 times [2022-01-19 13:16:52,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:52,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574973183] [2022-01-19 13:16:52,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:52,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:52,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:52,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574973183] [2022-01-19 13:16:52,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574973183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:52,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:52,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:52,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040317130] [2022-01-19 13:16:52,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:52,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:52,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:52,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:52,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:52,492 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:52,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 600 transitions, 9545 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:52,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:52,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:52,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:54,555 INFO L129 PetriNetUnfolder]: 1204/5340 cut-off events. [2022-01-19 13:16:54,555 INFO L130 PetriNetUnfolder]: For 89886/89962 co-relation queries the response was YES. [2022-01-19 13:16:54,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30749 conditions, 5340 events. 1204/5340 cut-off events. For 89886/89962 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 59314 event pairs, 345 based on Foata normal form. 1/4957 useless extension candidates. Maximal degree in co-relation 30453. Up to 1277 conditions per place. [2022-01-19 13:16:54,664 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 255 selfloop transitions, 179 changer transitions 22/637 dead transitions. [2022-01-19 13:16:54,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 637 transitions, 10835 flow [2022-01-19 13:16:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:16:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:16:54,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3198 transitions. [2022-01-19 13:16:54,666 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.850531914893617 [2022-01-19 13:16:54,666 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3198 transitions. [2022-01-19 13:16:54,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3198 transitions. [2022-01-19 13:16:54,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:54,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3198 transitions. [2022-01-19 13:16:54,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 199.875) internal successors, (3198), 16 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:54,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:54,670 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 235.0) internal successors, (3995), 17 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:54,671 INFO L186 Difference]: Start difference. First operand has 770 places, 600 transitions, 9545 flow. Second operand 16 states and 3198 transitions. [2022-01-19 13:16:54,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 637 transitions, 10835 flow [2022-01-19 13:16:55,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 637 transitions, 10643 flow, removed 96 selfloop flow, removed 2 redundant places. [2022-01-19 13:16:55,337 INFO L242 Difference]: Finished difference. Result has 788 places, 608 transitions, 9948 flow [2022-01-19 13:16:55,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=9355, PETRI_DIFFERENCE_MINUEND_PLACES=766, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9948, PETRI_PLACES=788, PETRI_TRANSITIONS=608} [2022-01-19 13:16:55,337 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 574 predicate places. [2022-01-19 13:16:55,337 INFO L470 AbstractCegarLoop]: Abstraction has has 788 places, 608 transitions, 9948 flow [2022-01-19 13:16:55,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:55,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:55,338 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:55,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-19 13:16:55,338 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:55,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:55,338 INFO L85 PathProgramCache]: Analyzing trace with hash -371373891, now seen corresponding path program 19 times [2022-01-19 13:16:55,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:55,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975897404] [2022-01-19 13:16:55,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:55,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:55,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:55,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:55,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975897404] [2022-01-19 13:16:55,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975897404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:55,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:55,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:55,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030518096] [2022-01-19 13:16:55,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:55,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:55,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:55,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:55,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:55,423 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:55,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 608 transitions, 9948 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:55,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:55,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:55,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:16:57,607 INFO L129 PetriNetUnfolder]: 1235/5609 cut-off events. [2022-01-19 13:16:57,608 INFO L130 PetriNetUnfolder]: For 100181/100257 co-relation queries the response was YES. [2022-01-19 13:16:57,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32671 conditions, 5609 events. 