/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:46:36,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:46:36,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:46:36,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:46:36,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:46:36,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:46:36,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:46:36,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:46:36,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:46:36,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:46:36,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:46:36,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:46:36,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:46:36,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:46:36,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:46:36,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:46:36,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:46:36,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:46:36,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:46:36,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:46:36,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:46:36,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:46:36,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:46:36,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:46:36,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:46:36,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:46:36,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:46:36,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:46:36,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:46:36,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:46:36,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:46:36,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:46:36,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:46:36,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:46:36,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:46:36,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:46:36,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:46:36,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:46:36,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:46:36,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:46:36,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:46:36,165 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-RepeatedSemanticLbe.epf [2021-06-11 06:46:36,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:46:36,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:46:36,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:46:36,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:46:36,196 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:46:36,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:46:36,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:46:36,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:46:36,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:46:36,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:46:36,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:46:36,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:46:36,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:46:36,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:46:36,199 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:46:36,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:46:36,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:46:36,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:46:36,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:46:36,445 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:46:36,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2021-06-11 06:46:36,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e649b14e7/9d1950faf950456dbd409943c9f48b2d/FLAG09781e21a [2021-06-11 06:46:37,079 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:46:37,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2021-06-11 06:46:37,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e649b14e7/9d1950faf950456dbd409943c9f48b2d/FLAG09781e21a [2021-06-11 06:46:37,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e649b14e7/9d1950faf950456dbd409943c9f48b2d [2021-06-11 06:46:37,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:46:37,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:46:37,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:46:37,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:46:37,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:46:37,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40670ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37, skipping insertion in model container [2021-06-11 06:46:37,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:46:37,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:46:37,596 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i[949,962] [2021-06-11 06:46:37,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:46:37,770 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:46:37,777 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i[949,962] [2021-06-11 06:46:37,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:46:37,886 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:46:37,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37 WrapperNode [2021-06-11 06:46:37,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:46:37,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:46:37,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:46:37,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:46:37,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:46:37,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:46:37,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:46:37,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:46:37,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... [2021-06-11 06:46:37,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:46:37,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:46:37,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:46:37,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:46:37,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:46:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:46:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:46:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:46:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:46:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:46:38,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:46:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:46:38,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:46:38,008 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:46:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:46:38,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:46:38,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:46:38,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:46:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:46:38,009 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:46:38,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:46:38,227 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:46:38,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:46:38 BoogieIcfgContainer [2021-06-11 06:46:38,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:46:38,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:46:38,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:46:38,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:46:38,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:46:37" (1/3) ... [2021-06-11 