/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-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 12:55:03,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 12:55:03,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 12:55:03,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 12:55:03,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 12:55:03,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 12:55:03,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 12:55:03,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 12:55:03,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 12:55:03,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 12:55:03,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 12:55:03,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 12:55:03,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 12:55:03,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 12:55:03,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 12:55:03,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 12:55:03,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 12:55:03,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 12:55:03,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 12:55:03,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 12:55:03,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 12:55:03,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 12:55:03,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 12:55:03,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 12:55:03,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 12:55:03,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 12:55:03,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 12:55:03,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 12:55:03,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 12:55:03,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 12:55:03,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 12:55:03,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 12:55:03,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 12:55:03,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 12:55:03,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 12:55:03,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 12:55:03,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 12:55:03,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 12:55:03,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 12:55:03,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 12:55:03,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 12:55:03,289 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 12:55:03,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 12:55:03,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 12:55:03,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 12:55:03,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 12:55:03,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 12:55:03,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 12:55:03,311 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 12:55:03,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 12:55:03,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 12:55:03,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 12:55:03,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:55:03,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 12:55:03,313 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 12:55:03,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 12:55:03,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 12:55:03,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 12:55:03,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 12:55:03,470 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 12:55:03,470 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 12:55:03,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-01-19 12:55:03,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b373fdd8/614f6072163443c9b365aed9833c1bfc/FLAGe9f976895 [2022-01-19 12:55:03,906 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 12:55:03,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-01-19 12:55:03,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b373fdd8/614f6072163443c9b365aed9833c1bfc/FLAGe9f976895 [2022-01-19 12:55:03,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b373fdd8/614f6072163443c9b365aed9833c1bfc [2022-01-19 12:55:03,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 12:55:03,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 12:55:03,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 12:55:03,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 12:55:03,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 12:55:03,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:55:03" (1/1) ... [2022-01-19 12:55:03,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7528fb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:03, skipping insertion in model container [2022-01-19 12:55:03,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:55:03" (1/1) ... [2022-01-19 12:55:03,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 12:55:03,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 12:55:04,073 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-chromosome-opt-symm.wvr.c[2566,2579] [2022-01-19 12:55:04,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:55:04,082 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 12:55:04,094 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-chromosome-opt-symm.wvr.c[2566,2579] [2022-01-19 12:55:04,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:55:04,104 INFO L208 MainTranslator]: Completed translation [2022-01-19 12:55:04,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04 WrapperNode [2022-01-19 12:55:04,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 12:55:04,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 12:55:04,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 12:55:04,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 12:55:04,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,130 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-01-19 12:55:04,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 12:55:04,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 12:55:04,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 12:55:04,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 12:55:04,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 12:55:04,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 12:55:04,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 12:55:04,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 12:55:04,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (1/1) ... [2022-01-19 12:55:04,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:55:04,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:55:04,180 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 12:55:04,187 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 12:55:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 12:55:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 12:55:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 12:55:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 12:55:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 12:55:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 12:55:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 12:55:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 12:55:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 12:55:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 12:55:04,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 12:55:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 12:55:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 12:55:04,205 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 12:55:04,271 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 12:55:04,274 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 12:55:04,469 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 12:55:04,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 12:55:04,476 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 12:55:04,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:55:04 BoogieIcfgContainer [2022-01-19 12:55:04,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 12:55:04,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 12:55:04,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 12:55:04,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 12:55:04,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 12:55:03" (1/3) ... [2022-01-19 12:55:04,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694567e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:55:04, skipping insertion in model container [2022-01-19 12:55:04,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:04" (2/3) ... [2022-01-19 12:55:04,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694567e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:55:04, skipping insertion in model container [2022-01-19 12:55:04,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:55:04" (3/3) ... [2022-01-19 12:55:04,483 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-01-19 12:55:04,486 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 12:55:04,486 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 12:55:04,486 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 12:55:04,515 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,515 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,527 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,527 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,527 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,527 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:55:04,566 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 12:55:04,609 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 12:55:04,615 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 12:55:04,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 12:55:04,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 222 transitions, 460 flow [2022-01-19 12:55:04,709 INFO L129 PetriNetUnfolder]: 21/220 cut-off events. [2022-01-19 12:55:04,710 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 12:55:04,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 21/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 263 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2022-01-19 12:55:04,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 222 transitions, 460 flow [2022-01-19 12:55:04,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 211 transitions, 434 flow [2022-01-19 12:55:04,764 INFO L129 PetriNetUnfolder]: 21/210 cut-off events. [2022-01-19 12:55:04,765 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 12:55:04,765 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:04,765 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] [2022-01-19 12:55:04,766 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:04,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:04,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1416583287, now seen corresponding path program 1 times [2022-01-19 12:55:04,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:04,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743136676] [2022-01-19 12:55:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:04,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:04,970 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 12:55:04,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:04,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743136676] [2022-01-19 12:55:04,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743136676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:04,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:04,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 12:55:04,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913615943] [2022-01-19 12:55:04,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:04,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 12:55:04,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 12:55:05,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 12:55:05,012 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 222 [2022-01-19 12:55:05,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 211 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:05,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 222 [2022-01-19 12:55:05,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:05,052 INFO L129 PetriNetUnfolder]: 10/200 cut-off events. [2022-01-19 12:55:05,053 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2022-01-19 12:55:05,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 200 events. 10/200 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 13/196 useless extension candidates. Maximal degree in co-relation 148. Up to 5 conditions per place. [2022-01-19 12:55:05,056 INFO L132 encePairwiseOnDemand]: 211/222 looper letters, 4 selfloop transitions, 0 changer transitions 5/200 dead transitions. [2022-01-19 12:55:05,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 200 transitions, 420 flow [2022-01-19 12:55:05,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 12:55:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 12:55:05,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 427 transitions. [2022-01-19 12:55:05,069 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9617117117117117 [2022-01-19 12:55:05,069 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 427 transitions. [2022-01-19 12:55:05,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 427 transitions. [2022-01-19 12:55:05,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:05,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 427 transitions. [2022-01-19 12:55:05,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 213.5) internal successors, (427), 2 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,084 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,085 INFO L186 Difference]: Start difference. First operand has 197 places, 211 transitions, 434 flow. Second operand 2 states and 427 transitions. [2022-01-19 12:55:05,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 200 transitions, 420 flow [2022-01-19 12:55:05,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 200 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 12:55:05,092 INFO L242 Difference]: Finished difference. Result has 194 places, 195 transitions, 394 flow [2022-01-19 12:55:05,093 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=194, PETRI_TRANSITIONS=195} [2022-01-19 12:55:05,096 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2022-01-19 12:55:05,096 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 195 transitions, 394 flow [2022-01-19 12:55:05,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,097 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:05,097 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] [2022-01-19 12:55:05,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 12:55:05,098 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:05,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:05,098 INFO L85 PathProgramCache]: Analyzing trace with hash -422266269, now seen corresponding path program 1 times [2022-01-19 12:55:05,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:05,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006146301] [2022-01-19 12:55:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:05,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:55:05,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:05,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006146301] [2022-01-19 12:55:05,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006146301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:05,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:05,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 12:55:05,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569854420] [2022-01-19 12:55:05,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:05,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 12:55:05,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 12:55:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-19 12:55:05,246 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 222 [2022-01-19 12:55:05,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 195 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:05,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 222 [2022-01-19 12:55:05,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:05,335 INFO L129 PetriNetUnfolder]: 10/207 cut-off events. [2022-01-19 12:55:05,335 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-01-19 12:55:05,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 207 events. 10/207 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2022-01-19 12:55:05,336 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 28 selfloop transitions, 8 changer transitions 0/203 dead transitions. [2022-01-19 12:55:05,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 203 transitions, 482 flow [2022-01-19 12:55:05,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 12:55:05,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 12:55:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 948 transitions. [2022-01-19 12:55:05,338 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8540540540540541 [2022-01-19 12:55:05,338 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 948 transitions. [2022-01-19 12:55:05,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 948 transitions. [2022-01-19 12:55:05,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:05,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 948 transitions. [2022-01-19 12:55:05,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.6) internal successors, (948), 5 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,343 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,343 INFO L186 Difference]: Start difference. First operand has 194 places, 195 transitions, 394 flow. Second operand 5 states and 948 transitions. [2022-01-19 12:55:05,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 203 transitions, 482 flow [2022-01-19 12:55:05,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 203 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 12:55:05,347 INFO L242 Difference]: Finished difference. Result has 194 places, 197 transitions, 426 flow [2022-01-19 12:55:05,347 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=194, PETRI_TRANSITIONS=197} [2022-01-19 12:55:05,348 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2022-01-19 12:55:05,348 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 197 transitions, 426 flow [2022-01-19 12:55:05,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,348 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:05,348 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] [2022-01-19 12:55:05,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 12:55:05,349 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:05,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash -419875030, now seen corresponding path program 1 times [2022-01-19 12:55:05,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:05,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817928504] [2022-01-19 12:55:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:05,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:55:05,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:05,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817928504] [2022-01-19 12:55:05,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817928504] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:55:05,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293836086] [2022-01-19 12:55:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:05,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:05,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:55:05,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:55:05,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 12:55:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:05,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 12:55:05,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:55:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:55:05,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:55:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:55:05,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293836086] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 12:55:05,984 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 12:55:05,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-19 12:55:05,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426564784] [2022-01-19 12:55:05,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 12:55:05,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 12:55:05,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 12:55:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-19 12:55:05,989 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2022-01-19 12:55:05,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 197 transitions, 426 flow. Second operand has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:05,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:05,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2022-01-19 12:55:05,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:06,153 INFO L129 PetriNetUnfolder]: 10/225 cut-off events. [2022-01-19 12:55:06,153 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2022-01-19 12:55:06,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 225 events. 10/225 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 226 event pairs, 0 based on Foata normal form. 4/219 useless extension candidates. Maximal degree in co-relation 295. Up to 19 conditions per place. [2022-01-19 12:55:06,155 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 30 selfloop transitions, 22 changer transitions 0/217 dead transitions. [2022-01-19 12:55:06,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 217 transitions, 574 flow [2022-01-19 12:55:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 12:55:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 12:55:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2036 transitions. [2022-01-19 12:55:06,159 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8337428337428338 [2022-01-19 12:55:06,159 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2036 transitions. [2022-01-19 12:55:06,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2036 transitions. [2022-01-19 12:55:06,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:06,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2036 transitions. [2022-01-19 12:55:06,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 185.0909090909091) internal successors, (2036), 11 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:06,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:06,185 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:06,186 INFO L186 Difference]: Start difference. First operand has 194 places, 197 transitions, 426 flow. Second operand 11 states and 2036 transitions. [2022-01-19 12:55:06,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 217 transitions, 574 flow [2022-01-19 12:55:06,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 217 transitions, 562 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 12:55:06,189 INFO L242 Difference]: Finished difference. Result has 204 places, 209 transitions, 525 flow [2022-01-19 12:55:06,189 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=525, PETRI_PLACES=204, PETRI_TRANSITIONS=209} [2022-01-19 12:55:06,191 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 7 predicate places. [2022-01-19 12:55:06,191 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 209 transitions, 525 flow [2022-01-19 12:55:06,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:06,193 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:06,193 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:06,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 12:55:06,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:06,399 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash -970353476, now seen corresponding path program 2 times [2022-01-19 12:55:06,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:06,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739551686] [2022-01-19 12:55:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:06,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 12:55:06,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:06,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739551686] [2022-01-19 12:55:06,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739551686] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:55:06,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501267045] [2022-01-19 12:55:06,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 12:55:06,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:06,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:55:06,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:55:06,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 12:55:06,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 12:55:06,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:55:06,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-19 12:55:06,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:55:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-19 12:55:06,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 12:55:06,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501267045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:06,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 12:55:06,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-19 12:55:06,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604278041] [2022-01-19 12:55:06,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:06,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:06,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:06,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:06,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-19 12:55:06,861 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:06,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 209 transitions, 525 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:06,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:06,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:06,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:07,033 INFO L129 PetriNetUnfolder]: 111/654 cut-off events. [2022-01-19 12:55:07,034 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-01-19 12:55:07,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 654 events. 111/654 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3161 event pairs, 7 based on Foata normal form. 0/587 useless extension candidates. Maximal degree in co-relation 883. Up to 70 conditions per place. [2022-01-19 12:55:07,037 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 50 selfloop transitions, 10 changer transitions 1/250 dead transitions. [2022-01-19 12:55:07,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 250 transitions, 734 flow [2022-01-19 12:55:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 12:55:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 12:55:07,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1583 transitions. [2022-01-19 12:55:07,039 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913288288288288 [2022-01-19 12:55:07,039 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1583 transitions. [2022-01-19 12:55:07,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1583 transitions. [2022-01-19 12:55:07,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:07,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1583 transitions. [2022-01-19 12:55:07,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 197.875) internal successors, (1583), 8 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:07,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:07,044 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:07,044 INFO L186 Difference]: Start difference. First operand has 204 places, 209 transitions, 525 flow. Second operand 8 states and 1583 transitions. [2022-01-19 12:55:07,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 250 transitions, 734 flow [2022-01-19 12:55:07,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 250 transitions, 717 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 12:55:07,050 INFO L242 Difference]: Finished difference. Result has 213 places, 216 transitions, 571 flow [2022-01-19 12:55:07,050 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=571, PETRI_PLACES=213, PETRI_TRANSITIONS=216} [2022-01-19 12:55:07,051 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 16 predicate places. [2022-01-19 12:55:07,051 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 216 transitions, 571 flow [2022-01-19 12:55:07,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:07,051 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:07,052 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:07,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 12:55:07,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-19 12:55:07,259 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash -475898132, now seen corresponding path program 3 times [2022-01-19 12:55:07,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:07,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138088221] [2022-01-19 12:55:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:07,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 12:55:07,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:07,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138088221] [2022-01-19 12:55:07,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138088221] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:55:07,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712219247] [2022-01-19 12:55:07,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 12:55:07,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:07,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:55:07,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:55:07,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 12:55:07,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-19 12:55:07,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:55:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-19 12:55:07,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:55:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-19 12:55:07,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 12:55:07,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712219247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:07,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 12:55:07,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-19 12:55:07,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978425283] [2022-01-19 12:55:07,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:07,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:07,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:07,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-01-19 12:55:07,701 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:07,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 216 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:07,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:07,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:07,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:08,019 INFO L129 PetriNetUnfolder]: 428/2270 cut-off events. [2022-01-19 12:55:08,019 INFO L130 PetriNetUnfolder]: For 201/212 co-relation queries the response was YES. [2022-01-19 12:55:08,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3130 conditions, 2270 events. 428/2270 cut-off events. For 201/212 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18503 event pairs, 83 based on Foata normal form. 1/2026 useless extension candidates. Maximal degree in co-relation 3118. Up to 244 conditions per place. [2022-01-19 12:55:08,031 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 59 selfloop transitions, 12 changer transitions 2/269 dead transitions. [2022-01-19 12:55:08,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 269 transitions, 834 flow [2022-01-19 12:55:08,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 12:55:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 12:55:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1595 transitions. [2022-01-19 12:55:08,033 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8980855855855856 [2022-01-19 12:55:08,033 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1595 transitions. [2022-01-19 12:55:08,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1595 transitions. [2022-01-19 12:55:08,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:08,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1595 transitions. [2022-01-19 12:55:08,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 199.375) internal successors, (1595), 8 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:08,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:08,039 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:08,039 INFO L186 Difference]: Start difference. First operand has 213 places, 216 transitions, 571 flow. Second operand 8 states and 1595 transitions. [2022-01-19 12:55:08,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 269 transitions, 834 flow [2022-01-19 12:55:08,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 269 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 12:55:08,044 INFO L242 Difference]: Finished difference. Result has 223 places, 228 transitions, 651 flow [2022-01-19 12:55:08,044 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=651, PETRI_PLACES=223, PETRI_TRANSITIONS=228} [2022-01-19 12:55:08,044 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 26 predicate places. [2022-01-19 12:55:08,044 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 228 transitions, 651 flow [2022-01-19 12:55:08,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:08,045 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:08,045 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:08,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 12:55:08,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:08,260 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash 6486200, now seen corresponding path program 4 times [2022-01-19 12:55:08,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:08,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592688972] [2022-01-19 12:55:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:08,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 12:55:08,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:08,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592688972] [2022-01-19 12:55:08,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592688972] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:55:08,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405368893] [2022-01-19 12:55:08,346 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 12:55:08,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:08,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:55:08,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:55:08,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 12:55:08,421 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 12:55:08,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:55:08,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 12:55:08,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:55:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 12:55:08,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:55:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 12:55:08,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405368893] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 12:55:08,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 12:55:08,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 12:55:08,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283280756] [2022-01-19 12:55:08,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 12:55:08,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 12:55:08,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:08,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 12:55:08,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-19 12:55:08,928 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2022-01-19 12:55:08,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 228 transitions, 651 flow. Second operand has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:08,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:08,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2022-01-19 12:55:08,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:09,232 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([615] thread2EXIT-->L90-2: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= v_thread2Thread1of1ForFork1_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem24#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][239], [Black: 222#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0)), Black: 1501#(or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0)))), 3194#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 1089#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 1)), Black: 1095#(and (< |ULTIMATE.start_create_fresh_int_array_~i~2#1| |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 2157#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (not (= ~isNullB~0 0))), 211#true, Black: 2155#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))), Black: 2153#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 0))) (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), Black: 2071#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), 1622#(and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1633#true, 128#L90-2true, Black: 1100#true, Black: 1620#(and (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0) (= ~isNullA~0 0))) (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0))))), Black: 1624#(and (<= |thread2Thread1of1ForFork1_~i~1#1| 0) (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1081#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-01-19 12:55:09,232 INFO L384 tUnfolder$Statistics]: this new event has 221 ancestors and is cut-off event [2022-01-19 12:55:09,232 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2022-01-19 12:55:09,232 INFO L387 tUnfolder$Statistics]: existing Event has 218 ancestors and is cut-off event [2022-01-19 12:55:09,232 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2022-01-19 12:55:09,238 INFO L129 PetriNetUnfolder]: 124/1135 cut-off events. [2022-01-19 12:55:09,238 INFO L130 PetriNetUnfolder]: For 157/171 co-relation queries the response was YES. [2022-01-19 12:55:09,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1135 events. 124/1135 cut-off events. For 157/171 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7053 event pairs, 8 based on Foata normal form. 5/1051 useless extension candidates. Maximal degree in co-relation 1539. Up to 45 conditions per place. [2022-01-19 12:55:09,245 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 38 selfloop transitions, 34 changer transitions 0/256 dead transitions. [2022-01-19 12:55:09,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 256 transitions, 907 flow [2022-01-19 12:55:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 12:55:09,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 12:55:09,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3136 transitions. [2022-01-19 12:55:09,249 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.830948595654478 [2022-01-19 12:55:09,249 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3136 transitions. [2022-01-19 12:55:09,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3136 transitions. [2022-01-19 12:55:09,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:09,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3136 transitions. [2022-01-19 12:55:09,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 184.47058823529412) internal successors, (3136), 17 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,259 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,259 INFO L186 Difference]: Start difference. First operand has 223 places, 228 transitions, 651 flow. Second operand 17 states and 3136 transitions. [2022-01-19 12:55:09,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 256 transitions, 907 flow [2022-01-19 12:55:09,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 256 transitions, 907 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 12:55:09,264 INFO L242 Difference]: Finished difference. Result has 242 places, 242 transitions, 826 flow [2022-01-19 12:55:09,264 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=826, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2022-01-19 12:55:09,265 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 45 predicate places. [2022-01-19 12:55:09,265 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 826 flow [2022-01-19 12:55:09,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,267 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:09,267 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:09,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 12:55:09,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:09,479 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:09,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1604527506, now seen corresponding path program 5 times [2022-01-19 12:55:09,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:09,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358104562] [2022-01-19 12:55:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:09,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:09,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:09,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358104562] [2022-01-19 12:55:09,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358104562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:09,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:09,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:09,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626314104] [2022-01-19 12:55:09,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:09,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:09,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:09,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:09,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:09,569 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:09,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:09,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:09,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:09,859 INFO L129 PetriNetUnfolder]: 485/2716 cut-off events. [2022-01-19 12:55:09,860 INFO L130 PetriNetUnfolder]: For 725/756 co-relation queries the response was YES. [2022-01-19 12:55:09,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4109 conditions, 2716 events. 485/2716 cut-off events. For 725/756 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 22667 event pairs, 91 based on Foata normal form. 25/2495 useless extension candidates. Maximal degree in co-relation 4088. Up to 300 conditions per place. [2022-01-19 12:55:09,877 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 40 selfloop transitions, 15 changer transitions 0/270 dead transitions. [2022-01-19 12:55:09,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 270 transitions, 1050 flow [2022-01-19 12:55:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:09,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-01-19 12:55:09,880 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2022-01-19 12:55:09,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-01-19 12:55:09,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-01-19 12:55:09,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:09,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-01-19 12:55:09,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,884 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,884 INFO L186 Difference]: Start difference. First operand has 242 places, 242 transitions, 826 flow. Second operand 6 states and 1188 transitions. [2022-01-19 12:55:09,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 270 transitions, 1050 flow [2022-01-19 12:55:09,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 270 transitions, 1005 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-01-19 12:55:09,889 INFO L242 Difference]: Finished difference. Result has 243 places, 249 transitions, 888 flow [2022-01-19 12:55:09,889 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=243, PETRI_TRANSITIONS=249} [2022-01-19 12:55:09,890 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 46 predicate places. [2022-01-19 12:55:09,890 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 249 transitions, 888 flow [2022-01-19 12:55:09,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,890 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:09,891 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:09,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 12:55:09,891 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:09,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1613833440, now seen corresponding path program 6 times [2022-01-19 12:55:09,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:09,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585585991] [2022-01-19 12:55:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:09,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:09,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:09,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585585991] [2022-01-19 12:55:09,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585585991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:09,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:09,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:09,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97562247] [2022-01-19 12:55:09,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:09,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:09,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:09,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:09,959 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:09,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 249 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:09,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:09,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:09,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:10,290 INFO L129 PetriNetUnfolder]: 571/3057 cut-off events. [2022-01-19 12:55:10,291 INFO L130 PetriNetUnfolder]: For 1620/1687 co-relation queries the response was YES. [2022-01-19 12:55:10,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 3057 events. 571/3057 cut-off events. For 1620/1687 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 27150 event pairs, 89 based on Foata normal form. 37/2806 useless extension candidates. Maximal degree in co-relation 4945. Up to 559 conditions per place. [2022-01-19 12:55:10,309 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 48 selfloop transitions, 17 changer transitions 0/280 dead transitions. [2022-01-19 12:55:10,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 280 transitions, 1168 flow [2022-01-19 12:55:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:10,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-01-19 12:55:10,311 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2022-01-19 12:55:10,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-01-19 12:55:10,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-01-19 12:55:10,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:10,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-01-19 12:55:10,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,315 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,315 INFO L186 Difference]: Start difference. First operand has 243 places, 249 transitions, 888 flow. Second operand 6 states and 1191 transitions. [2022-01-19 12:55:10,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 280 transitions, 1168 flow [2022-01-19 12:55:10,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 280 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 12:55:10,321 INFO L242 Difference]: Finished difference. Result has 251 places, 257 transitions, 1024 flow [2022-01-19 12:55:10,322 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1024, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2022-01-19 12:55:10,322 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 54 predicate places. [2022-01-19 12:55:10,322 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 1024 flow [2022-01-19 12:55:10,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:10,323 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:10,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 12:55:10,323 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:10,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1842969722, now seen corresponding path program 7 times [2022-01-19 12:55:10,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:10,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366417655] [2022-01-19 12:55:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:10,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:10,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:10,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366417655] [2022-01-19 12:55:10,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366417655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:10,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:10,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:10,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107680573] [2022-01-19 12:55:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:10,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:10,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:10,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:10,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:10,402 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:10,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 257 transitions, 1024 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:10,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:10,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:10,773 INFO L129 PetriNetUnfolder]: 641/3468 cut-off events. [2022-01-19 12:55:10,774 INFO L130 PetriNetUnfolder]: For 2839/2934 co-relation queries the response was YES. [2022-01-19 12:55:10,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 3468 events. 641/3468 cut-off events. For 2839/2934 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 32069 event pairs, 116 based on Foata normal form. 37/3165 useless extension candidates. Maximal degree in co-relation 5837. Up to 598 conditions per place. [2022-01-19 12:55:10,793 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 49 selfloop transitions, 16 changer transitions 0/280 dead transitions. [2022-01-19 12:55:10,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 280 transitions, 1285 flow [2022-01-19 12:55:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2022-01-19 12:55:10,795 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8911411411411412 [2022-01-19 12:55:10,795 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1187 transitions. [2022-01-19 12:55:10,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1187 transitions. [2022-01-19 12:55:10,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:10,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1187 transitions. [2022-01-19 12:55:10,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,799 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,799 INFO L186 Difference]: Start difference. First operand has 251 places, 257 transitions, 1024 flow. Second operand 6 states and 1187 transitions. [2022-01-19 12:55:10,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 280 transitions, 1285 flow [2022-01-19 12:55:10,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 280 transitions, 1272 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 12:55:10,807 INFO L242 Difference]: Finished difference. Result has 259 places, 262 transitions, 1136 flow [2022-01-19 12:55:10,808 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1136, PETRI_PLACES=259, PETRI_TRANSITIONS=262} [2022-01-19 12:55:10,808 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 62 predicate places. [2022-01-19 12:55:10,808 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 262 transitions, 1136 flow [2022-01-19 12:55:10,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,808 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:10,809 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:10,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 12:55:10,809 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:10,809 INFO L85 PathProgramCache]: Analyzing trace with hash -194760392, now seen corresponding path program 8 times [2022-01-19 12:55:10,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:10,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528298444] [2022-01-19 12:55:10,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:10,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:10,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:10,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528298444] [2022-01-19 12:55:10,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528298444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:10,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:10,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:10,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652294024] [2022-01-19 12:55:10,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:10,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:10,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:10,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:10,862 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:10,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 262 transitions, 1136 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:10,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:10,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:10,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:11,362 INFO L129 PetriNetUnfolder]: 823/4769 cut-off events. [2022-01-19 12:55:11,362 INFO L130 PetriNetUnfolder]: For 3094/3205 co-relation queries the response was YES. [2022-01-19 12:55:11,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7779 conditions, 4769 events. 823/4769 cut-off events. For 3094/3205 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 49245 event pairs, 202 based on Foata normal form. 25/4355 useless extension candidates. Maximal degree in co-relation 7746. Up to 900 conditions per place. [2022-01-19 12:55:11,393 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 46 selfloop transitions, 13 changer transitions 0/289 dead transitions. [2022-01-19 12:55:11,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 289 transitions, 1346 flow [2022-01-19 12:55:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-01-19 12:55:11,395 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2022-01-19 12:55:11,395 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-01-19 12:55:11,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-01-19 12:55:11,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:11,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-01-19 12:55:11,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:11,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:11,399 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:11,399 INFO L186 Difference]: Start difference. First operand has 259 places, 262 transitions, 1136 flow. Second operand 6 states and 1188 transitions. [2022-01-19 12:55:11,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 289 transitions, 1346 flow [2022-01-19 12:55:11,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 289 transitions, 1333 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 12:55:11,409 INFO L242 Difference]: Finished difference. Result has 268 places, 271 transitions, 1229 flow [2022-01-19 12:55:11,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1229, PETRI_PLACES=268, PETRI_TRANSITIONS=271} [2022-01-19 12:55:11,410 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 71 predicate places. [2022-01-19 12:55:11,410 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 271 transitions, 1229 flow [2022-01-19 12:55:11,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:11,411 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:11,411 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:11,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 12:55:11,411 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1286052604, now seen corresponding path program 9 times [2022-01-19 12:55:11,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:11,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917709400] [2022-01-19 12:55:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:11,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:11,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:11,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917709400] [2022-01-19 12:55:11,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917709400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:11,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:11,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:11,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342472448] [2022-01-19 12:55:11,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:11,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:11,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:11,477 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:11,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 271 transitions, 1229 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:11,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:11,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:11,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:12,031 INFO L129 PetriNetUnfolder]: 915/5446 cut-off events. [2022-01-19 12:55:12,031 INFO L130 PetriNetUnfolder]: For 4464/4599 co-relation queries the response was YES. [2022-01-19 12:55:12,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9252 conditions, 5446 events. 915/5446 cut-off events. For 4464/4599 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 58210 event pairs, 201 based on Foata normal form. 30/4980 useless extension candidates. Maximal degree in co-relation 9215. Up to 920 conditions per place. [2022-01-19 12:55:12,065 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 61 selfloop transitions, 19 changer transitions 0/310 dead transitions. [2022-01-19 12:55:12,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 310 transitions, 1555 flow [2022-01-19 12:55:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:12,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:12,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2022-01-19 12:55:12,068 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9001501501501501 [2022-01-19 12:55:12,068 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1199 transitions. [2022-01-19 12:55:12,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1199 transitions. [2022-01-19 12:55:12,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:12,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1199 transitions. [2022-01-19 12:55:12,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,071 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,071 INFO L186 Difference]: Start difference. First operand has 268 places, 271 transitions, 1229 flow. Second operand 6 states and 1199 transitions. [2022-01-19 12:55:12,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 310 transitions, 1555 flow [2022-01-19 12:55:12,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 310 transitions, 1543 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-01-19 12:55:12,086 INFO L242 Difference]: Finished difference. Result has 278 places, 282 transitions, 1385 flow [2022-01-19 12:55:12,087 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1385, PETRI_PLACES=278, PETRI_TRANSITIONS=282} [2022-01-19 12:55:12,087 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 81 predicate places. [2022-01-19 12:55:12,087 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 282 transitions, 1385 flow [2022-01-19 12:55:12,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,087 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:12,088 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:12,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 12:55:12,088 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:12,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:12,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1651178468, now seen corresponding path program 10 times [2022-01-19 12:55:12,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:12,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100760642] [2022-01-19 12:55:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:12,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:12,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:12,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100760642] [2022-01-19 12:55:12,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100760642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:12,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:12,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:12,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363302800] [2022-01-19 12:55:12,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:12,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:12,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:12,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:12,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:12,148 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:12,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 282 transitions, 1385 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:12,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:12,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:12,752 INFO L129 PetriNetUnfolder]: 1049/6035 cut-off events. [2022-01-19 12:55:12,752 INFO L130 PetriNetUnfolder]: For 5795/5924 co-relation queries the response was YES. [2022-01-19 12:55:12,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10636 conditions, 6035 events. 1049/6035 cut-off events. For 5795/5924 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 65113 event pairs, 123 based on Foata normal form. 38/5547 useless extension candidates. Maximal degree in co-relation 10594. Up to 953 conditions per place. [2022-01-19 12:55:12,792 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 66 selfloop transitions, 24 changer transitions 0/320 dead transitions. [2022-01-19 12:55:12,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 320 transitions, 1737 flow [2022-01-19 12:55:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:12,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2022-01-19 12:55:12,795 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9016516516516516 [2022-01-19 12:55:12,795 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1201 transitions. [2022-01-19 12:55:12,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1201 transitions. [2022-01-19 12:55:12,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:12,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1201 transitions. [2022-01-19 12:55:12,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,799 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,799 INFO L186 Difference]: Start difference. First operand has 278 places, 282 transitions, 1385 flow. Second operand 6 states and 1201 transitions. [2022-01-19 12:55:12,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 320 transitions, 1737 flow [2022-01-19 12:55:12,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 320 transitions, 1731 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-01-19 12:55:12,870 INFO L242 Difference]: Finished difference. Result has 287 places, 290 transitions, 1548 flow [2022-01-19 12:55:12,871 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1548, PETRI_PLACES=287, PETRI_TRANSITIONS=290} [2022-01-19 12:55:12,872 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 90 predicate places. [2022-01-19 12:55:12,872 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 290 transitions, 1548 flow [2022-01-19 12:55:12,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:12,872 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:12,872 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:12,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 12:55:12,874 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:12,874 INFO L85 PathProgramCache]: Analyzing trace with hash -197382220, now seen corresponding path program 1 times [2022-01-19 12:55:12,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:12,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582935158] [2022-01-19 12:55:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:12,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:12,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:12,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582935158] [2022-01-19 12:55:12,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582935158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:12,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:12,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:12,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102504086] [2022-01-19 12:55:12,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:12,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:12,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:12,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:12,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:13,000 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:13,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 290 transitions, 1548 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:13,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:13,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:13,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:13,746 INFO L129 PetriNetUnfolder]: 1035/6038 cut-off events. [2022-01-19 12:55:13,747 INFO L130 PetriNetUnfolder]: For 7318/7492 co-relation queries the response was YES. [2022-01-19 12:55:13,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11237 conditions, 6038 events. 1035/6038 cut-off events. For 7318/7492 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 65721 event pairs, 150 based on Foata normal form. 39/5552 useless extension candidates. Maximal degree in co-relation 11190. Up to 531 conditions per place. [2022-01-19 12:55:13,775 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 83 selfloop transitions, 20 changer transitions 14/347 dead transitions. [2022-01-19 12:55:13,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 347 transitions, 2144 flow [2022-01-19 12:55:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 12:55:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 12:55:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1780 transitions. [2022-01-19 12:55:13,778 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8908908908908909 [2022-01-19 12:55:13,778 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1780 transitions. [2022-01-19 12:55:13,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1780 transitions. [2022-01-19 12:55:13,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:13,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1780 transitions. [2022-01-19 12:55:13,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.77777777777777) internal successors, (1780), 9 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:13,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:13,783 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:13,783 INFO L186 Difference]: Start difference. First operand has 287 places, 290 transitions, 1548 flow. Second operand 9 states and 1780 transitions. [2022-01-19 12:55:13,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 347 transitions, 2144 flow [2022-01-19 12:55:13,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 347 transitions, 2125 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 12:55:13,803 INFO L242 Difference]: Finished difference. Result has 299 places, 296 transitions, 1668 flow [2022-01-19 12:55:13,804 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1668, PETRI_PLACES=299, PETRI_TRANSITIONS=296} [2022-01-19 12:55:13,804 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 102 predicate places. [2022-01-19 12:55:13,804 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 296 transitions, 1668 flow [2022-01-19 12:55:13,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:13,804 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:13,805 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:13,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 12:55:13,805 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:13,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1101194472, now seen corresponding path program 2 times [2022-01-19 12:55:13,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:13,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520572001] [2022-01-19 12:55:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:13,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:13,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:13,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520572001] [2022-01-19 12:55:13,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520572001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:13,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:13,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:13,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428999076] [2022-01-19 12:55:13,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:13,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:13,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:13,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:13,925 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:13,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 296 transitions, 1668 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:13,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:13,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:13,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:14,694 INFO L129 PetriNetUnfolder]: 999/5942 cut-off events. [2022-01-19 12:55:14,694 INFO L130 PetriNetUnfolder]: For 7826/8017 co-relation queries the response was YES. [2022-01-19 12:55:14,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11184 conditions, 5942 events. 999/5942 cut-off events. For 7826/8017 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 64369 event pairs, 100 based on Foata normal form. 64/5504 useless extension candidates. Maximal degree in co-relation 11132. Up to 531 conditions per place. [2022-01-19 12:55:14,723 INFO L132 encePairwiseOnDemand]: 210/222 looper letters, 73 selfloop transitions, 41 changer transitions 4/348 dead transitions. [2022-01-19 12:55:14,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 348 transitions, 2161 flow [2022-01-19 12:55:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 12:55:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 12:55:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1603 transitions. [2022-01-19 12:55:14,725 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9025900900900901 [2022-01-19 12:55:14,725 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1603 transitions. [2022-01-19 12:55:14,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1603 transitions. [2022-01-19 12:55:14,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:14,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1603 transitions. [2022-01-19 12:55:14,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 200.375) internal successors, (1603), 8 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:14,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:14,730 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:14,730 INFO L186 Difference]: Start difference. First operand has 299 places, 296 transitions, 1668 flow. Second operand 8 states and 1603 transitions. [2022-01-19 12:55:14,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 348 transitions, 2161 flow [2022-01-19 12:55:14,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 348 transitions, 2148 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 12:55:14,807 INFO L242 Difference]: Finished difference. Result has 303 places, 305 transitions, 1884 flow [2022-01-19 12:55:14,808 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1884, PETRI_PLACES=303, PETRI_TRANSITIONS=305} [2022-01-19 12:55:14,808 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 106 predicate places. [2022-01-19 12:55:14,809 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 305 transitions, 1884 flow [2022-01-19 12:55:14,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:14,809 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:14,809 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:14,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 12:55:14,810 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:14,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -173112068, now seen corresponding path program 3 times [2022-01-19 12:55:14,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:14,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435521674] [2022-01-19 12:55:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:14,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:14,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:14,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435521674] [2022-01-19 12:55:14,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435521674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:14,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:14,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:14,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976223224] [2022-01-19 12:55:14,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:14,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:14,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:14,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:14,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:14,871 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:14,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 305 transitions, 1884 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:14,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:14,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:14,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:15,635 INFO L129 PetriNetUnfolder]: 967/5605 cut-off events. [2022-01-19 12:55:15,635 INFO L130 PetriNetUnfolder]: For 9099/9301 co-relation queries the response was YES. [2022-01-19 12:55:15,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11148 conditions, 5605 events. 967/5605 cut-off events. For 9099/9301 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 59386 event pairs, 141 based on Foata normal form. 66/5192 useless extension candidates. Maximal degree in co-relation 11094. Up to 532 conditions per place. [2022-01-19 12:55:15,717 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 73 selfloop transitions, 34 changer transitions 8/345 dead transitions. [2022-01-19 12:55:15,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 345 transitions, 2274 flow [2022-01-19 12:55:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 12:55:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 12:55:15,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1786 transitions. [2022-01-19 12:55:15,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8938938938938938 [2022-01-19 12:55:15,728 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1786 transitions. [2022-01-19 12:55:15,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1786 transitions. [2022-01-19 12:55:15,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:15,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1786 transitions. [2022-01-19 12:55:15,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 198.44444444444446) internal successors, (1786), 9 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:15,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:15,732 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:15,732 INFO L186 Difference]: Start difference. First operand has 303 places, 305 transitions, 1884 flow. Second operand 9 states and 1786 transitions. [2022-01-19 12:55:15,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 345 transitions, 2274 flow [2022-01-19 12:55:15,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 345 transitions, 2231 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-01-19 12:55:15,760 INFO L242 Difference]: Finished difference. Result has 310 places, 305 transitions, 1936 flow [2022-01-19 12:55:15,760 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1843, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1936, PETRI_PLACES=310, PETRI_TRANSITIONS=305} [2022-01-19 12:55:15,761 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 113 predicate places. [2022-01-19 12:55:15,761 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 305 transitions, 1936 flow [2022-01-19 12:55:15,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:15,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:15,761 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:15,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 12:55:15,761 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:15,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1678622644, now seen corresponding path program 1 times [2022-01-19 12:55:15,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:15,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886608727] [2022-01-19 12:55:15,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:15,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:15,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:15,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886608727] [2022-01-19 12:55:15,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886608727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:15,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:15,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:15,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871547410] [2022-01-19 12:55:15,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:15,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:15,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:15,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:15,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:15,835 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:15,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 305 transitions, 1936 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:15,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:15,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:15,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:16,443 INFO L129 PetriNetUnfolder]: 939/4817 cut-off events. [2022-01-19 12:55:16,443 INFO L130 PetriNetUnfolder]: For 7423/7565 co-relation queries the response was YES. [2022-01-19 12:55:16,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9485 conditions, 4817 events. 939/4817 cut-off events. For 7423/7565 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49108 event pairs, 126 based on Foata normal form. 52/4408 useless extension candidates. Maximal degree in co-relation 9429. Up to 980 conditions per place. [2022-01-19 12:55:16,470 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 15 changer transitions 1/326 dead transitions. [2022-01-19 12:55:16,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 326 transitions, 2174 flow [2022-01-19 12:55:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-01-19 12:55:16,472 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2022-01-19 12:55:16,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-01-19 12:55:16,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-01-19 12:55:16,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:16,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-01-19 12:55:16,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:16,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:16,474 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:16,475 INFO L186 Difference]: Start difference. First operand has 310 places, 305 transitions, 1936 flow. Second operand 6 states and 1188 transitions. [2022-01-19 12:55:16,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 326 transitions, 2174 flow [2022-01-19 12:55:16,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 326 transitions, 2096 flow, removed 4 selfloop flow, removed 8 redundant places. [2022-01-19 12:55:16,498 INFO L242 Difference]: Finished difference. Result has 307 places, 305 transitions, 1896 flow [2022-01-19 12:55:16,498 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1858, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1896, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2022-01-19 12:55:16,498 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 110 predicate places. [2022-01-19 12:55:16,498 INFO L470 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 1896 flow [2022-01-19 12:55:16,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:16,499 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:16,499 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:16,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 12:55:16,499 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:16,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:16,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1415945376, now seen corresponding path program 2 times [2022-01-19 12:55:16,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:16,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075848095] [2022-01-19 12:55:16,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:16,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:16,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:16,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075848095] [2022-01-19 12:55:16,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075848095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:16,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:16,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:16,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112587674] [2022-01-19 12:55:16,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:16,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:16,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:16,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:16,559 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:16,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 1896 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:16,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:16,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:16,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:17,247 INFO L129 PetriNetUnfolder]: 958/4965 cut-off events. [2022-01-19 12:55:17,247 INFO L130 PetriNetUnfolder]: For 7928/8059 co-relation queries the response was YES. [2022-01-19 12:55:17,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9780 conditions, 4965 events. 958/4965 cut-off events. For 7928/8059 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 51083 event pairs, 149 based on Foata normal form. 38/4521 useless extension candidates. Maximal degree in co-relation 9724. Up to 1039 conditions per place. [2022-01-19 12:55:17,281 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 17 changer transitions 1/328 dead transitions. [2022-01-19 12:55:17,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 328 transitions, 2156 flow [2022-01-19 12:55:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2022-01-19 12:55:17,283 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8933933933933934 [2022-01-19 12:55:17,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2022-01-19 12:55:17,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2022-01-19 12:55:17,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:17,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2022-01-19 12:55:17,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:17,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:17,286 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:17,286 INFO L186 Difference]: Start difference. First operand has 307 places, 305 transitions, 1896 flow. Second operand 6 states and 1190 transitions. [2022-01-19 12:55:17,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 328 transitions, 2156 flow [2022-01-19 12:55:17,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 328 transitions, 2120 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-01-19 12:55:17,311 INFO L242 Difference]: Finished difference. Result has 309 places, 308 transitions, 1954 flow [2022-01-19 12:55:17,311 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1864, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1954, PETRI_PLACES=309, PETRI_TRANSITIONS=308} [2022-01-19 12:55:17,311 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 112 predicate places. [2022-01-19 12:55:17,311 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 308 transitions, 1954 flow [2022-01-19 12:55:17,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:17,312 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:17,312 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:17,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 12:55:17,312 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:17,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:17,312 INFO L85 PathProgramCache]: Analyzing trace with hash -46372404, now seen corresponding path program 3 times [2022-01-19 12:55:17,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:17,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216530560] [2022-01-19 12:55:17,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:17,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:17,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:17,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216530560] [2022-01-19 12:55:17,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216530560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:17,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:17,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:17,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171499019] [2022-01-19 12:55:17,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:17,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:17,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:17,384 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:17,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 308 transitions, 1954 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:17,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:17,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:17,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:18,050 INFO L129 PetriNetUnfolder]: 954/4900 cut-off events. [2022-01-19 12:55:18,050 INFO L130 PetriNetUnfolder]: For 8614/8746 co-relation queries the response was YES. [2022-01-19 12:55:18,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9775 conditions, 4900 events. 954/4900 cut-off events. For 8614/8746 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 50178 event pairs, 178 based on Foata normal form. 34/4451 useless extension candidates. Maximal degree in co-relation 9717. Up to 1039 conditions per place. [2022-01-19 12:55:18,084 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 54 selfloop transitions, 10 changer transitions 3/323 dead transitions. [2022-01-19 12:55:18,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 323 transitions, 2174 flow [2022-01-19 12:55:18,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2022-01-19 12:55:18,085 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2022-01-19 12:55:18,085 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1180 transitions. [2022-01-19 12:55:18,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1180 transitions. [2022-01-19 12:55:18,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:18,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1180 transitions. [2022-01-19 12:55:18,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.66666666666666) internal successors, (1180), 6 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,088 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,088 INFO L186 Difference]: Start difference. First operand has 309 places, 308 transitions, 1954 flow. Second operand 6 states and 1180 transitions. [2022-01-19 12:55:18,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 323 transitions, 2174 flow [2022-01-19 12:55:18,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 323 transitions, 2159 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-01-19 12:55:18,113 INFO L242 Difference]: Finished difference. Result has 313 places, 308 transitions, 1972 flow [2022-01-19 12:55:18,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1972, PETRI_PLACES=313, PETRI_TRANSITIONS=308} [2022-01-19 12:55:18,113 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 116 predicate places. [2022-01-19 12:55:18,113 INFO L470 AbstractCegarLoop]: Abstraction has has 313 places, 308 transitions, 1972 flow [2022-01-19 12:55:18,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:18,114 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:18,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 12:55:18,114 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1865148348, now seen corresponding path program 4 times [2022-01-19 12:55:18,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:18,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167499409] [2022-01-19 12:55:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:18,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:18,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:18,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167499409] [2022-01-19 12:55:18,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167499409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:18,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:18,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:18,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637111634] [2022-01-19 12:55:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:18,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:18,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:18,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:18,161 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:18,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 308 transitions, 1972 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:18,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:18,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:18,807 INFO L129 PetriNetUnfolder]: 943/5004 cut-off events. [2022-01-19 12:55:18,807 INFO L130 PetriNetUnfolder]: For 9173/9303 co-relation queries the response was YES. [2022-01-19 12:55:18,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10004 conditions, 5004 events. 943/5004 cut-off events. For 9173/9303 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 51552 event pairs, 177 based on Foata normal form. 27/4550 useless extension candidates. Maximal degree in co-relation 9944. Up to 648 conditions per place. [2022-01-19 12:55:18,850 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 60 selfloop transitions, 12 changer transitions 3/331 dead transitions. [2022-01-19 12:55:18,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 331 transitions, 2272 flow [2022-01-19 12:55:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1182 transitions. [2022-01-19 12:55:18,852 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8873873873873874 [2022-01-19 12:55:18,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1182 transitions. [2022-01-19 12:55:18,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1182 transitions. [2022-01-19 12:55:18,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:18,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1182 transitions. [2022-01-19 12:55:18,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,855 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,855 INFO L186 Difference]: Start difference. First operand has 313 places, 308 transitions, 1972 flow. Second operand 6 states and 1182 transitions. [2022-01-19 12:55:18,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 331 transitions, 2272 flow [2022-01-19 12:55:18,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 331 transitions, 2238 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 12:55:18,885 INFO L242 Difference]: Finished difference. Result has 314 places, 309 transitions, 2001 flow [2022-01-19 12:55:18,885 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1942, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2001, PETRI_PLACES=314, PETRI_TRANSITIONS=309} [2022-01-19 12:55:18,885 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 117 predicate places. [2022-01-19 12:55:18,885 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 309 transitions, 2001 flow [2022-01-19 12:55:18,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,885 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:18,886 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:18,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 12:55:18,886 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:18,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1674637420, now seen corresponding path program 5 times [2022-01-19 12:55:18,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:18,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236726938] [2022-01-19 12:55:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:18,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:18,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:18,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236726938] [2022-01-19 12:55:18,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236726938] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:18,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:18,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:18,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59213003] [2022-01-19 12:55:18,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:18,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:18,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:18,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:18,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:18,948 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:18,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 309 transitions, 2001 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:18,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:18,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:18,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:19,684 INFO L129 PetriNetUnfolder]: 925/4889 cut-off events. [2022-01-19 12:55:19,684 INFO L130 PetriNetUnfolder]: For 9231/9369 co-relation queries the response was YES. [2022-01-19 12:55:19,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9898 conditions, 4889 events. 925/4889 cut-off events. For 9231/9369 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 50107 event pairs, 111 based on Foata normal form. 45/4477 useless extension candidates. Maximal degree in co-relation 9837. Up to 584 conditions per place. [2022-01-19 12:55:19,731 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 51 selfloop transitions, 24 changer transitions 2/333 dead transitions. [2022-01-19 12:55:19,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 333 transitions, 2287 flow [2022-01-19 12:55:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:19,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-01-19 12:55:19,733 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2022-01-19 12:55:19,733 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-01-19 12:55:19,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-01-19 12:55:19,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:19,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-01-19 12:55:19,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:19,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:19,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:19,735 INFO L186 Difference]: Start difference. First operand has 314 places, 309 transitions, 2001 flow. Second operand 6 states and 1191 transitions. [2022-01-19 12:55:19,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 333 transitions, 2287 flow [2022-01-19 12:55:19,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 333 transitions, 2260 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-19 12:55:19,765 INFO L242 Difference]: Finished difference. Result has 316 places, 312 transitions, 2090 flow [2022-01-19 12:55:19,765 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2090, PETRI_PLACES=316, PETRI_TRANSITIONS=312} [2022-01-19 12:55:19,766 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 119 predicate places. [2022-01-19 12:55:19,766 INFO L470 AbstractCegarLoop]: Abstraction has has 316 places, 312 transitions, 2090 flow [2022-01-19 12:55:19,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:19,766 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:19,766 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:19,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 12:55:19,767 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:19,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1209724388, now seen corresponding path program 6 times [2022-01-19 12:55:19,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:19,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792068531] [2022-01-19 12:55:19,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:19,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:19,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792068531] [2022-01-19 12:55:19,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792068531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:19,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:19,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:19,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434252373] [2022-01-19 12:55:19,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:19,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:19,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:19,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:19,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:19,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:19,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 2090 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:19,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:19,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:19,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:20,446 INFO L129 PetriNetUnfolder]: 920/4764 cut-off events. [2022-01-19 12:55:20,446 INFO L130 PetriNetUnfolder]: For 9840/9979 co-relation queries the response was YES. [2022-01-19 12:55:20,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9842 conditions, 4764 events. 920/4764 cut-off events. For 9840/9979 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 48375 event pairs, 132 based on Foata normal form. 39/4346 useless extension candidates. Maximal degree in co-relation 9780. Up to 602 conditions per place. [2022-01-19 12:55:20,484 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 49 selfloop transitions, 20 changer transitions 4/329 dead transitions. [2022-01-19 12:55:20,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 329 transitions, 2331 flow [2022-01-19 12:55:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 12:55:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 12:55:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1183 transitions. [2022-01-19 12:55:20,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8881381381381381 [2022-01-19 12:55:20,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1183 transitions. [2022-01-19 12:55:20,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1183 transitions. [2022-01-19 12:55:20,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:20,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1183 transitions. [2022-01-19 12:55:20,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:20,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:20,499 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:20,499 INFO L186 Difference]: Start difference. First operand has 316 places, 312 transitions, 2090 flow. Second operand 6 states and 1183 transitions. [2022-01-19 12:55:20,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 329 transitions, 2331 flow [2022-01-19 12:55:20,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 329 transitions, 2305 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-01-19 12:55:20,530 INFO L242 Difference]: Finished difference. Result has 319 places, 311 transitions, 2089 flow [2022-01-19 12:55:20,530 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2064, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2089, PETRI_PLACES=319, PETRI_TRANSITIONS=311} [2022-01-19 12:55:20,530 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 122 predicate places. [2022-01-19 12:55:20,530 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 311 transitions, 2089 flow [2022-01-19 12:55:20,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:20,531 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:20,531 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:20,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 12:55:20,531 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1932845862, now seen corresponding path program 4 times [2022-01-19 12:55:20,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:20,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831994626] [2022-01-19 12:55:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:20,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:20,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:20,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831994626] [2022-01-19 12:55:20,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831994626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:20,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:20,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:20,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033333176] [2022-01-19 12:55:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:20,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:20,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:20,587 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:20,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 311 transitions, 2089 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:20,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:20,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:20,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:21,225 INFO L129 PetriNetUnfolder]: 929/5304 cut-off events. [2022-01-19 12:55:21,225 INFO L130 PetriNetUnfolder]: For 11432/11638 co-relation queries the response was YES. [2022-01-19 12:55:21,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10999 conditions, 5304 events. 929/5304 cut-off events. For 11432/11638 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 55075 event pairs, 171 based on Foata normal form. 53/4904 useless extension candidates. Maximal degree in co-relation 10936. Up to 830 conditions per place. [2022-01-19 12:55:21,267 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 88 selfloop transitions, 24 changer transitions 7/355 dead transitions. [2022-01-19 12:55:21,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 355 transitions, 2533 flow [2022-01-19 12:55:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 12:55:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 12:55:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1591 transitions. [2022-01-19 12:55:21,269 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2022-01-19 12:55:21,269 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1591 transitions. [2022-01-19 12:55:21,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1591 transitions. [2022-01-19 12:55:21,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:21,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1591 transitions. [2022-01-19 12:55:21,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.875) internal successors, (1591), 8 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:21,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:21,272 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:21,272 INFO L186 Difference]: Start difference. First operand has 319 places, 311 transitions, 2089 flow. Second operand 8 states and 1591 transitions. [2022-01-19 12:55:21,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 355 transitions, 2533 flow [2022-01-19 12:55:21,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 355 transitions, 2460 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-01-19 12:55:21,305 INFO L242 Difference]: Finished difference. Result has 318 places, 312 transitions, 2080 flow [2022-01-19 12:55:21,305 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2080, PETRI_PLACES=318, PETRI_TRANSITIONS=312} [2022-01-19 12:55:21,306 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 121 predicate places. [2022-01-19 12:55:21,306 INFO L470 AbstractCegarLoop]: Abstraction has has 318 places, 312 transitions, 2080 flow [2022-01-19 12:55:21,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:21,306 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:21,306 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:21,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 12:55:21,306 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1389225224, now seen corresponding path program 5 times [2022-01-19 12:55:21,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:21,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434752662] [2022-01-19 12:55:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:21,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:21,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:21,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434752662] [2022-01-19 12:55:21,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434752662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:21,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:21,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:21,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711689903] [2022-01-19 12:55:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:21,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:21,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:21,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:21,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 312 transitions, 2080 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:21,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:21,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:21,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:22,015 INFO L129 PetriNetUnfolder]: 912/5132 cut-off events. [2022-01-19 12:55:22,015 INFO L130 PetriNetUnfolder]: For 10219/10413 co-relation queries the response was YES. [2022-01-19 12:55:22,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10651 conditions, 5132 events. 912/5132 cut-off events. For 10219/10413 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 52773 event pairs, 165 based on Foata normal form. 57/4753 useless extension candidates. Maximal degree in co-relation 10590. Up to 830 conditions per place. [2022-01-19 12:55:22,055 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 85 selfloop transitions, 30 changer transitions 4/355 dead transitions. [2022-01-19 12:55:22,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 355 transitions, 2483 flow [2022-01-19 12:55:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 12:55:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 12:55:22,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1409 transitions. [2022-01-19 12:55:22,057 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9066924066924067 [2022-01-19 12:55:22,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1409 transitions. [2022-01-19 12:55:22,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1409 transitions. [2022-01-19 12:55:22,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:22,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1409 transitions. [2022-01-19 12:55:22,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 201.28571428571428) internal successors, (1409), 7 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,059 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,059 INFO L186 Difference]: Start difference. First operand has 318 places, 312 transitions, 2080 flow. Second operand 7 states and 1409 transitions. [2022-01-19 12:55:22,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 355 transitions, 2483 flow [2022-01-19 12:55:22,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 355 transitions, 2434 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-01-19 12:55:22,092 INFO L242 Difference]: Finished difference. Result has 320 places, 313 transitions, 2128 flow [2022-01-19 12:55:22,092 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2034, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2128, PETRI_PLACES=320, PETRI_TRANSITIONS=313} [2022-01-19 12:55:22,092 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 123 predicate places. [2022-01-19 12:55:22,092 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 313 transitions, 2128 flow [2022-01-19 12:55:22,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,093 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:22,093 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:22,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 12:55:22,093 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1434153486, now seen corresponding path program 6 times [2022-01-19 12:55:22,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:22,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881002745] [2022-01-19 12:55:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:22,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:22,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:22,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881002745] [2022-01-19 12:55:22,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881002745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:22,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:22,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:55:22,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474282715] [2022-01-19 12:55:22,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:22,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:55:22,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:22,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:55:22,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:55:22,152 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 12:55:22,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 313 transitions, 2128 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:22,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 12:55:22,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:22,763 INFO L129 PetriNetUnfolder]: 895/4948 cut-off events. [2022-01-19 12:55:22,763 INFO L130 PetriNetUnfolder]: For 10616/10829 co-relation queries the response was YES. [2022-01-19 12:55:22,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10454 conditions, 4948 events. 895/4948 cut-off events. For 10616/10829 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 50393 event pairs, 105 based on Foata normal form. 64/4604 useless extension candidates. Maximal degree in co-relation 10393. Up to 699 conditions per place. [2022-01-19 12:55:22,802 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 82 selfloop transitions, 32 changer transitions 5/355 dead transitions. [2022-01-19 12:55:22,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 355 transitions, 2538 flow [2022-01-19 12:55:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 12:55:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 12:55:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1405 transitions. [2022-01-19 12:55:22,804 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9041184041184042 [2022-01-19 12:55:22,804 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1405 transitions. [2022-01-19 12:55:22,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1405 transitions. [2022-01-19 12:55:22,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:22,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1405 transitions. [2022-01-19 12:55:22,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 200.71428571428572) internal successors, (1405), 7 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,807 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,807 INFO L186 Difference]: Start difference. First operand has 320 places, 313 transitions, 2128 flow. Second operand 7 states and 1405 transitions. [2022-01-19 12:55:22,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 355 transitions, 2538 flow [2022-01-19 12:55:22,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 355 transitions, 2490 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-01-19 12:55:22,842 INFO L242 Difference]: Finished difference. Result has 322 places, 313 transitions, 2146 flow [2022-01-19 12:55:22,843 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2146, PETRI_PLACES=322, PETRI_TRANSITIONS=313} [2022-01-19 12:55:22,843 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 125 predicate places. [2022-01-19 12:55:22,843 INFO L470 AbstractCegarLoop]: Abstraction has has 322 places, 313 transitions, 2146 flow [2022-01-19 12:55:22,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:22,843 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:22,843 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:22,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 12:55:22,843 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:22,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:22,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1117174808, now seen corresponding path program 1 times [2022-01-19 12:55:22,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:22,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334903186] [2022-01-19 12:55:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:22,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:23,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:23,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334903186] [2022-01-19 12:55:23,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334903186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:23,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:23,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:55:23,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93004006] [2022-01-19 12:55:23,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:23,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:55:23,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:23,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:55:23,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:55:23,156 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:55:23,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 313 transitions, 2146 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:23,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:23,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:55:23,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:28,835 INFO L129 PetriNetUnfolder]: 14321/38058 cut-off events. [2022-01-19 12:55:28,835 INFO L130 PetriNetUnfolder]: For 73054/73211 co-relation queries the response was YES. [2022-01-19 12:55:29,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82178 conditions, 38058 events. 14321/38058 cut-off events. For 73054/73211 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 461520 event pairs, 4887 based on Foata normal form. 32/34552 useless extension candidates. Maximal degree in co-relation 82117. Up to 7008 conditions per place. [2022-01-19 12:55:29,150 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 279 selfloop transitions, 93 changer transitions 0/574 dead transitions. [2022-01-19 12:55:29,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 574 transitions, 4556 flow [2022-01-19 12:55:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 12:55:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 12:55:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3740 transitions. [2022-01-19 12:55:29,153 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7324716020368194 [2022-01-19 12:55:29,153 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3740 transitions. [2022-01-19 12:55:29,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3740 transitions. [2022-01-19 12:55:29,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:29,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3740 transitions. [2022-01-19 12:55:29,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.6086956521739) internal successors, (3740), 23 states have internal predecessors, (3740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:29,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:29,160 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:29,160 INFO L186 Difference]: Start difference. First operand has 322 places, 313 transitions, 2146 flow. Second operand 23 states and 3740 transitions. [2022-01-19 12:55:29,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 574 transitions, 4556 flow [2022-01-19 12:55:29,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 574 transitions, 4415 flow, removed 2 selfloop flow, removed 9 redundant places. [2022-01-19 12:55:29,418 INFO L242 Difference]: Finished difference. Result has 347 places, 371 transitions, 3041 flow [2022-01-19 12:55:29,418 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3041, PETRI_PLACES=347, PETRI_TRANSITIONS=371} [2022-01-19 12:55:29,418 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 150 predicate places. [2022-01-19 12:55:29,418 INFO L470 AbstractCegarLoop]: Abstraction has has 347 places, 371 transitions, 3041 flow [2022-01-19 12:55:29,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:29,419 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:29,419 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:29,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 12:55:29,419 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:29,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1292242656, now seen corresponding path program 2 times [2022-01-19 12:55:29,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:29,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557016292] [2022-01-19 12:55:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:29,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:29,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:29,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557016292] [2022-01-19 12:55:29,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557016292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:29,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:29,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:55:29,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852152181] [2022-01-19 12:55:29,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:29,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:55:29,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:29,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:55:29,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:55:29,665 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:55:29,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 371 transitions, 3041 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:29,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:29,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:55:29,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:37,738 INFO L129 PetriNetUnfolder]: 18545/49308 cut-off events. [2022-01-19 12:55:37,738 INFO L130 PetriNetUnfolder]: For 134337/134608 co-relation queries the response was YES. [2022-01-19 12:55:38,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127265 conditions, 49308 events. 18545/49308 cut-off events. For 134337/134608 co-relation queries the response was YES. Maximal size of possible extension queue 1636. Compared 623029 event pairs, 4242 based on Foata normal form. 90/46575 useless extension candidates. Maximal degree in co-relation 127194. Up to 7676 conditions per place. [2022-01-19 12:55:38,346 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 352 selfloop transitions, 106 changer transitions 0/660 dead transitions. [2022-01-19 12:55:38,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 660 transitions, 6205 flow [2022-01-19 12:55:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-19 12:55:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-01-19 12:55:38,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4076 transitions. [2022-01-19 12:55:38,350 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7344144144144145 [2022-01-19 12:55:38,351 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4076 transitions. [2022-01-19 12:55:38,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4076 transitions. [2022-01-19 12:55:38,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:38,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4076 transitions. [2022-01-19 12:55:38,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 163.04) internal successors, (4076), 25 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:38,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:38,357 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:38,357 INFO L186 Difference]: Start difference. First operand has 347 places, 371 transitions, 3041 flow. Second operand 25 states and 4076 transitions. [2022-01-19 12:55:38,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 660 transitions, 6205 flow [2022-01-19 12:55:38,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 660 transitions, 6138 flow, removed 21 selfloop flow, removed 8 redundant places. [2022-01-19 12:55:38,651 INFO L242 Difference]: Finished difference. Result has 378 places, 424 transitions, 4043 flow [2022-01-19 12:55:38,651 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2998, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4043, PETRI_PLACES=378, PETRI_TRANSITIONS=424} [2022-01-19 12:55:38,652 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 181 predicate places. [2022-01-19 12:55:38,652 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 424 transitions, 4043 flow [2022-01-19 12:55:38,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:38,652 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:38,652 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:38,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 12:55:38,652 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:38,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1742920164, now seen corresponding path program 3 times [2022-01-19 12:55:38,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:38,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499870788] [2022-01-19 12:55:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:38,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:39,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:39,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499870788] [2022-01-19 12:55:39,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499870788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:39,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:39,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:55:39,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101241751] [2022-01-19 12:55:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:39,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:55:39,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:55:39,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:55:39,070 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:55:39,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 424 transitions, 4043 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:39,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:39,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:55:39,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:48,559 INFO L129 PetriNetUnfolder]: 20115/51515 cut-off events. [2022-01-19 12:55:48,559 INFO L130 PetriNetUnfolder]: For 238302/238655 co-relation queries the response was YES. [2022-01-19 12:55:49,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154569 conditions, 51515 events. 20115/51515 cut-off events. For 238302/238655 co-relation queries the response was YES. Maximal size of possible extension queue 1799. Compared 644292 event pairs, 7979 based on Foata normal form. 103/48034 useless extension candidates. Maximal degree in co-relation 154483. Up to 13399 conditions per place. [2022-01-19 12:55:49,303 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 317 selfloop transitions, 117 changer transitions 0/636 dead transitions. [2022-01-19 12:55:49,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 636 transitions, 6571 flow [2022-01-19 12:55:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 12:55:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 12:55:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3741 transitions. [2022-01-19 12:55:49,306 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7326674500587544 [2022-01-19 12:55:49,306 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3741 transitions. [2022-01-19 12:55:49,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3741 transitions. [2022-01-19 12:55:49,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:49,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3741 transitions. [2022-01-19 12:55:49,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.65217391304347) internal successors, (3741), 23 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:49,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:49,312 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:49,312 INFO L186 Difference]: Start difference. First operand has 378 places, 424 transitions, 4043 flow. Second operand 23 states and 3741 transitions. [2022-01-19 12:55:49,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 636 transitions, 6571 flow [2022-01-19 12:55:50,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 636 transitions, 6450 flow, removed 48 selfloop flow, removed 8 redundant places. [2022-01-19 12:55:50,017 INFO L242 Difference]: Finished difference. Result has 404 places, 454 transitions, 4774 flow [2022-01-19 12:55:50,018 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=3938, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4774, PETRI_PLACES=404, PETRI_TRANSITIONS=454} [2022-01-19 12:55:50,018 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 207 predicate places. [2022-01-19 12:55:50,018 INFO L470 AbstractCegarLoop]: Abstraction has has 404 places, 454 transitions, 4774 flow [2022-01-19 12:55:50,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:50,019 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:50,019 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:50,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 12:55:50,019 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:50,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:50,019 INFO L85 PathProgramCache]: Analyzing trace with hash 771038202, now seen corresponding path program 4 times [2022-01-19 12:55:50,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:50,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386259544] [2022-01-19 12:55:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:50,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:55:50,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:50,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386259544] [2022-01-19 12:55:50,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386259544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:55:50,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:55:50,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:55:50,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549660970] [2022-01-19 12:55:50,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:55:50,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:55:50,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:50,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:55:50,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:55:50,288 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:55:50,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 454 transitions, 4774 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:50,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:50,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:55:50,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:56:02,735 INFO L129 PetriNetUnfolder]: 23087/60332 cut-off events. [2022-01-19 12:56:02,735 INFO L130 PetriNetUnfolder]: For 374228/374629 co-relation queries the response was YES. [2022-01-19 12:56:03,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190975 conditions, 60332 events. 23087/60332 cut-off events. For 374228/374629 co-relation queries the response was YES. Maximal size of possible extension queue 2117. Compared 775614 event pairs, 8958 based on Foata normal form. 232/56661 useless extension candidates. Maximal degree in co-relation 190877. Up to 14953 conditions per place. [2022-01-19 12:56:03,933 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 285 selfloop transitions, 150 changer transitions 0/637 dead transitions. [2022-01-19 12:56:03,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 637 transitions, 7125 flow [2022-01-19 12:56:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 12:56:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 12:56:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3399 transitions. [2022-01-19 12:56:03,935 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7290862290862291 [2022-01-19 12:56:03,935 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3399 transitions. [2022-01-19 12:56:03,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3399 transitions. [2022-01-19 12:56:03,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:56:03,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3399 transitions. [2022-01-19 12:56:03,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.85714285714286) internal successors, (3399), 21 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 12:56:03,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:03,941 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:03,941 INFO L186 Difference]: Start difference. First operand has 404 places, 454 transitions, 4774 flow. Second operand 21 states and 3399 transitions. [2022-01-19 12:56:03,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 637 transitions, 7125 flow [2022-01-19 12:56:05,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 637 transitions, 6870 flow, removed 81 selfloop flow, removed 9 redundant places. [2022-01-19 12:56:05,239 INFO L242 Difference]: Finished difference. Result has 425 places, 480 transitions, 5477 flow [2022-01-19 12:56:05,239 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=4552, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5477, PETRI_PLACES=425, PETRI_TRANSITIONS=480} [2022-01-19 12:56:05,240 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 228 predicate places. [2022-01-19 12:56:05,240 INFO L470 AbstractCegarLoop]: Abstraction has has 425 places, 480 transitions, 5477 flow [2022-01-19 12:56:05,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:05,240 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:56:05,240 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:05,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 12:56:05,241 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:56:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:56:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash -762353848, now seen corresponding path program 5 times [2022-01-19 12:56:05,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:56:05,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763380287] [2022-01-19 12:56:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:56:05,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:56:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:56:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:56:05,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:56:05,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763380287] [2022-01-19 12:56:05,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763380287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:56:05,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:56:05,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:56:05,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816750810] [2022-01-19 12:56:05,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:56:05,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:56:05,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:56:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:56:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:56:05,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:56:05,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 480 transitions, 5477 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:05,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:56:05,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:56:05,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:56:19,109 INFO L129 PetriNetUnfolder]: 24100/63330 cut-off events. [2022-01-19 12:56:19,109 INFO L130 PetriNetUnfolder]: For 484606/485047 co-relation queries the response was YES. [2022-01-19 12:56:20,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209385 conditions, 63330 events. 24100/63330 cut-off events. For 484606/485047 co-relation queries the response was YES. Maximal size of possible extension queue 2226. Compared 822786 event pairs, 9879 based on Foata normal form. 166/59245 useless extension candidates. Maximal degree in co-relation 209277. Up to 17385 conditions per place. [2022-01-19 12:56:20,451 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 288 selfloop transitions, 169 changer transitions 0/659 dead transitions. [2022-01-19 12:56:20,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 659 transitions, 8205 flow [2022-01-19 12:56:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 12:56:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 12:56:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3395 transitions. [2022-01-19 12:56:20,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7282282282282282 [2022-01-19 12:56:20,453 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3395 transitions. [2022-01-19 12:56:20,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3395 transitions. [2022-01-19 12:56:20,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:56:20,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3395 transitions. [2022-01-19 12:56:20,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.66666666666666) internal successors, (3395), 21 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 12:56:20,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:20,459 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:20,459 INFO L186 Difference]: Start difference. First operand has 425 places, 480 transitions, 5477 flow. Second operand 21 states and 3395 transitions. [2022-01-19 12:56:20,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 659 transitions, 8205 flow [2022-01-19 12:56:22,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 659 transitions, 8060 flow, removed 60 selfloop flow, removed 8 redundant places. [2022-01-19 12:56:22,260 INFO L242 Difference]: Finished difference. Result has 446 places, 518 transitions, 6571 flow [2022-01-19 12:56:22,260 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=5344, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6571, PETRI_PLACES=446, PETRI_TRANSITIONS=518} [2022-01-19 12:56:22,261 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 249 predicate places. [2022-01-19 12:56:22,261 INFO L470 AbstractCegarLoop]: Abstraction has has 446 places, 518 transitions, 6571 flow [2022-01-19 12:56:22,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:22,261 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:56:22,262 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:22,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 12:56:22,262 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:56:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:56:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash -593902290, now seen corresponding path program 6 times [2022-01-19 12:56:22,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:56:22,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321354671] [2022-01-19 12:56:22,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:56:22,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:56:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:56:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:56:22,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:56:22,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321354671] [2022-01-19 12:56:22,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321354671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:56:22,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:56:22,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:56:22,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344342947] [2022-01-19 12:56:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:56:22,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:56:22,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:56:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:56:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:56:22,507 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:56:22,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 518 transitions, 6571 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:22,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:56:22,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:56:22,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:56:39,116 INFO L129 PetriNetUnfolder]: 26485/69734 cut-off events. [2022-01-19 12:56:39,116 INFO L130 PetriNetUnfolder]: For 589127/589807 co-relation queries the response was YES. [2022-01-19 12:56:40,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237716 conditions, 69734 events. 26485/69734 cut-off events. For 589127/589807 co-relation queries the response was YES. Maximal size of possible extension queue 2581. Compared 923013 event pairs, 11032 based on Foata normal form. 352/65700 useless extension candidates. Maximal degree in co-relation 237599. Up to 17603 conditions per place. [2022-01-19 12:56:40,812 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 371 selfloop transitions, 237 changer transitions 0/810 dead transitions. [2022-01-19 12:56:40,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 810 transitions, 11326 flow [2022-01-19 12:56:40,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 12:56:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 12:56:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3732 transitions. [2022-01-19 12:56:40,816 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7309048178613397 [2022-01-19 12:56:40,816 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3732 transitions. [2022-01-19 12:56:40,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3732 transitions. [2022-01-19 12:56:40,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:56:40,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3732 transitions. [2022-01-19 12:56:40,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.2608695652174) internal successors, (3732), 23 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:40,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:40,821 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:40,821 INFO L186 Difference]: Start difference. First operand has 446 places, 518 transitions, 6571 flow. Second operand 23 states and 3732 transitions. [2022-01-19 12:56:40,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 810 transitions, 11326 flow [2022-01-19 12:56:43,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 810 transitions, 11074 flow, removed 68 selfloop flow, removed 9 redundant places. [2022-01-19 12:56:43,269 INFO L242 Difference]: Finished difference. Result has 470 places, 586 transitions, 8718 flow [2022-01-19 12:56:43,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=6335, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8718, PETRI_PLACES=470, PETRI_TRANSITIONS=586} [2022-01-19 12:56:43,270 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 273 predicate places. [2022-01-19 12:56:43,270 INFO L470 AbstractCegarLoop]: Abstraction has has 470 places, 586 transitions, 8718 flow [2022-01-19 12:56:43,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:43,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:56:43,270 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:43,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 12:56:43,271 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:56:43,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:56:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash 749068364, now seen corresponding path program 7 times [2022-01-19 12:56:43,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:56:43,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726491674] [2022-01-19 12:56:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:56:43,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:56:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:56:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:56:43,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:56:43,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726491674] [2022-01-19 12:56:43,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726491674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:56:43,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:56:43,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:56:43,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129106127] [2022-01-19 12:56:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:56:43,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:56:43,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:56:43,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:56:43,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:56:43,499 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:56:43,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 586 transitions, 8718 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:43,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:56:43,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:56:43,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:57:01,235 INFO L129 PetriNetUnfolder]: 29440/77137 cut-off events. [2022-01-19 12:57:01,235 INFO L130 PetriNetUnfolder]: For 739925/740861 co-relation queries the response was YES. [2022-01-19 12:57:03,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268070 conditions, 77137 events. 29440/77137 cut-off events. For 739925/740861 co-relation queries the response was YES. Maximal size of possible extension queue 2863. Compared 1030977 event pairs, 12923 based on Foata normal form. 480/72597 useless extension candidates. Maximal degree in co-relation 267942. Up to 17915 conditions per place. [2022-01-19 12:57:03,467 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 325 selfloop transitions, 242 changer transitions 0/769 dead transitions. [2022-01-19 12:57:03,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 769 transitions, 11480 flow [2022-01-19 12:57:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 12:57:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 12:57:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3407 transitions. [2022-01-19 12:57:03,470 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7308022308022308 [2022-01-19 12:57:03,470 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3407 transitions. [2022-01-19 12:57:03,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3407 transitions. [2022-01-19 12:57:03,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:57:03,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3407 transitions. [2022-01-19 12:57:03,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 162.23809523809524) internal successors, (3407), 21 states have internal predecessors, (3407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:03,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:03,475 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:03,476 INFO L186 Difference]: Start difference. First operand has 470 places, 586 transitions, 8718 flow. Second operand 21 states and 3407 transitions. [2022-01-19 12:57:03,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 769 transitions, 11480 flow [2022-01-19 12:57:07,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 769 transitions, 10906 flow, removed 148 selfloop flow, removed 10 redundant places. [2022-01-19 12:57:07,508 INFO L242 Difference]: Finished difference. Result has 488 places, 613 transitions, 9367 flow [2022-01-19 12:57:07,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=8261, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9367, PETRI_PLACES=488, PETRI_TRANSITIONS=613} [2022-01-19 12:57:07,509 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 291 predicate places. [2022-01-19 12:57:07,509 INFO L470 AbstractCegarLoop]: Abstraction has has 488 places, 613 transitions, 9367 flow [2022-01-19 12:57:07,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:07,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:57:07,510 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:07,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 12:57:07,510 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:57:07,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:57:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash 668566888, now seen corresponding path program 8 times [2022-01-19 12:57:07,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:57:07,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323061897] [2022-01-19 12:57:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:57:07,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:57:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:57:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:57:07,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:57:07,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323061897] [2022-01-19 12:57:07,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323061897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:57:07,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:57:07,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:57:07,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934454690] [2022-01-19 12:57:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:57:07,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:57:07,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:57:07,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:57:07,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:57:07,756 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:57:07,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 613 transitions, 9367 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:07,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:57:07,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:57:07,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:57:26,822 INFO L129 PetriNetUnfolder]: 30394/79769 cut-off events. [2022-01-19 12:57:26,822 INFO L130 PetriNetUnfolder]: For 679362/680458 co-relation queries the response was YES. [2022-01-19 12:57:29,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269926 conditions, 79769 events. 30394/79769 cut-off events. For 679362/680458 co-relation queries the response was YES. Maximal size of possible extension queue 3007. Compared 1072814 event pairs, 13453 based on Foata normal form. 488/75009 useless extension candidates. Maximal degree in co-relation 269790. Up to 18971 conditions per place. [2022-01-19 12:57:29,301 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 326 selfloop transitions, 249 changer transitions 0/777 dead transitions. [2022-01-19 12:57:29,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 777 transitions, 11729 flow [2022-01-19 12:57:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 12:57:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 12:57:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3408 transitions. [2022-01-19 12:57:29,303 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.731016731016731 [2022-01-19 12:57:29,303 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3408 transitions. [2022-01-19 12:57:29,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3408 transitions. [2022-01-19 12:57:29,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:57:29,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3408 transitions. [2022-01-19 12:57:29,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 162.28571428571428) internal successors, (3408), 21 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:29,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:29,309 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:29,309 INFO L186 Difference]: Start difference. First operand has 488 places, 613 transitions, 9367 flow. Second operand 21 states and 3408 transitions. [2022-01-19 12:57:29,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 777 transitions, 11729 flow [2022-01-19 12:57:32,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 777 transitions, 11475 flow, removed 43 selfloop flow, removed 10 redundant places. [2022-01-19 12:57:32,929 INFO L242 Difference]: Finished difference. Result has 506 places, 629 transitions, 10023 flow [2022-01-19 12:57:32,930 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=9114, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10023, PETRI_PLACES=506, PETRI_TRANSITIONS=629} [2022-01-19 12:57:32,930 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 309 predicate places. [2022-01-19 12:57:32,930 INFO L470 AbstractCegarLoop]: Abstraction has has 506 places, 629 transitions, 10023 flow [2022-01-19 12:57:32,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:32,930 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:57:32,931 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:32,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 12:57:32,931 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:57:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:57:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 736610768, now seen corresponding path program 9 times [2022-01-19 12:57:32,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:57:32,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053198321] [2022-01-19 12:57:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:57:32,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:57:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:57:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:57:33,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:57:33,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053198321] [2022-01-19 12:57:33,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053198321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:57:33,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:57:33,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:57:33,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749869026] [2022-01-19 12:57:33,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:57:33,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:57:33,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:57:33,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:57:33,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:57:33,152 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:57:33,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 629 transitions, 10023 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:33,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:57:33,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:57:33,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:57:54,233 INFO L129 PetriNetUnfolder]: 30800/80840 cut-off events. [2022-01-19 12:57:54,233 INFO L130 PetriNetUnfolder]: For 720451/721545 co-relation queries the response was YES. [2022-01-19 12:57:56,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276923 conditions, 80840 events. 30800/80840 cut-off events. For 720451/721545 co-relation queries the response was YES. Maximal size of possible extension queue 3089. Compared 1090387 event pairs, 14689 based on Foata normal form. 480/75842 useless extension candidates. Maximal degree in co-relation 276779. Up to 21299 conditions per place. [2022-01-19 12:57:56,919 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 310 selfloop transitions, 252 changer transitions 0/764 dead transitions. [2022-01-19 12:57:56,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 764 transitions, 12478 flow [2022-01-19 12:57:56,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 12:57:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 12:57:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3066 transitions. [2022-01-19 12:57:56,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7268847795163584 [2022-01-19 12:57:56,921 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3066 transitions. [2022-01-19 12:57:56,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3066 transitions. [2022-01-19 12:57:56,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:57:56,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3066 transitions. [2022-01-19 12:57:56,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.3684210526316) internal successors, (3066), 19 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:56,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:56,926 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:56,926 INFO L186 Difference]: Start difference. First operand has 506 places, 629 transitions, 10023 flow. Second operand 19 states and 3066 transitions. [2022-01-19 12:57:56,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 764 transitions, 12478 flow [2022-01-19 12:58:00,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 764 transitions, 12118 flow, removed 61 selfloop flow, removed 10 redundant places. [2022-01-19 12:58:00,974 INFO L242 Difference]: Finished difference. Result has 519 places, 643 transitions, 10626 flow [2022-01-19 12:58:00,975 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=9681, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10626, PETRI_PLACES=519, PETRI_TRANSITIONS=643} [2022-01-19 12:58:00,975 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 322 predicate places. [2022-01-19 12:58:00,975 INFO L470 AbstractCegarLoop]: Abstraction has has 519 places, 643 transitions, 10626 flow [2022-01-19 12:58:00,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:00,976 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:58:00,976 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:00,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 12:58:00,976 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:58:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:58:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1671435892, now seen corresponding path program 10 times [2022-01-19 12:58:00,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:58:00,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622305405] [2022-01-19 12:58:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:58:00,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:58:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:58:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:58:01,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:58:01,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622305405] [2022-01-19 12:58:01,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622305405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:58:01,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:58:01,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:58:01,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805447239] [2022-01-19 12:58:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:58:01,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:58:01,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:58:01,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:58:01,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:58:01,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:58:01,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 643 transitions, 10626 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:01,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:58:01,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:58:01,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:58:21,554 INFO L129 PetriNetUnfolder]: 30376/79820 cut-off events. [2022-01-19 12:58:21,554 INFO L130 PetriNetUnfolder]: For 711210/712328 co-relation queries the response was YES. [2022-01-19 12:58:23,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271996 conditions, 79820 events. 30376/79820 cut-off events. For 711210/712328 co-relation queries the response was YES. Maximal size of possible extension queue 3039. Compared 1075114 event pairs, 14143 based on Foata normal form. 568/75050 useless extension candidates. Maximal degree in co-relation 271847. Up to 20083 conditions per place. [2022-01-19 12:58:24,184 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 312 selfloop transitions, 244 changer transitions 0/758 dead transitions. [2022-01-19 12:58:24,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 758 transitions, 12330 flow [2022-01-19 12:58:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 12:58:24,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 12:58:24,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3070 transitions. [2022-01-19 12:58:24,187 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7278330962541489 [2022-01-19 12:58:24,187 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3070 transitions. [2022-01-19 12:58:24,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3070 transitions. [2022-01-19 12:58:24,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:58:24,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3070 transitions. [2022-01-19 12:58:24,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.57894736842104) internal successors, (3070), 19 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:24,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:24,192 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:24,192 INFO L186 Difference]: Start difference. First operand has 519 places, 643 transitions, 10626 flow. Second operand 19 states and 3070 transitions. [2022-01-19 12:58:24,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 758 transitions, 12330 flow [2022-01-19 12:58:28,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 758 transitions, 11824 flow, removed 24 selfloop flow, removed 13 redundant places. [2022-01-19 12:58:28,290 INFO L242 Difference]: Finished difference. Result has 528 places, 634 transitions, 10363 flow [2022-01-19 12:58:28,291 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=9831, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10363, PETRI_PLACES=528, PETRI_TRANSITIONS=634} [2022-01-19 12:58:28,291 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 331 predicate places. [2022-01-19 12:58:28,291 INFO L470 AbstractCegarLoop]: Abstraction has has 528 places, 634 transitions, 10363 flow [2022-01-19 12:58:28,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:28,292 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:58:28,292 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:28,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 12:58:28,292 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:58:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:58:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1486018528, now seen corresponding path program 11 times [2022-01-19 12:58:28,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:58:28,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105445911] [2022-01-19 12:58:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:58:28,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:58:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:58:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:58:28,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:58:28,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105445911] [2022-01-19 12:58:28,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105445911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:58:28,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:58:28,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:58:28,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120175285] [2022-01-19 12:58:28,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:58:28,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:58:28,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:58:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:58:28,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:58:28,542 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:58:28,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 634 transitions, 10363 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:28,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:58:28,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:58:28,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:58:49,559 INFO L129 PetriNetUnfolder]: 31265/82593 cut-off events. [2022-01-19 12:58:49,560 INFO L130 PetriNetUnfolder]: For 730367/731480 co-relation queries the response was YES. [2022-01-19 12:58:52,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281093 conditions, 82593 events. 31265/82593 cut-off events. For 730367/731480 co-relation queries the response was YES. Maximal size of possible extension queue 3082. Compared 1123067 event pairs, 12747 based on Foata normal form. 438/77260 useless extension candidates. Maximal degree in co-relation 280940. Up to 20925 conditions per place. [2022-01-19 12:58:52,594 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 301 selfloop transitions, 268 changer transitions 0/771 dead transitions. [2022-01-19 12:58:52,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 771 transitions, 12866 flow [2022-01-19 12:58:52,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 12:58:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 12:58:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3067 transitions. [2022-01-19 12:58:52,606 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.727121858700806 [2022-01-19 12:58:52,606 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3067 transitions. [2022-01-19 12:58:52,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3067 transitions. [2022-01-19 12:58:52,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:58:52,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3067 transitions. [2022-01-19 12:58:52,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.42105263157896) internal successors, (3067), 19 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:52,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:52,614 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:52,614 INFO L186 Difference]: Start difference. First operand has 528 places, 634 transitions, 10363 flow. Second operand 19 states and 3067 transitions. [2022-01-19 12:58:52,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 771 transitions, 12866 flow [2022-01-19 12:58:57,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 771 transitions, 12496 flow, removed 1 selfloop flow, removed 13 redundant places. [2022-01-19 12:58:57,410 INFO L242 Difference]: Finished difference. Result has 538 places, 656 transitions, 11174 flow [2022-01-19 12:58:57,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10017, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11174, PETRI_PLACES=538, PETRI_TRANSITIONS=656} [2022-01-19 12:58:57,411 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 341 predicate places. [2022-01-19 12:58:57,411 INFO L470 AbstractCegarLoop]: Abstraction has has 538 places, 656 transitions, 11174 flow [2022-01-19 12:58:57,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:57,411 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:58:57,411 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:57,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 12:58:57,412 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:58:57,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:58:57,413 INFO L85 PathProgramCache]: Analyzing trace with hash -331014816, now seen corresponding path program 12 times [2022-01-19 12:58:57,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:58:57,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786054917] [2022-01-19 12:58:57,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:58:57,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:58:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:58:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:58:57,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:58:57,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786054917] [2022-01-19 12:58:57,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786054917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:58:57,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:58:57,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:58:57,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313484465] [2022-01-19 12:58:57,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:58:57,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:58:57,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:58:57,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:58:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:58:57,692 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:58:57,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 656 transitions, 11174 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:57,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:58:57,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:58:57,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:19,290 INFO L129 PetriNetUnfolder]: 31217/82512 cut-off events. [2022-01-19 12:59:19,290 INFO L130 PetriNetUnfolder]: For 754157/755338 co-relation queries the response was YES. [2022-01-19 12:59:22,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282970 conditions, 82512 events. 31217/82512 cut-off events. For 754157/755338 co-relation queries the response was YES. Maximal size of possible extension queue 3082. Compared 1122613 event pairs, 12749 based on Foata normal form. 430/77167 useless extension candidates. Maximal degree in co-relation 282812. Up to 20925 conditions per place. [2022-01-19 12:59:22,288 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 307 selfloop transitions, 266 changer transitions 0/775 dead transitions. [2022-01-19 12:59:22,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 775 transitions, 13152 flow [2022-01-19 12:59:22,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 12:59:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 12:59:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3072 transitions. [2022-01-19 12:59:22,290 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7283072546230441 [2022-01-19 12:59:22,291 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3072 transitions. [2022-01-19 12:59:22,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3072 transitions. [2022-01-19 12:59:22,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:22,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3072 transitions. [2022-01-19 12:59:22,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.68421052631578) internal successors, (3072), 19 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:22,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:22,295 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:22,295 INFO L186 Difference]: Start difference. First operand has 538 places, 656 transitions, 11174 flow. Second operand 19 states and 3072 transitions. [2022-01-19 12:59:22,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 775 transitions, 13152 flow [2022-01-19 12:59:26,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 775 transitions, 12745 flow, removed 10 selfloop flow, removed 12 redundant places. [2022-01-19 12:59:26,580 INFO L242 Difference]: Finished difference. Result has 549 places, 658 transitions, 11401 flow [2022-01-19 12:59:26,580 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10768, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11401, PETRI_PLACES=549, PETRI_TRANSITIONS=658} [2022-01-19 12:59:26,581 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 352 predicate places. [2022-01-19 12:59:26,581 INFO L470 AbstractCegarLoop]: Abstraction has has 549 places, 658 transitions, 11401 flow [2022-01-19 12:59:26,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:26,581 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:26,581 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:26,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 12:59:26,581 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:59:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:26,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1119946728, now seen corresponding path program 13 times [2022-01-19 12:59:26,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:26,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508880812] [2022-01-19 12:59:26,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:26,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:59:26,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:26,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508880812] [2022-01-19 12:59:26,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508880812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:26,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:26,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:59:26,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862399416] [2022-01-19 12:59:26,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:26,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:59:26,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:26,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:59:26,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:59:26,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:59:26,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 658 transitions, 11401 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:26,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:26,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:59:26,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:50,309 INFO L129 PetriNetUnfolder]: 31972/84408 cut-off events. [2022-01-19 12:59:50,309 INFO L130 PetriNetUnfolder]: For 794773/795891 co-relation queries the response was YES. [2022-01-19 12:59:53,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288964 conditions, 84408 events. 31972/84408 cut-off events. For 794773/795891 co-relation queries the response was YES. Maximal size of possible extension queue 3223. Compared 1148720 event pairs, 14901 based on Foata normal form. 512/79180 useless extension candidates. Maximal degree in co-relation 288801. Up to 21139 conditions per place. [2022-01-19 12:59:54,112 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 307 selfloop transitions, 263 changer transitions 0/772 dead transitions. [2022-01-19 12:59:54,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 772 transitions, 13117 flow [2022-01-19 12:59:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 12:59:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 12:59:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3071 transitions. [2022-01-19 12:59:54,114 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2022-01-19 12:59:54,114 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3071 transitions. [2022-01-19 12:59:54,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3071 transitions. [2022-01-19 12:59:54,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:54,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3071 transitions. [2022-01-19 12:59:54,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.6315789473684) internal successors, (3071), 19 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,118 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,118 INFO L186 Difference]: Start difference. First operand has 549 places, 658 transitions, 11401 flow. Second operand 19 states and 3071 transitions. [2022-01-19 12:59:54,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 772 transitions, 13117 flow [2022-01-19 12:59:58,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 772 transitions, 12703 flow, removed 12 selfloop flow, removed 12 redundant places. [2022-01-19 12:59:58,511 INFO L242 Difference]: Finished difference. Result has 559 places, 654 transitions, 11387 flow [2022-01-19 12:59:58,512 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10735, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11387, PETRI_PLACES=559, PETRI_TRANSITIONS=654} [2022-01-19 12:59:58,512 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 362 predicate places. [2022-01-19 12:59:58,512 INFO L470 AbstractCegarLoop]: Abstraction has has 559 places, 654 transitions, 11387 flow [2022-01-19 12:59:58,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,512 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:58,512 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:58,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 12:59:58,513 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:59:58,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:58,513 INFO L85 PathProgramCache]: Analyzing trace with hash -236161478, now seen corresponding path program 14 times [2022-01-19 12:59:58,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:58,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812380457] [2022-01-19 12:59:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:58,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 12:59:58,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:58,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812380457] [2022-01-19 12:59:58,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812380457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:58,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:58,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 12:59:58,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405300168] [2022-01-19 12:59:58,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:58,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 12:59:58,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:58,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 12:59:58,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 12:59:58,790 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 12:59:58,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 654 transitions, 11387 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:58,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 12:59:58,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:21,006 INFO L129 PetriNetUnfolder]: 31623/83674 cut-off events. [2022-01-19 13:00:21,006 INFO L130 PetriNetUnfolder]: For 806814/807937 co-relation queries the response was YES. [2022-01-19 13:00:23,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286116 conditions, 83674 events. 31623/83674 cut-off events. For 806814/807937 co-relation queries the response was YES. Maximal size of possible extension queue 3177. Compared 1141318 event pairs, 12635 based on Foata normal form. 478/78297 useless extension candidates. Maximal degree in co-relation 285949. Up to 20765 conditions per place. [2022-01-19 13:00:24,156 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 311 selfloop transitions, 252 changer transitions 0/765 dead transitions. [2022-01-19 13:00:24,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 765 transitions, 12945 flow [2022-01-19 13:00:24,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:00:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:00:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3076 transitions. [2022-01-19 13:00:24,158 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7292555713608345 [2022-01-19 13:00:24,158 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3076 transitions. [2022-01-19 13:00:24,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3076 transitions. [2022-01-19 13:00:24,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:24,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3076 transitions. [2022-01-19 13:00:24,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.89473684210526) internal successors, (3076), 19 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:24,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:24,162 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:24,163 INFO L186 Difference]: Start difference. First operand has 559 places, 654 transitions, 11387 flow. Second operand 19 states and 3076 transitions. [2022-01-19 13:00:24,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 765 transitions, 12945 flow [2022-01-19 13:00:28,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 765 transitions, 12512 flow, removed 33 selfloop flow, removed 13 redundant places. [2022-01-19 13:00:28,625 INFO L242 Difference]: Finished difference. Result has 568 places, 645 transitions, 11194 flow [2022-01-19 13:00:28,626 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10647, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11194, PETRI_PLACES=568, PETRI_TRANSITIONS=645} [2022-01-19 13:00:28,626 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 371 predicate places. [2022-01-19 13:00:28,626 INFO L470 AbstractCegarLoop]: Abstraction has has 568 places, 645 transitions, 11194 flow [2022-01-19 13:00:28,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:28,626 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:28,627 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:00:28,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 13:00:28,627 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:00:28,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 303212124, now seen corresponding path program 15 times [2022-01-19 13:00:28,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:28,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251931271] [2022-01-19 13:00:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:28,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:00:28,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:28,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251931271] [2022-01-19 13:00:28,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251931271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:28,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:28,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:00:28,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611285749] [2022-01-19 13:00:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:28,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:00:28,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:00:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:00:28,851 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:00:28,852 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 645 transitions, 11194 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:28,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:28,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:00:28,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:55,473 INFO L129 PetriNetUnfolder]: 32952/86896 cut-off events. [2022-01-19 13:00:55,473 INFO L130 PetriNetUnfolder]: For 857870/859104 co-relation queries the response was YES. [2022-01-19 13:00:58,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300228 conditions, 86896 events. 32952/86896 cut-off events. For 857870/859104 co-relation queries the response was YES. Maximal size of possible extension queue 3306. Compared 1187720 event pairs, 15205 based on Foata normal form. 404/81443 useless extension candidates. Maximal degree in co-relation 300057. Up to 21827 conditions per place. [2022-01-19 13:00:59,186 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 344 selfloop transitions, 298 changer transitions 0/844 dead transitions. [2022-01-19 13:00:59,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 844 transitions, 14850 flow [2022-01-19 13:00:59,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:00:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:00:59,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3397 transitions. [2022-01-19 13:00:59,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7286572286572287 [2022-01-19 13:00:59,189 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3397 transitions. [2022-01-19 13:00:59,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3397 transitions. [2022-01-19 13:00:59,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:59,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3397 transitions. [2022-01-19 13:00:59,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.76190476190476) internal successors, (3397), 21 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 13:00:59,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:59,193 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:59,193 INFO L186 Difference]: Start difference. First operand has 568 places, 645 transitions, 11194 flow. Second operand 21 states and 3397 transitions. [2022-01-19 13:00:59,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 844 transitions, 14850 flow [2022-01-19 13:01:03,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 844 transitions, 14438 flow, removed 4 selfloop flow, removed 13 redundant places. [2022-01-19 13:01:03,680 INFO L242 Difference]: Finished difference. Result has 583 places, 685 transitions, 12697 flow [2022-01-19 13:01:03,680 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10825, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12697, PETRI_PLACES=583, PETRI_TRANSITIONS=685} [2022-01-19 13:01:03,680 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 386 predicate places. [2022-01-19 13:01:03,681 INFO L470 AbstractCegarLoop]: Abstraction has has 583 places, 685 transitions, 12697 flow [2022-01-19 13:01:03,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:03,681 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:03,681 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:03,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-19 13:01:03,681 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:01:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash -836549952, now seen corresponding path program 16 times [2022-01-19 13:01:03,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:03,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867355248] [2022-01-19 13:01:03,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:03,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:01:03,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:03,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867355248] [2022-01-19 13:01:03,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867355248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:03,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:03,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:01:03,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543614276] [2022-01-19 13:01:03,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:03,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:01:03,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:03,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:01:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:01:03,947 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:01:03,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 685 transitions, 12697 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:03,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:03,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:01:03,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:28,393 INFO L129 PetriNetUnfolder]: 33628/88833 cut-off events. [2022-01-19 13:01:28,393 INFO L130 PetriNetUnfolder]: For 924322/925680 co-relation queries the response was YES. [2022-01-19 13:01:31,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312049 conditions, 88833 events. 33628/88833 cut-off events. For 924322/925680 co-relation queries the response was YES. Maximal size of possible extension queue 3377. Compared 1218805 event pairs, 15706 based on Foata normal form. 396/83177 useless extension candidates. Maximal degree in co-relation 311870. Up to 21827 conditions per place. [2022-01-19 13:01:32,274 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 349 selfloop transitions, 298 changer transitions 0/849 dead transitions. [2022-01-19 13:01:32,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 849 transitions, 15615 flow [2022-01-19 13:01:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:01:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:01:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3396 transitions. [2022-01-19 13:01:32,276 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7284427284427284 [2022-01-19 13:01:32,276 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3396 transitions. [2022-01-19 13:01:32,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3396 transitions. [2022-01-19 13:01:32,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:32,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3396 transitions. [2022-01-19 13:01:32,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.71428571428572) internal successors, (3396), 21 states have internal predecessors, (3396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:32,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:32,280 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:32,280 INFO L186 Difference]: Start difference. First operand has 583 places, 685 transitions, 12697 flow. Second operand 21 states and 3396 transitions. [2022-01-19 13:01:32,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 603 places, 849 transitions, 15615 flow [2022-01-19 13:01:37,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 849 transitions, 15342 flow, removed 59 selfloop flow, removed 10 redundant places. [2022-01-19 13:01:37,193 INFO L242 Difference]: Finished difference. Result has 601 places, 705 transitions, 13709 flow [2022-01-19 13:01:37,193 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=12425, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13709, PETRI_PLACES=601, PETRI_TRANSITIONS=705} [2022-01-19 13:01:37,194 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 404 predicate places. [2022-01-19 13:01:37,194 INFO L470 AbstractCegarLoop]: Abstraction has has 601 places, 705 transitions, 13709 flow [2022-01-19 13:01:37,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:37,195 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:37,195 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:37,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 13:01:37,195 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:01:37,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1651227036, now seen corresponding path program 17 times [2022-01-19 13:01:37,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:37,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764420471] [2022-01-19 13:01:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:37,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:01:37,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:37,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764420471] [2022-01-19 13:01:37,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764420471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:37,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:37,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:01:37,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563589760] [2022-01-19 13:01:37,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:37,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:01:37,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:01:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:01:37,445 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:01:37,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 705 transitions, 13709 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:37,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:37,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:01:37,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:04,957 INFO L129 PetriNetUnfolder]: 33611/88917 cut-off events. [2022-01-19 13:02:04,958 INFO L130 PetriNetUnfolder]: For 977850/979279 co-relation queries the response was YES. [2022-01-19 13:02:08,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315276 conditions, 88917 events. 33611/88917 cut-off events. For 977850/979279 co-relation queries the response was YES. Maximal size of possible extension queue 3369. Compared 1223587 event pairs, 13546 based on Foata normal form. 506/83239 useless extension candidates. Maximal degree in co-relation 315089. Up to 21717 conditions per place. [2022-01-19 13:02:09,238 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 335 selfloop transitions, 302 changer transitions 0/839 dead transitions. [2022-01-19 13:02:09,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 839 transitions, 16000 flow [2022-01-19 13:02:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:02:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:02:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3064 transitions. [2022-01-19 13:02:09,240 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7264106211474632 [2022-01-19 13:02:09,240 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3064 transitions. [2022-01-19 13:02:09,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3064 transitions. [2022-01-19 13:02:09,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:09,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3064 transitions. [2022-01-19 13:02:09,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.26315789473685) internal successors, (3064), 19 states have internal predecessors, (3064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:09,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:09,244 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:09,244 INFO L186 Difference]: Start difference. First operand has 601 places, 705 transitions, 13709 flow. Second operand 19 states and 3064 transitions. [2022-01-19 13:02:09,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 839 transitions, 16000 flow [2022-01-19 13:02:14,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 839 transitions, 15620 flow, removed 89 selfloop flow, removed 10 redundant places. [2022-01-19 13:02:14,553 INFO L242 Difference]: Finished difference. Result has 614 places, 707 transitions, 14022 flow [2022-01-19 13:02:14,554 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=13329, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14022, PETRI_PLACES=614, PETRI_TRANSITIONS=707} [2022-01-19 13:02:14,554 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 417 predicate places. [2022-01-19 13:02:14,554 INFO L470 AbstractCegarLoop]: Abstraction has has 614 places, 707 transitions, 14022 flow [2022-01-19 13:02:14,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:14,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:14,555 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:02:14,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 13:02:14,555 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:02:14,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:14,555 INFO L85 PathProgramCache]: Analyzing trace with hash -459195216, now seen corresponding path program 18 times [2022-01-19 13:02:14,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:14,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515725313] [2022-01-19 13:02:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:14,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:02:14,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:14,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515725313] [2022-01-19 13:02:14,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515725313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:14,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:14,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:02:14,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118173878] [2022-01-19 13:02:14,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:14,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:02:14,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:02:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:02:14,784 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:02:14,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 707 transitions, 14022 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:14,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:14,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:02:14,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:42,137 INFO L129 PetriNetUnfolder]: 34349/90501 cut-off events. [2022-01-19 13:02:42,137 INFO L130 PetriNetUnfolder]: For 1019761/1021191 co-relation queries the response was YES. [2022-01-19 13:02:46,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320319 conditions, 90501 events. 34349/90501 cut-off events. For 1019761/1021191 co-relation queries the response was YES. Maximal size of possible extension queue 3506. Compared 1243891 event pairs, 15892 based on Foata normal form. 572/84950 useless extension candidates. Maximal degree in co-relation 320127. Up to 21931 conditions per place. [2022-01-19 13:02:46,706 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 341 selfloop transitions, 295 changer transitions 0/838 dead transitions. [2022-01-19 13:02:46,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 838 transitions, 16024 flow [2022-01-19 13:02:46,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:02:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:02:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3068 transitions. [2022-01-19 13:02:46,708 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7273589378852536 [2022-01-19 13:02:46,708 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3068 transitions. [2022-01-19 13:02:46,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3068 transitions. [2022-01-19 13:02:46,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:46,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3068 transitions. [2022-01-19 13:02:46,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.47368421052633) internal successors, (3068), 19 states have internal predecessors, (3068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:46,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:46,712 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:46,712 INFO L186 Difference]: Start difference. First operand has 614 places, 707 transitions, 14022 flow. Second operand 19 states and 3068 transitions. [2022-01-19 13:02:46,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 838 transitions, 16024 flow [2022-01-19 13:02:52,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 838 transitions, 15640 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-01-19 13:02:52,191 INFO L242 Difference]: Finished difference. Result has 624 places, 703 transitions, 14079 flow [2022-01-19 13:02:52,192 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=13355, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14079, PETRI_PLACES=624, PETRI_TRANSITIONS=703} [2022-01-19 13:02:52,192 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 427 predicate places. [2022-01-19 13:02:52,192 INFO L470 AbstractCegarLoop]: Abstraction has has 624 places, 703 transitions, 14079 flow [2022-01-19 13:02:52,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:52,192 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:52,193 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:02:52,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 13:02:52,193 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:02:52,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1275461516, now seen corresponding path program 19 times [2022-01-19 13:02:52,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:52,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119906083] [2022-01-19 13:02:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:52,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:02:52,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:52,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119906083] [2022-01-19 13:02:52,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119906083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:52,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:52,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:02:52,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208420607] [2022-01-19 13:02:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:52,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:02:52,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:52,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:02:52,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:02:52,428 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:02:52,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 703 transitions, 14079 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:52,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:52,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:02:52,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:03:21,386 INFO L129 PetriNetUnfolder]: 35214/92909 cut-off events. [2022-01-19 13:03:21,386 INFO L130 PetriNetUnfolder]: For 1072094/1073496 co-relation queries the response was YES. [2022-01-19 13:03:25,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331962 conditions, 92909 events. 35214/92909 cut-off events. For 1072094/1073496 co-relation queries the response was YES. Maximal size of possible extension queue 3566. Compared 1282901 event pairs, 16610 based on Foata normal form. 452/86955 useless extension candidates. Maximal degree in co-relation 331766. Up to 22883 conditions per place. [2022-01-19 13:03:26,067 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 332 selfloop transitions, 310 changer transitions 0/844 dead transitions. [2022-01-19 13:03:26,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 844 transitions, 16868 flow [2022-01-19 13:03:26,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:03:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:03:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3063 transitions. [2022-01-19 13:03:26,069 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7261735419630156 [2022-01-19 13:03:26,069 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3063 transitions. [2022-01-19 13:03:26,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3063 transitions. [2022-01-19 13:03:26,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:03:26,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3063 transitions. [2022-01-19 13:03:26,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.21052631578948) internal successors, (3063), 19 states have internal predecessors, (3063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:26,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:26,073 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:26,074 INFO L186 Difference]: Start difference. First operand has 624 places, 703 transitions, 14079 flow. Second operand 19 states and 3063 transitions. [2022-01-19 13:03:26,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 844 transitions, 16868 flow [2022-01-19 13:03:31,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 844 transitions, 16241 flow, removed 18 selfloop flow, removed 13 redundant places. [2022-01-19 13:03:31,707 INFO L242 Difference]: Finished difference. Result has 634 places, 725 transitions, 14835 flow [2022-01-19 13:03:31,707 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=13482, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=288, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14835, PETRI_PLACES=634, PETRI_TRANSITIONS=725} [2022-01-19 13:03:31,708 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 437 predicate places. [2022-01-19 13:03:31,708 INFO L470 AbstractCegarLoop]: Abstraction has has 634 places, 725 transitions, 14835 flow [2022-01-19 13:03:31,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:31,708 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:03:31,708 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:31,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 13:03:31,709 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:03:31,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:03:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash -977680164, now seen corresponding path program 20 times [2022-01-19 13:03:31,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:03:31,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541603575] [2022-01-19 13:03:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:03:31,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:03:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:03:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:03:31,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:03:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541603575] [2022-01-19 13:03:31,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541603575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:03:31,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:03:31,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:03:31,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80080010] [2022-01-19 13:03:31,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:03:31,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:03:31,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:03:31,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:03:31,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:03:31,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:03:31,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 725 transitions, 14835 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:31,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:03:31,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:03:31,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:04:00,376 INFO L129 PetriNetUnfolder]: 35150/92879 cut-off events. [2022-01-19 13:04:00,376 INFO L130 PetriNetUnfolder]: For 1076656/1078188 co-relation queries the response was YES. [2022-01-19 13:04:04,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331523 conditions, 92879 events. 35150/92879 cut-off events. For 1076656/1078188 co-relation queries the response was YES. Maximal size of possible extension queue 3566. Compared 1282488 event pairs, 16502 based on Foata normal form. 444/86917 useless extension candidates. Maximal degree in co-relation 331322. Up to 22883 conditions per place. [2022-01-19 13:04:05,322 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 339 selfloop transitions, 308 changer transitions 0/849 dead transitions. [2022-01-19 13:04:05,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 849 transitions, 17015 flow [2022-01-19 13:04:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:04:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:04:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3068 transitions. [2022-01-19 13:04:05,324 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7273589378852536 [2022-01-19 13:04:05,324 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3068 transitions. [2022-01-19 13:04:05,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3068 transitions. [2022-01-19 13:04:05,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:04:05,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3068 transitions. [2022-01-19 13:04:05,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.47368421052633) internal successors, (3068), 19 states have internal predecessors, (3068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:05,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:05,328 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:05,328 INFO L186 Difference]: Start difference. First operand has 634 places, 725 transitions, 14835 flow. Second operand 19 states and 3068 transitions. [2022-01-19 13:04:05,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 849 transitions, 17015 flow [2022-01-19 13:04:11,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 849 transitions, 16649 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-01-19 13:04:11,870 INFO L242 Difference]: Finished difference. Result has 646 places, 727 transitions, 15187 flow [2022-01-19 13:04:11,885 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=14469, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15187, PETRI_PLACES=646, PETRI_TRANSITIONS=727} [2022-01-19 13:04:11,885 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 449 predicate places. [2022-01-19 13:04:11,885 INFO L470 AbstractCegarLoop]: Abstraction has has 646 places, 727 transitions, 15187 flow [2022-01-19 13:04:11,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:11,886 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:04:11,886 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:11,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 13:04:11,886 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:04:11,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:04:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash 548801258, now seen corresponding path program 21 times [2022-01-19 13:04:11,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:04:11,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893599556] [2022-01-19 13:04:11,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:04:11,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:04:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:04:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:04:12,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:04:12,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893599556] [2022-01-19 13:04:12,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893599556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:04:12,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:04:12,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:04:12,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624997154] [2022-01-19 13:04:12,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:04:12,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:04:12,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:04:12,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:04:12,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:04:12,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:04:12,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 727 transitions, 15187 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:12,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:04:12,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:04:12,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:04:41,708 INFO L129 PetriNetUnfolder]: 35955/94912 cut-off events. [2022-01-19 13:04:41,708 INFO L130 PetriNetUnfolder]: For 1138539/1139981 co-relation queries the response was YES. [2022-01-19 13:04:46,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338830 conditions, 94912 events. 35955/94912 cut-off events. For 1138539/1139981 co-relation queries the response was YES. Maximal size of possible extension queue 3688. Compared 1314523 event pairs, 16668 based on Foata normal form. 532/88934 useless extension candidates. Maximal degree in co-relation 338624. Up to 22987 conditions per place. [2022-01-19 13:04:46,956 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 338 selfloop transitions, 304 changer transitions 0/844 dead transitions. [2022-01-19 13:04:46,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 844 transitions, 17018 flow [2022-01-19 13:04:46,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:04:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:04:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3067 transitions. [2022-01-19 13:04:46,958 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.727121858700806 [2022-01-19 13:04:46,958 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3067 transitions. [2022-01-19 13:04:46,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3067 transitions. [2022-01-19 13:04:46,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:04:46,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3067 transitions. [2022-01-19 13:04:46,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.42105263157896) internal successors, (3067), 19 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:46,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:46,962 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:46,962 INFO L186 Difference]: Start difference. First operand has 646 places, 727 transitions, 15187 flow. Second operand 19 states and 3067 transitions. [2022-01-19 13:04:46,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 844 transitions, 17018 flow [2022-01-19 13:04:53,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 844 transitions, 16637 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-01-19 13:04:53,231 INFO L242 Difference]: Finished difference. Result has 656 places, 723 transitions, 15253 flow [2022-01-19 13:04:53,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=14508, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15253, PETRI_PLACES=656, PETRI_TRANSITIONS=723} [2022-01-19 13:04:53,232 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 459 predicate places. [2022-01-19 13:04:53,232 INFO L470 AbstractCegarLoop]: Abstraction has has 656 places, 723 transitions, 15253 flow [2022-01-19 13:04:53,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:53,232 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:04:53,233 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:53,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 13:04:53,233 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:04:53,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:04:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash 367770832, now seen corresponding path program 22 times [2022-01-19 13:04:53,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:04:53,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45665722] [2022-01-19 13:04:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:04:53,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:04:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:04:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:04:53,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:04:53,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45665722] [2022-01-19 13:04:53,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45665722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:04:53,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:04:53,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:04:53,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23328573] [2022-01-19 13:04:53,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:04:53,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:04:53,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:04:53,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:04:53,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:04:53,474 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:04:53,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 723 transitions, 15253 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:53,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:04:53,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:04:53,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:05:22,384 INFO L129 PetriNetUnfolder]: 35505/93744 cut-off events. [2022-01-19 13:05:22,384 INFO L130 PetriNetUnfolder]: For 1141561/1142920 co-relation queries the response was YES. [2022-01-19 13:05:27,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334508 conditions, 93744 events. 35505/93744 cut-off events. For 1141561/1142920 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 1297258 event pairs, 14102 based on Foata normal form. 434/87535 useless extension candidates. Maximal degree in co-relation 334298. Up to 22589 conditions per place. [2022-01-19 13:05:27,664 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 343 selfloop transitions, 288 changer transitions 0/833 dead transitions. [2022-01-19 13:05:27,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 833 transitions, 16707 flow [2022-01-19 13:05:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:05:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:05:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3072 transitions. [2022-01-19 13:05:27,666 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7283072546230441 [2022-01-19 13:05:27,666 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3072 transitions. [2022-01-19 13:05:27,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3072 transitions. [2022-01-19 13:05:27,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:05:27,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3072 transitions. [2022-01-19 13:05:27,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.68421052631578) internal successors, (3072), 19 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:27,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:27,670 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:27,670 INFO L186 Difference]: Start difference. First operand has 656 places, 723 transitions, 15253 flow. Second operand 19 states and 3072 transitions. [2022-01-19 13:05:27,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 833 transitions, 16707 flow [2022-01-19 13:05:34,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 833 transitions, 16166 flow, removed 36 selfloop flow, removed 13 redundant places. [2022-01-19 13:05:34,049 INFO L242 Difference]: Finished difference. Result has 665 places, 709 transitions, 14762 flow [2022-01-19 13:05:34,050 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=14137, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=287, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14762, PETRI_PLACES=665, PETRI_TRANSITIONS=709} [2022-01-19 13:05:34,050 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 468 predicate places. [2022-01-19 13:05:34,050 INFO L470 AbstractCegarLoop]: Abstraction has has 665 places, 709 transitions, 14762 flow [2022-01-19 13:05:34,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:34,051 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:05:34,051 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:34,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-19 13:05:34,051 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:05:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:05:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1361796896, now seen corresponding path program 23 times [2022-01-19 13:05:34,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:05:34,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365233264] [2022-01-19 13:05:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:05:34,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:05:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:05:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 13:05:34,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:05:34,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365233264] [2022-01-19 13:05:34,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365233264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:05:34,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:05:34,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 13:05:34,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644775679] [2022-01-19 13:05:34,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:05:34,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 13:05:34,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:05:34,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 13:05:34,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-19 13:05:34,356 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 13:05:34,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 665 places, 709 transitions, 14762 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:34,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:05:34,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 13:05:34,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:06:02,814 INFO L129 PetriNetUnfolder]: 35637/91165 cut-off events. [2022-01-19 13:06:02,814 INFO L130 PetriNetUnfolder]: For 1141537/1142717 co-relation queries the response was YES. Received shutdown request... [2022-01-19 13:06:07,367 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 13:06:07,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331626 conditions, 91165 events. 35637/91165 cut-off events. For 1141537/1142717 co-relation queries the response was YES. Maximal size of possible extension queue 3657. Compared 1236253 event pairs, 16707 based on Foata normal form. 310/84946 useless extension candidates. Maximal degree in co-relation 331412. Up to 23517 conditions per place. [2022-01-19 13:06:07,929 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 426 selfloop transitions, 223 changer transitions 0/851 dead transitions. [2022-01-19 13:06:07,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 851 transitions, 17932 flow [2022-01-19 13:06:07,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 13:06:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 13:06:07,932 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 13:06:07,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-19 13:06:07,934 WARN L594 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). [2022-01-19 13:06:07,948 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 13:06:07,948 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 13:06:07,950 INFO L732 BasicCegarLoop]: Path program histogram: [23, 10, 6, 6, 1, 1] [2022-01-19 13:06:07,952 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 13:06:07,952 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 13:06:07,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 01:06:07 BasicIcfg [2022-01-19 13:06:07,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 13:06:07,954 INFO L158 Benchmark]: Toolchain (without parser) took 664022.03ms. Allocated memory was 381.7MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 328.4MB in the beginning and 7.9GB in the end (delta: -7.6GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. [2022-01-19 13:06:07,954 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 381.7MB. Free memory is still 346.1MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 13:06:07,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.29ms. Allocated memory is still 381.7MB. Free memory was 328.2MB in the beginning and 353.0MB in the end (delta: -24.8MB). Peak memory consumption was 16.1MB. Max. memory is 16.0GB. [2022-01-19 13:06:07,954 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.11ms. Allocated memory is still 381.7MB. Free memory was 353.0MB in the beginning and 350.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 13:06:07,954 INFO L158 Benchmark]: Boogie Preprocessor took 17.54ms. Allocated memory is still 381.7MB. Free memory was 350.9MB in the beginning and 348.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 13:06:07,954 INFO L158 Benchmark]: RCFGBuilder took 328.99ms. Allocated memory is still 381.7MB. Free memory was 348.8MB in the beginning and 331.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 13:06:07,954 INFO L158 Benchmark]: TraceAbstraction took 663474.66ms. Allocated memory was 381.7MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 331.0MB in the beginning and 7.9GB in the end (delta: -7.6GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. [2022-01-19 13:06:07,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 381.7MB. Free memory is still 346.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 172.29ms. Allocated memory is still 381.7MB. Free memory was 328.2MB in the beginning and 353.0MB in the end (delta: -24.8MB). Peak memory consumption was 16.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.11ms. Allocated memory is still 381.7MB. Free memory was 353.0MB in the beginning and 350.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.54ms. Allocated memory is still 381.7MB. Free memory was 350.9MB in the beginning and 348.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 328.99ms. Allocated memory is still 381.7MB. Free memory was 348.8MB in the beginning and 331.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 663474.66ms. Allocated memory was 381.7MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 331.0MB in the beginning and 7.9GB in the end (delta: -7.6GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 274 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 663.3s, OverallIterations: 47, TraceHistogramMax: 5, PathProgramHistogramMax: 23, EmptinessCheckTime: 0.0s, AutomataDifference: 652.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11012 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11012 mSDsluCounter, 13800 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13235 mSDsCounter, 546 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23858 IncrementalHoareTripleChecker+Invalid, 24404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 546 mSolverCounterUnsat, 2073 mSDtfsCounter, 23858 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1997 GetRequests, 1020 SyntacticMatches, 1 SemanticMatches, 976 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4307 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15253occurred in iteration=45, InterpolantAutomatonStates: 619, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 10381 NumberOfCodeBlocks, 10283 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 10638 ConstructedInterpolants, 0 QuantifiedInterpolants, 35895 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1184 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 53 InterpolantComputations, 45 PerfectInterpolantSequences, 6369/6492 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-01-19 13:06:07,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !ENTRY org.eclipse.osgi 4 0 2022-01-19 13:06:08.196 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b373fdd8/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b373fdd8/.metadata/.log.