1235/5609 cut-off events. For 100181/100257 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 63527 event pairs, 356 based on Foata normal form. 1/5217 useless extension candidates. Maximal degree in co-relation 32369. Up to 1308 conditions per place. [2022-01-19 13:16:57,727 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 293 selfloop transitions, 153 changer transitions 23/650 dead transitions. [2022-01-19 13:16:57,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 803 places, 650 transitions, 11421 flow [2022-01-19 13:16:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:16:57,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:16:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3594 transitions. [2022-01-19 13:16:57,729 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.849645390070922 [2022-01-19 13:16:57,729 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3594 transitions. [2022-01-19 13:16:57,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3594 transitions. [2022-01-19 13:16:57,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:16:57,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3594 transitions. [2022-01-19 13:16:57,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 199.66666666666666) internal successors, (3594), 18 states have internal predecessors, (3594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:57,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:57,733 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 235.0) internal successors, (4465), 19 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:57,733 INFO L186 Difference]: Start difference. First operand has 788 places, 608 transitions, 9948 flow. Second operand 18 states and 3594 transitions. [2022-01-19 13:16:57,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 803 places, 650 transitions, 11421 flow [2022-01-19 13:16:58,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 798 places, 650 transitions, 11104 flow, removed 42 selfloop flow, removed 5 redundant places. [2022-01-19 13:16:58,468 INFO L242 Difference]: Finished difference. Result has 805 places, 622 transitions, 10380 flow [2022-01-19 13:16:58,469 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=9653, PETRI_DIFFERENCE_MINUEND_PLACES=781, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10380, PETRI_PLACES=805, PETRI_TRANSITIONS=622} [2022-01-19 13:16:58,469 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 591 predicate places. [2022-01-19 13:16:58,469 INFO L470 AbstractCegarLoop]: Abstraction has has 805 places, 622 transitions, 10380 flow [2022-01-19 13:16:58,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:58,469 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:16:58,469 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:16:58,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-19 13:16:58,470 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:16:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:16:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 634310457, now seen corresponding path program 20 times [2022-01-19 13:16:58,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:16:58,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759751572] [2022-01-19 13:16:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:16:58,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:16:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:16:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:16:58,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:16:58,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759751572] [2022-01-19 13:16:58,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759751572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:16:58,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:16:58,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:16:58,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771796569] [2022-01-19 13:16:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:16:58,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:16:58,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:16:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:16:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:16:58,554 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 235 [2022-01-19 13:16:58,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 805 places, 622 transitions, 10380 flow. Second operand has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:16:58,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:16:58,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 235 [2022-01-19 13:16:58,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:17:00,658 INFO L129 PetriNetUnfolder]: 1230/5597 cut-off events. [2022-01-19 13:17:00,658 INFO L130 PetriNetUnfolder]: For 101559/101635 co-relation queries the response was YES. [2022-01-19 13:17:00,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32483 conditions, 5597 events. 1230/5597 cut-off events. For 101559/101635 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 62906 event pairs, 396 based on Foata normal form. 1/5212 useless extension candidates. Maximal degree in co-relation 32176. Up to 1299 conditions per place. [2022-01-19 13:17:00,786 INFO L132 encePairwiseOnDemand]: 222/235 looper letters, 312 selfloop transitions, 138 changer transitions 26/657 dead transitions. [2022-01-19 13:17:00,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 819 places, 657 transitions, 11682 flow [2022-01-19 13:17:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:17:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:17:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3399 transitions. [2022-01-19 13:17:01,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8508135168961202 [2022-01-19 13:17:01,008 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3399 transitions. [2022-01-19 13:17:01,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3399 transitions. [2022-01-19 13:17:01,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:17:01,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3399 transitions. [2022-01-19 13:17:01,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 199.94117647058823) internal successors, (3399), 17 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:01,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:01,013 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 235.0) internal successors, (4230), 18 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:01,013 INFO L186 Difference]: Start difference. First operand has 805 places, 622 transitions, 10380 flow. Second operand 17 states and 3399 transitions. [2022-01-19 13:17:01,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 819 places, 657 transitions, 11682 flow [2022-01-19 13:17:01,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 815 places, 657 transitions, 11492 flow, removed 57 selfloop flow, removed 4 redundant places. [2022-01-19 13:17:01,784 INFO L242 Difference]: Finished difference. Result has 822 places, 630 transitions, 10729 flow [2022-01-19 13:17:01,784 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=10196, PETRI_DIFFERENCE_MINUEND_PLACES=799, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10729, PETRI_PLACES=822, PETRI_TRANSITIONS=630} [2022-01-19 13:17:01,785 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 608 predicate places. [2022-01-19 13:17:01,785 INFO L470 AbstractCegarLoop]: Abstraction has has 822 places, 630 transitions, 10729 flow [2022-01-19 13:17:01,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 196.6) internal successors, (1966), 10 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:01,785 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:17:01,785 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:17:01,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-19 13:17:01,786 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:17:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:17:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -811522789, now seen corresponding path program 1 times [2022-01-19 13:17:01,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:17:01,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561594751] [2022-01-19 