06:46:38,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646d3cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:46:38, skipping insertion in model container [2021-06-11 06:46:38,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:46:37" (2/3) ... [2021-06-11 06:46:38,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646d3cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:46:38, skipping insertion in model container [2021-06-11 06:46:38,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:46:38" (3/3) ... [2021-06-11 06:46:38,233 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2021-06-11 06:46:38,242 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:46:38,244 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:46:38,245 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:46:38,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,268 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,268 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,271 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,271 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:46:38,274 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:46:38,285 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:46:38,298 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:46:38,299 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:46:38,299 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:46:38,299 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:46:38,299 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:46:38,301 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:46:38,301 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:46:38,302 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:46:38,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-06-11 06:46:38,339 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-06-11 06:46:38,339 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:46:38,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-11 06:46:38,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-06-11 06:46:38,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-06-11 06:46:38,345 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:38,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-11 06:46:38,355 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-11 06:46:38,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-06-11 06:46:38,369 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-06-11 06:46:38,370 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:46:38,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-11 06:46:38,372 INFO L151 LiptonReduction]: Number of co-enabled transitions 804 [2021-06-11 06:46:38,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:38,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:38,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:38,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:38,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:38,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:38,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:38,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:38,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:38,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:38,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:38,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:38,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:38,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:38,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:38,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:46:38,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:39,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,042 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:46:39,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:46:39,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:39,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:39,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:39,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:39,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:39,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:39,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:39,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 06:46:40,076 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 06:46:40,271 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 06:46:40,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:40,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:46:40,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:40,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:40,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:46:40,346 INFO L163 LiptonReduction]: Checked pairs total: 1512 [2021-06-11 06:46:40,346 INFO L165 LiptonReduction]: Total number of compositions: 46 [2021-06-11 06:46:40,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2004 [2021-06-11 06:46:40,357 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-11 06:46:40,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:46:40,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:40,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:40,357 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:40,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:40,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1477298609, now seen corresponding path program 1 times [2021-06-11 06:46:40,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:40,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156201118] [2021-06-11 06:46:40,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:40,570 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:46:40,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:40,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156201118] [2021-06-11 06:46:40,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:40,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:46:40,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039548494] [2021-06-11 06:46:40,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:46:40,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:40,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:46:40,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:46:40,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2021-06-11 06:46:40,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:40,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2021-06-11 06:46:40,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:40,628 INFO L129 PetriNetUnfolder]: 7/37 cut-off events. [2021-06-11 06:46:40,628 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:46:40,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 37 events. 7/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 92 event pairs, 5 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 56. Up to 18 conditions per place. [2021-06-11 06:46:40,629 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 4 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2021-06-11 06:46:40,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 59 flow [2021-06-11 06:46:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:46:40,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:46:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2021-06-11 06:46:40,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7972222222222223 [2021-06-11 06:46:40,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2021-06-11 06:46:40,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2021-06-11 06:46:40,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:40,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2021-06-11 06:46:40,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,656 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 287 transitions. [2021-06-11 06:46:40,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 59 flow [2021-06-11 06:46:40,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:46:40,660 INFO L241 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2021-06-11 06:46:40,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2021-06-11 06:46:40,661 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-11 06:46:40,662 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:40,662 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 18 transitions, 57 flow [2021-06-11 06:46:40,662 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 18 transitions, 57 flow [2021-06-11 06:46:40,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 18 transitions, 57 flow [2021-06-11 06:46:40,669 INFO L129 PetriNetUnfolder]: 3/26 cut-off events. [2021-06-11 06:46:40,669 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:46:40,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 26 events. 3/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 39. Up to 10 conditions per place. [2021-06-11 06:46:40,671 INFO L151 LiptonReduction]: Number of co-enabled transitions 112 [2021-06-11 06:46:40,672 INFO L163 LiptonReduction]: Checked pairs total: 70 [2021-06-11 06:46:40,672 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:46:40,672 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 06:46:40,673 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2021-06-11 06:46:40,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,676 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:40,676 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:40,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:46:40,679 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:40,681 INFO L82 PathProgramCache]: Analyzing trace with hash -585248941, now seen corresponding path program 1 times [2021-06-11 06:46:40,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:40,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548756471] [2021-06-11 06:46:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:40,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:40,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:40,774 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:46:40,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:40,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548756471] [2021-06-11 06:46:40,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:40,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:46:40,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780921660] [2021-06-11 06:46:40,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:46:40,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:40,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:46:40,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:46:40,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2021-06-11 06:46:40,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:40,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2021-06-11 06:46:40,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:40,824 INFO L129 PetriNetUnfolder]: 14/51 cut-off events. [2021-06-11 06:46:40,825 INFO L130 PetriNetUnfolder]: For 13/21 co-relation queries the response was YES. [2021-06-11 06:46:40,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 51 events. 14/51 cut-off events. For 13/21 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 142 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 104. Up to 17 conditions per place. [2021-06-11 06:46:40,826 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 7 selfloop transitions, 8 changer transitions 0/25 dead transitions. [2021-06-11 06:46:40,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 107 flow [2021-06-11 06:46:40,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:46:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:46:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 456 transitions. [2021-06-11 06:46:40,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.76 [2021-06-11 06:46:40,828 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 456 transitions. [2021-06-11 06:46:40,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 456 transitions. [2021-06-11 06:46:40,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:40,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 456 transitions. [2021-06-11 06:46:40,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,832 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 5 states and 456 transitions. [2021-06-11 06:46:40,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 107 flow [2021-06-11 06:46:40,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:46:40,833 INFO L241 Difference]: Finished difference. Result has 32 places, 23 transitions, 109 flow [2021-06-11 06:46:40,833 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2021-06-11 06:46:40,833 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2021-06-11 06:46:40,833 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:40,834 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 109 flow [2021-06-11 06:46:40,834 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 109 flow [2021-06-11 06:46:40,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 23 transitions, 109 flow [2021-06-11 06:46:40,841 INFO L129 PetriNetUnfolder]: 10/44 cut-off events. [2021-06-11 06:46:40,842 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-06-11 06:46:40,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 44 events. 10/44 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 116 event pairs, 2 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 110. Up to 18 conditions per place. [2021-06-11 06:46:40,843 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 06:46:40,845 INFO L163 LiptonReduction]: Checked pairs total: 49 [2021-06-11 06:46:40,845 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:46:40,845 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:46:40,846 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 109 flow [2021-06-11 06:46:40,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:40,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:40,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:46:40,847 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:40,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:40,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1448382884, now seen corresponding path program 1 times [2021-06-11 06:46:40,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:40,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059924006] [2021-06-11 06:46:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:40,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:40,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:40,921 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:46:40,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:40,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059924006] [2021-06-11 06:46:40,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:40,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:46:40,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515232317] [2021-06-11 06:46:40,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:46:40,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:40,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:46:40,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:46:40,931 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2021-06-11 06:46:40,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:40,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2021-06-11 06:46:40,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:40,945 INFO L129 PetriNetUnfolder]: 6/35 cut-off events. [2021-06-11 06:46:40,945 INFO L130 PetriNetUnfolder]: For 42/57 co-relation queries the response was YES. [2021-06-11 06:46:40,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 35 events. 6/35 cut-off events. For 42/57 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 78 event pairs, 1 based on Foata normal form. 4/39 useless extension candidates. Maximal degree in co-relation 97. Up to 15 conditions per place. [2021-06-11 06:46:40,946 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 7 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2021-06-11 06:46:40,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 131 flow [2021-06-11 06:46:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:46:40,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:46:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2021-06-11 06:46:40,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2021-06-11 06:46:40,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2021-06-11 06:46:40,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2021-06-11 06:46:40,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:40,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2021-06-11 06:46:40,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,949 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 109 flow. Second operand 3 states and 286 transitions. [2021-06-11 06:46:40,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 131 flow [2021-06-11 06:46:40,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:46:40,951 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 120 flow [2021-06-11 06:46:40,951 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-06-11 06:46:40,952 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-06-11 06:46:40,952 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:40,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 23 transitions, 120 flow [2021-06-11 06:46:40,952 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 23 transitions, 120 flow [2021-06-11 06:46:40,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 23 transitions, 120 flow [2021-06-11 06:46:40,956 INFO L129 PetriNetUnfolder]: 6/35 cut-off events. [2021-06-11 06:46:40,956 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-06-11 06:46:40,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 35 events. 6/35 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 73 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 86. Up to 13 conditions per place. [2021-06-11 06:46:40,957 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 06:46:40,958 INFO L163 LiptonReduction]: Checked pairs total: 60 [2021-06-11 06:46:40,958 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:46:40,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 06:46:40,961 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 120 flow [2021-06-11 06:46:40,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:40,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:40,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:40,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:46:40,963 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:40,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:40,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1933085481, now seen corresponding path program 1 times [2021-06-11 06:46:40,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:40,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895353283] [2021-06-11 06:46:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:41,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,020 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:46:41,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:41,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895353283] [2021-06-11 06:46:41,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:41,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:46:41,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59343001] [2021-06-11 06:46:41,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:46:41,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:41,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:46:41,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:46:41,031 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2021-06-11 06:46:41,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:41,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2021-06-11 06:46:41,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:41,054 INFO L129 PetriNetUnfolder]: 5/35 cut-off events. [2021-06-11 06:46:41,054 INFO L130 PetriNetUnfolder]: For 79/92 co-relation queries the response was YES. [2021-06-11 06:46:41,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 35 events. 5/35 cut-off events. For 79/92 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 1 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 102. Up to 13 conditions per place. [2021-06-11 06:46:41,055 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 3 selfloop transitions, 3 changer transitions 9/25 dead transitions. [2021-06-11 06:46:41,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 162 flow [2021-06-11 06:46:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:46:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:46:41,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2021-06-11 06:46:41,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75625 [2021-06-11 06:46:41,057 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2021-06-11 06:46:41,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2021-06-11 06:46:41,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:41,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2021-06-11 06:46:41,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,059 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,059 INFO L185 Difference]: Start difference. First operand has 34 places, 23 transitions, 120 flow. Second operand 4 states and 363 transitions. [2021-06-11 06:46:41,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 162 flow [2021-06-11 06:46:41,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:46:41,060 INFO L241 Difference]: Finished difference. Result has 37 places, 16 transitions, 82 flow [2021-06-11 06:46:41,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=37, PETRI_TRANSITIONS=16} [2021-06-11 06:46:41,061 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-11 06:46:41,061 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:41,061 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 16 transitions, 82 flow [2021-06-11 06:46:41,061 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 16 transitions, 82 flow [2021-06-11 06:46:41,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 16 transitions, 82 flow [2021-06-11 06:46:41,065 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-06-11 06:46:41,065 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-06-11 06:46:41,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 19 events. 1/19 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 1 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 48. Up to 6 conditions per place. [2021-06-11 06:46:41,065 INFO L151 LiptonReduction]: Number of co-enabled transitions 62 [2021-06-11 06:46:41,067 INFO L163 LiptonReduction]: Checked pairs total: 28 [2021-06-11 06:46:41,067 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:46:41,067 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 06:46:41,068 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 16 transitions, 82 flow [2021-06-11 06:46:41,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:41,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:41,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:46:41,069 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:41,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:41,069 INFO L82 PathProgramCache]: Analyzing trace with hash 326502921, now seen corresponding path program 1 times [2021-06-11 06:46:41,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:41,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332373906] [2021-06-11 06:46:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:41,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,120 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:46:41,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:41,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332373906] [2021-06-11 06:46:41,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:41,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:46:41,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833947961] [2021-06-11 06:46:41,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:46:41,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:41,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:46:41,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:46:41,129 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 120 [2021-06-11 06:46:41,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 16 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:41,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 120 [2021-06-11 06:46:41,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:41,147 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-06-11 06:46:41,147 INFO L130 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2021-06-11 06:46:41,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 32 events. 3/32 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 1 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 96. Up to 9 conditions per place. [2021-06-11 06:46:41,148 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 3 selfloop transitions, 3 changer transitions 5/21 dead transitions. [2021-06-11 06:46:41,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 21 transitions, 144 flow [2021-06-11 06:46:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:46:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:46:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2021-06-11 06:46:41,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7520833333333333 [2021-06-11 06:46:41,149 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2021-06-11 06:46:41,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2021-06-11 06:46:41,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:41,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2021-06-11 06:46:41,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,151 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,151 INFO L185 Difference]: Start difference. First operand has 36 places, 16 transitions, 82 flow. Second operand 4 states and 361 transitions. [2021-06-11 06:46:41,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 21 transitions, 144 flow [2021-06-11 06:46:41,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 87 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-06-11 06:46:41,154 INFO L241 Difference]: Finished difference. Result has 30 places, 16 transitions, 62 flow [2021-06-11 06:46:41,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2021-06-11 06:46:41,154 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-06-11 06:46:41,154 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:41,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 16 transitions, 62 flow [2021-06-11 06:46:41,154 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 16 transitions, 62 flow [2021-06-11 06:46:41,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 16 transitions, 62 flow [2021-06-11 06:46:41,156 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-06-11 06:46:41,156 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-06-11 06:46:41,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 18 events. 1/18 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 1 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2021-06-11 06:46:41,156 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 06:46:41,157 INFO L163 LiptonReduction]: Checked pairs total: 14 [2021-06-11 06:46:41,157 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:46:41,158 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 06:46:41,158 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 62 flow [2021-06-11 06:46:41,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:41,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:41,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:46:41,159 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:41,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:41,160 INFO L82 PathProgramCache]: Analyzing trace with hash 132223153, now seen corresponding path program 1 times [2021-06-11 06:46:41,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:41,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671865892] [2021-06-11 06:46:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:41,199 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:46:41,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:46:41,204 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:46:41,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:41,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671865892] [2021-06-11 06:46:41,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:41,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:46:41,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437757736] [2021-06-11 06:46:41,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:46:41,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:41,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:46:41,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:46:41,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2021-06-11 06:46:41,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:41,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2021-06-11 06:46:41,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:41,247 INFO L129 PetriNetUnfolder]: 32/75 cut-off events. [2021-06-11 06:46:41,247 INFO L130 PetriNetUnfolder]: For 221/252 co-relation queries the response was YES. [2021-06-11 06:46:41,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 75 events. 32/75 cut-off events. For 221/252 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 224 event pairs, 16 based on Foata normal form. 12/79 useless extension candidates. Maximal degree in co-relation 189. Up to 49 conditions per place. [2021-06-11 06:46:41,249 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 5 selfloop transitions, 4 changer transitions 7/26 dead transitions. [2021-06-11 06:46:41,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 26 transitions, 114 flow [2021-06-11 06:46:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:46:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:46:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 463 transitions. [2021-06-11 06:46:41,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7716666666666666 [2021-06-11 06:46:41,250 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 463 transitions. [2021-06-11 06:46:41,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 463 transitions. [2021-06-11 06:46:41,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:41,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 463 transitions. [2021-06-11 06:46:41,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,252 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,252 INFO L185 Difference]: Start difference. First operand has 30 places, 16 transitions, 62 flow. Second operand 5 states and 463 transitions. [2021-06-11 06:46:41,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 26 transitions, 114 flow [2021-06-11 06:46:41,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 102 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-11 06:46:41,254 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 86 flow [2021-06-11 06:46:41,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2021-06-11 06:46:41,254 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-11 06:46:41,254 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:41,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 19 transitions, 86 flow [2021-06-11 06:46:41,255 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 19 transitions, 86 flow [2021-06-11 06:46:41,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 19 transitions, 86 flow [2021-06-11 06:46:41,259 INFO L129 PetriNetUnfolder]: 27/62 cut-off events. [2021-06-11 06:46:41,259 INFO L130 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2021-06-11 06:46:41,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 62 events. 27/62 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 171 event pairs, 15 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 181. Up to 39 conditions per place. [2021-06-11 06:46:41,260 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 06:46:41,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:41,292 INFO L163 LiptonReduction]: Checked pairs total: 6 [2021-06-11 06:46:41,293 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 06:46:41,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-06-11 06:46:41,294 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 87 flow [2021-06-11 06:46:41,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:41,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:41,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:46:41,294 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:41,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:41,294 INFO L82 PathProgramCache]: Analyzing trace with hash -196060121, now seen corresponding path program 1 times [2021-06-11 06:46:41,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:41,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933030139] [2021-06-11 06:46:41,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:41,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,326 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:46:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:46:41,330 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:46:41,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:41,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933030139] [2021-06-11 06:46:41,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:41,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:46:41,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471117089] [2021-06-11 06:46:41,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:46:41,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:41,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:46:41,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:46:41,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2021-06-11 06:46:41,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:41,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2021-06-11 06:46:41,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:41,365 INFO L129 PetriNetUnfolder]: 17/55 cut-off events. [2021-06-11 06:46:41,365 INFO L130 PetriNetUnfolder]: For 159/201 co-relation queries the response was YES. [2021-06-11 06:46:41,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 55 events. 17/55 cut-off events. For 159/201 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 133 event pairs, 3 based on Foata normal form. 19/72 useless extension candidates. Maximal degree in co-relation 188. Up to 35 conditions per place. [2021-06-11 06:46:41,366 INFO L132 encePairwiseOnDemand]: 114/121 looper letters, 5 selfloop transitions, 7 changer transitions 7/29 dead transitions. [2021-06-11 06:46:41,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 183 flow [2021-06-11 06:46:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 06:46:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 06:46:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2021-06-11 06:46:41,367 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7644628099173554 [2021-06-11 06:46:41,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2021-06-11 06:46:41,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2021-06-11 06:46:41,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:41,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2021-06-11 06:46:41,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,369 INFO L185 Difference]: Start difference. First operand has 31 places, 19 transitions, 87 flow. Second operand 6 states and 555 transitions. [2021-06-11 06:46:41,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 183 flow [2021-06-11 06:46:41,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 177 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 06:46:41,371 INFO L241 Difference]: Finished difference. Result has 37 places, 22 transitions, 137 flow [2021-06-11 06:46:41,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2021-06-11 06:46:41,371 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-11 06:46:41,371 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:41,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 22 transitions, 137 flow [2021-06-11 06:46:41,371 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 22 transitions, 137 flow [2021-06-11 06:46:41,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 22 transitions, 137 flow [2021-06-11 06:46:41,374 INFO L129 PetriNetUnfolder]: 12/43 cut-off events. [2021-06-11 06:46:41,374 INFO L130 PetriNetUnfolder]: For 101/108 co-relation queries the response was YES. [2021-06-11 06:46:41,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 43 events. 12/43 cut-off events. For 101/108 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 78 event pairs, 3 based on Foata normal form. 2/43 useless extension candidates. Maximal degree in co-relation 155. Up to 23 conditions per place. [2021-06-11 06:46:41,375 INFO L151 LiptonReduction]: Number of co-enabled transitions 24 [2021-06-11 06:46:41,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:41,397 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 06:46:41,397 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 06:46:41,397 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-06-11 06:46:41,398 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 138 flow [2021-06-11 06:46:41,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,398 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:41,398 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:41,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:46:41,398 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash -392057197, now seen corresponding path program 1 times [2021-06-11 06:46:41,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:41,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103929784] [2021-06-11 06:46:41,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:41,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,421 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:46:41,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:46:41,425 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:46:41,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:41,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103929784] [2021-06-11 06:46:41,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:41,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:46:41,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339124467] [2021-06-11 06:46:41,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:46:41,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:41,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:46:41,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:46:41,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 122 [2021-06-11 06:46:41,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:41,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 122 [2021-06-11 06:46:41,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:41,490 INFO L129 PetriNetUnfolder]: 7/37 cut-off events. [2021-06-11 06:46:41,490 INFO L130 PetriNetUnfolder]: For 141/166 co-relation queries the response was YES. [2021-06-11 06:46:41,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 37 events. 7/37 cut-off events. For 141/166 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 0 based on Foata normal form. 12/48 useless extension candidates. Maximal degree in co-relation 139. Up to 20 conditions per place. [2021-06-11 06:46:41,490 INFO L132 encePairwiseOnDemand]: 114/122 looper letters, 2 selfloop transitions, 10 changer transitions 4/26 dead transitions. [2021-06-11 06:46:41,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 26 transitions, 206 flow [2021-06-11 06:46:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:46:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:46:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 641 transitions. [2021-06-11 06:46:41,493 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7505854800936768 [2021-06-11 06:46:41,493 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 641 transitions. [2021-06-11 06:46:41,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 641 transitions. [2021-06-11 06:46:41,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:41,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 641 transitions. [2021-06-11 06:46:41,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.57142857142857) internal successors, (641), 7 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,496 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,496 INFO L185 Difference]: Start difference. First operand has 35 places, 22 transitions, 138 flow. Second operand 7 states and 641 transitions. [2021-06-11 06:46:41,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 26 transitions, 206 flow [2021-06-11 06:46:41,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 26 transitions, 168 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-06-11 06:46:41,497 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 138 flow [2021-06-11 06:46:41,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=138, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2021-06-11 06:46:41,497 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2021-06-11 06:46:41,497 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:41,497 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 22 transitions, 138 flow [2021-06-11 06:46:41,497 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 22 transitions, 138 flow [2021-06-11 06:46:41,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 22 transitions, 138 flow [2021-06-11 06:46:41,500 INFO L129 PetriNetUnfolder]: 5/31 cut-off events. [2021-06-11 06:46:41,500 INFO L130 PetriNetUnfolder]: For 45/46 co-relation queries the response was YES. [2021-06-11 06:46:41,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 31 events. 5/31 cut-off events. For 45/46 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 87. Up to 11 conditions per place. [2021-06-11 06:46:41,500 INFO L151 LiptonReduction]: Number of co-enabled transitions 16 [2021-06-11 06:46:41,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:41,561 INFO L163 LiptonReduction]: Checked pairs total: 6 [2021-06-11 06:46:41,562 INFO L165 LiptonReduction]: Total number of compositions: 3 [2021-06-11 06:46:41,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-06-11 06:46:41,564 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 21 transitions, 136 flow [2021-06-11 06:46:41,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:46:41,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:46:41,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:46:41,564 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:46:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:46:41,565 INFO L82 PathProgramCache]: Analyzing trace with hash 651323127, now seen corresponding path program 1 times [2021-06-11 06:46:41,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:46:41,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766642243] [2021-06-11 06:46:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:46:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:46:41,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:46:41,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:46:41,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:46:41,597 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:46:41,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:46:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:46:41,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766642243] [2021-06-11 06:46:41,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:46:41,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:46:41,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603974117] [2021-06-11 06:46:41,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:46:41,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:46:41,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:46:41,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:46:41,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 125 [2021-06-11 06:46:41,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 21 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:46:41,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 125 [2021-06-11 06:46:41,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:46:41,622 INFO L129 PetriNetUnfolder]: 5/27 cut-off events. [2021-06-11 06:46:41,622 INFO L130 PetriNetUnfolder]: For 55/61 co-relation queries the response was YES. [2021-06-11 06:46:41,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 27 events. 5/27 cut-off events. For 55/61 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 3/29 useless extension candidates. Maximal degree in co-relation 95. Up to 11 conditions per place. [2021-06-11 06:46:41,622 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-06-11 06:46:41,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 20 transitions, 140 flow [2021-06-11 06:46:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:46:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:46:41,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2021-06-11 06:46:41,623 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7184 [2021-06-11 06:46:41,624 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2021-06-11 06:46:41,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2021-06-11 06:46:41,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:46:41,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2021-06-11 06:46:41,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,625 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,625 INFO L185 Difference]: Start difference. First operand has 37 places, 21 transitions, 136 flow. Second operand 5 states and 449 transitions. [2021-06-11 06:46:41,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 20 transitions, 140 flow [2021-06-11 06:46:41,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 20 transitions, 104 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-06-11 06:46:41,626 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-06-11 06:46:41,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-06-11 06:46:41,626 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-06-11 06:46:41,626 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:46:41,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 0 transitions, 0 flow [2021-06-11 06:46:41,627 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 0 transitions, 0 flow [2021-06-11 06:46:41,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:46:41,627 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:46:41,627 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:46:41,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 06:46:41,627 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:46:41,627 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:46:41,627 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:46:41,627 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:46:41,628 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:46:41,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:46:41,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 06:46:41,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:46:41 BasicIcfg [2021-06-11 06:46:41,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:46:41,631 INFO L168 Benchmark]: Toolchain (without parser) took 4356.70 ms. Allocated memory was 396.4 MB in the beginning and 505.4 MB in the end (delta: 109.1 MB). Free memory was 358.8 MB in the beginning and 197.6 MB in the end (delta: 161.2 MB). Peak memory consumption was 271.7 MB. Max. memory is 16.0 GB. [2021-06-11 06:46:41,631 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 396.4 MB. Free memory is still 376.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:46:41,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.03 ms. Allocated memory is still 396.4 MB. Free memory was 358.7 MB in the beginning and 358.0 MB in the end (delta: 697.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-11 06:46:41,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.06 ms. Allocated memory is still 396.4 MB. Free memory was 358.0 MB in the beginning and 355.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:46:41,632 INFO L168 Benchmark]: Boogie Preprocessor took 24.55 ms. Allocated memory is still 396.4 MB. Free memory was 355.9 MB in the beginning and 354.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:46:41,632 INFO L168 Benchmark]: RCFGBuilder took 272.41 ms. Allocated memory is still 396.4 MB. Free memory was 354.2 MB in the beginning and 329.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:46:41,633 INFO L168 Benchmark]: TraceAbstraction took 3401.12 ms. Allocated memory was 396.4 MB in the beginning and 505.4 MB in the end (delta: 109.1 MB). Free memory was 329.6 MB in the beginning and 197.6 MB in the end (delta: 132.0 MB). Peak memory consumption was 243.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:46:41,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 396.4 MB. Free memory is still 376.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 598.03 ms. Allocated memory is still 396.4 MB. Free memory was 358.7 MB in the beginning and 358.0 MB in the end (delta: 697.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.06 ms. Allocated memory is still 396.4 MB. Free memory was 358.0 MB in the beginning and 355.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.55 ms. Allocated memory is still 396.4 MB. Free memory was 355.9 MB in the beginning and 354.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 272.41 ms. Allocated memory is still 396.4 MB. Free memory was 354.2 MB in the beginning and 329.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3401.12 ms. Allocated memory was 396.4 MB in the beginning and 505.4 MB in the end (delta: 109.1 MB). Free memory was 329.6 MB in the beginning and 197.6 MB in the end (delta: 132.0 MB). Peak memory consumption was 243.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1990.5ms, 68 PlacesBefore, 26 PlacesAfterwards, 59 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 1512 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 779, positive: 700, positive conditional: 0, positive unconditional: 700, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 507, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 507, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 507, positive: 468, positive conditional: 0, positive unconditional: 468, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 779, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 507, unknown conditional: 0, unknown unconditional: 507] , Statistics on independence cache: Total cache size (in pairs): 800, Positive cache size: 772, Positive conditional cache size: 0, Positive unconditional cache size: 772, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9ms, 26 PlacesBefore, 26 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 70 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 803, Positive cache size: 775, Positive conditional cache size: 0, Positive unconditional cache size: 775, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4ms, 32 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 803, Positive cache size: 775, Positive conditional cache size: 0, Positive unconditional cache size: 775, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1ms, 34 PlacesBefore, 34 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 803, Positive cache size: 775, Positive conditional cache size: 0, Positive unconditional cache size: 775, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3ms, 37 PlacesBefore, 36 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 805, Positive cache size: 777, Positive conditional cache size: 0, Positive unconditional cache size: 777, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0ms, 30 PlacesBefore, 30 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 805, Positive cache size: 777, Positive conditional cache size: 0, Positive unconditional cache size: 777, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.0ms, 33 PlacesBefore, 31 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 831, Positive cache size: 803, Positive conditional cache size: 0, Positive unconditional cache size: 803, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 37 PlacesBefore, 35 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 859, Positive cache size: 831, Positive conditional cache size: 0, Positive unconditional cache size: 831, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.1ms, 40 PlacesBefore, 37 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 961, Positive cache size: 933, Positive conditional cache size: 0, Positive unconditional cache size: 933, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 34 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 961, Positive cache size: 933, Positive conditional cache size: 0, Positive unconditional cache size: 933, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3333.0ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 360.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2049.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 39 SDtfs, 34 SDslu, 22 SDs, 0 SdLazy, 144 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 108.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=7, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.0ms SsaConstructionTime, 165.1ms SatisfiabilityAnalysisTime, 361.8ms InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...