13:17:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:17:01,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:17:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:17:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:17:02,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:17:02,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561594751] [2022-01-19 13:17:02,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561594751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:17:02,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:17:02,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-19 13:17:02,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321091933] [2022-01-19 13:17:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:17:02,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-19 13:17:02,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:17:02,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-19 13:17:02,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=867, Unknown=0, NotChecked=0, Total=930 [2022-01-19 13:17:02,547 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 235 [2022-01-19 13:17:02,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 630 transitions, 10729 flow. Second operand has 31 states, 31 states have (on average 149.29032258064515) internal successors, (4628), 31 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:02,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:17:02,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 235 [2022-01-19 13:17:02,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:17:38,245 INFO L129 PetriNetUnfolder]: 29155/64540 cut-off events. [2022-01-19 13:17:38,246 INFO L130 PetriNetUnfolder]: For 739211/739286 co-relation queries the response was YES. [2022-01-19 13:17:43,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263235 conditions, 64540 events. 29155/64540 cut-off events. For 739211/739286 co-relation queries the response was YES. Maximal size of possible extension queue 1266. Compared 700488 event pairs, 10204 based on Foata normal form. 1/63087 useless extension candidates. Maximal degree in co-relation 262924. Up to 25596 conditions per place. [2022-01-19 13:17:43,949 INFO L132 encePairwiseOnDemand]: 196/235 looper letters, 1073 selfloop transitions, 153 changer transitions 190/1552 dead transitions. [2022-01-19 13:17:43,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 1552 transitions, 17989 flow [2022-01-19 13:17:43,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-01-19 13:17:43,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2022-01-19 13:17:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 18629 transitions. [2022-01-19 13:17:43,957 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6606028368794327 [2022-01-19 13:17:43,957 INFO L72 ComplementDD]: Start complementDD. Operand 120 states and 18629 transitions. [2022-01-19 13:17:43,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 18629 transitions. [2022-01-19 13:17:43,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:17:43,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 120 states and 18629 transitions. [2022-01-19 13:17:43,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 121 states, 120 states have (on average 155.24166666666667) internal successors, (18629), 120 states have internal predecessors, (18629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:43,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 121 states, 121 states have (on average 235.0) internal successors, (28435), 121 states have internal predecessors, (28435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:43,988 INFO L81 ComplementDD]: Finished complementDD. Result has 121 states, 121 states have (on average 235.0) internal successors, (28435), 121 states have internal predecessors, (28435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:43,988 INFO L186 Difference]: Start difference. First operand has 822 places, 630 transitions, 10729 flow. Second operand 120 states and 18629 transitions. [2022-01-19 13:17:43,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 1552 transitions, 17989 flow [2022-01-19 13:17:49,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 1552 transitions, 17810 flow, removed 53 selfloop flow, removed 3 redundant places. [2022-01-19 13:17:49,610 INFO L242 Difference]: Finished difference. Result has 1043 places, 788 transitions, 12128 flow [2022-01-19 13:17:49,611 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=10552, PETRI_DIFFERENCE_MINUEND_PLACES=817, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=120, PETRI_FLOW=12128, PETRI_PLACES=1043, PETRI_TRANSITIONS=788} [2022-01-19 13:17:49,611 INFO L334 CegarLoopForPetriNet]: 214 programPoint places, 829 predicate places. [2022-01-19 13:17:49,611 INFO L470 AbstractCegarLoop]: Abstraction has has 1043 places, 788 transitions, 12128 flow [2022-01-19 13:17:49,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 149.29032258064515) internal successors, (4628), 31 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:49,612 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:17:49,612 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:17:49,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-19 13:17:49,612 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:17:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:17:49,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1471915715, now seen corresponding path program 2 times [2022-01-19 13:17:49,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:17:49,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591507194] [2022-01-19 13:17:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:17:49,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:17:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:17:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:17:50,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:17:50,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591507194] [2022-01-19 13:17:50,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591507194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:17:50,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:17:50,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-19 13:17:50,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758994506] [2022-01-19 13:17:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:17:50,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-19 13:17:50,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:17:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-19 13:17:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=866, Unknown=0, NotChecked=0, Total=930 [2022-01-19 13:17:50,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 235 [2022-01-19 13:17:50,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 788 transitions, 12128 flow. Second operand has 31 states, 31 states have (on average 149.29032258064515) internal successors, (4628), 31 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:17:50,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:17:50,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 235 [2022-01-19 13:17:50,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand