/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:51:40,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:51:40,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:51:40,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:51:40,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:51:40,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:51:40,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:51:40,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:51:40,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:51:40,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:51:40,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:51:40,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:51:40,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:51:40,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:51:40,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:51:40,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:51:40,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:51:40,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:51:40,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:51:40,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:51:40,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:51:40,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:51:40,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:51:40,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:51:40,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 19:51:40,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 19:51:40,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 19:51:40,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 19:51:40,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 19:51:40,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 19:51:40,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 19:51:40,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 19:51:40,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 19:51:40,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:51:40,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:51:40,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:51:40,261 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 19:51:40,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:51:40,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:51:40,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:51:40,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:51:40,326 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:51:40,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:51:40,326 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:51:40,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:51:40,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:51:40,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:51:40,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:51:40,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:51:40,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:51:40,329 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:51:40,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:51:40,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:51:40,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:51:40,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:51:40,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:51:40,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:51:40,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:51:40,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:51:40,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:51:40,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:51:40,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:51:40,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:51:40,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:51:40,332 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:51:40,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:51:40,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:51:40,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:51:40,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:51:40,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:51:40,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:51:40,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:51:40,821 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:51:40,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i [2021-04-28 19:51:40,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0071d714c/d915a20855b249d2bde11d4baa9702a0/FLAG224c0fbdc [2021-04-28 19:51:41,665 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:51:41,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i [2021-04-28 19:51:41,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0071d714c/d915a20855b249d2bde11d4baa9702a0/FLAG224c0fbdc [2021-04-28 19:51:41,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0071d714c/d915a20855b249d2bde11d4baa9702a0 [2021-04-28 19:51:41,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:51:41,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:51:41,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:51:41,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:51:41,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:51:41,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:51:41" (1/1) ... [2021-04-28 19:51:41,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a337e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:41, skipping insertion in model container [2021-04-28 19:51:41,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:51:41" (1/1) ... [2021-04-28 19:51:41,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:51:42,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:51:42,303 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/mix030_power.opt.i[950,963] [2021-04-28 19:51:42,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:51:42,738 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:51:42,758 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/mix030_power.opt.i[950,963] [2021-04-28 19:51:42,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:51:42,979 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:51:42,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42 WrapperNode [2021-04-28 19:51:42,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:51:42,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:51:42,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:51:42,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:51:42,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:51:43,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:51:43,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:51:43,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:51:43,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (1/1) ... [2021-04-28 19:51:43,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:51:43,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:51:43,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:51:43,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:51:43,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (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 [2021-04-28 19:51:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:51:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:51:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:51:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:51:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:51:43,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:51:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:51:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:51:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:51:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:51:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:51:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:51:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:51:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:51:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:51:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:51:43,266 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 19:51:45,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:51:45,966 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:51:45,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:51:45 BoogieIcfgContainer [2021-04-28 19:51:45,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:51:45,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:51:45,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:51:45,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:51:45,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:51:41" (1/3) ... [2021-04-28 19:51:45,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abfbecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:51:45, skipping insertion in model container [2021-04-28 19:51:45,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:51:42" (2/3) ... [2021-04-28 19:51:45,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abfbecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:51:45, skipping insertion in model container [2021-04-28 19:51:45,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:51:45" (3/3) ... [2021-04-28 19:51:45,981 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_power.opt.i [2021-04-28 19:51:45,991 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:51:45,997 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:51:45,998 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:51:46,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,070 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,070 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,080 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,080 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,097 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,106 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,107 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,110 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,110 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,112 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,112 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,112 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,112 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,112 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,114 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,115 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,118 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,118 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:51:46,121 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:51:46,146 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:51:46,193 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:51:46,193 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:51:46,194 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:51:46,194 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:51:46,194 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:51:46,194 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:51:46,194 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:51:46,194 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:51:46,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:51:46,294 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:51:46,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:51:46,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:51:46,317 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:51:46,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-04-28 19:51:46,327 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:51:46,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:51:46,351 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:51:46,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-04-28 19:51:46,414 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:51:46,414 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:51:46,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:51:46,422 INFO L146 LiptonReduction]: Number of co-enabled transitions 2630 [2021-04-28 19:51:50,721 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:51:51,231 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:51:53,570 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:51:54,720 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:51:55,677 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:51:55,801 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 19:51:56,362 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 19:51:56,624 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 19:51:59,467 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:52:00,009 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:52:02,540 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:52:03,649 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:52:05,454 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:52:06,061 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:52:08,717 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:52:09,925 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:52:11,319 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 19:52:11,926 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 19:52:14,754 WARN L205 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 19:52:16,032 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 19:52:19,182 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:52:19,793 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:52:22,881 WARN L205 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:52:24,298 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:52:25,809 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:52:26,512 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:52:29,581 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:52:31,007 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:52:32,643 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:52:33,404 WARN L205 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:52:36,809 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:52:38,353 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:52:40,095 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:52:40,911 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:52:44,408 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:52:46,093 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:52:51,124 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:52:52,843 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-04-28 19:52:56,696 WARN L205 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:52:58,458 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:53:01,352 WARN L205 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:53:02,252 WARN L205 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:53:06,456 WARN L205 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:53:08,326 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:53:10,447 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:53:11,378 WARN L205 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:53:15,805 WARN L205 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 19:53:17,805 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 19:53:21,407 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:21,538 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:21,677 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:21,814 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:21,938 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:22,063 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:22,192 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:22,320 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:22,423 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:22,541 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:22,743 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:22,886 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:23,023 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:23,167 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:23,312 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:23,424 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:23,529 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:23,647 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:23,759 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:23,877 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:23,990 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:24,105 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:24,223 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:24,374 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:53:24,525 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:53:24,680 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:53:24,837 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:53:24,952 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:25,066 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:25,177 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:25,292 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:25,431 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:25,572 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:25,715 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:25,856 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:27,055 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:27,166 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:27,281 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:27,397 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:53:27,930 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,092 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,234 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,376 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,516 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,657 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,798 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:28,938 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:29,078 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:29,217 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:29,357 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:29,497 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:30,009 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:30,131 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:30,253 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:30,375 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:53:30,515 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:30,653 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:30,794 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:30,932 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:53:31,060 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:31,187 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:31,314 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:31,441 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:53:31,650 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:53:31,854 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:53:32,056 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:53:32,270 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:53:32,374 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:32,478 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:32,582 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:32,686 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:53:32,819 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:32,954 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:33,087 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:33,217 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:53:34,117 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:53:34,335 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:53:34,547 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:53:34,762 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:53:34,871 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:34,979 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:35,089 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:35,199 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:53:35,399 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:53:35,604 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:53:35,819 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:53:36,024 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:53:36,231 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:53:36,433 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:53:36,647 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:53:36,843 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:53:37,045 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:37,234 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:37,419 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:37,598 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:37,774 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:53:37,950 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:53:38,129 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:53:38,312 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:53:38,513 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:53:38,713 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:53:38,908 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:53:39,101 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:53:39,297 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:39,496 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:39,681 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:39,871 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:53:40,117 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:53:40,347 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:53:40,574 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:53:40,801 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:53:40,968 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:53:41,124 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:53:41,290 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:53:41,467 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:53:41,661 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:53:41,844 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:53:42,019 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:53:42,195 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:53:42,639 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:53:42,943 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:53:43,217 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:53:43,505 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:53:43,801 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:53:44,106 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:53:44,429 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:53:44,755 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:53:45,106 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:45,450 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:45,780 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:46,109 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:47,017 WARN L205 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 19:53:47,423 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 19:53:48,336 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 19:53:48,769 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 19:53:49,061 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:53:49,362 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:53:49,666 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:53:49,976 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:53:50,312 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:50,647 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:50,999 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:51,343 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:52,263 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 19:53:52,703 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 19:53:53,638 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 19:53:54,091 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 19:53:54,420 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:54,753 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:55,076 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:55,391 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:53:55,646 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:55,895 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:56,173 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:56,447 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:56,726 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:53:56,987 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:53:57,237 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:53:57,477 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:53:57,709 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:53:57,940 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:53:58,197 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:53:58,455 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:53:58,735 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:59,005 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:59,255 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:59,505 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:53:59,832 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:54:00,172 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:54:00,504 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:54:00,841 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:54:01,173 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:54:01,499 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:54:01,833 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:54:02,184 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:54:02,471 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:54:02,763 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:54:03,041 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:54:03,330 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:54:03,636 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:54:03,963 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:54:04,266 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:54:04,570 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:54:04,800 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:54:05,019 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:54:05,245 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:54:05,471 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:54:05,535 INFO L158 LiptonReduction]: Checked pairs total: 23418 [2021-04-28 19:54:05,535 INFO L160 LiptonReduction]: Total number of compositions: 231 [2021-04-28 19:54:05,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139214 [2021-04-28 19:54:05,564 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-04-28 19:54:05,564 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:05,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:05,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:05,565 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:05,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:05,571 INFO L82 PathProgramCache]: Analyzing trace with hash 101771008, now seen corresponding path program 1 times [2021-04-28 19:54:05,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:05,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260142043] [2021-04-28 19:54:05,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:05,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:05,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:05,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:05,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260142043] [2021-04-28 19:54:05,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:05,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:54:05,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982362529] [2021-04-28 19:54:05,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:54:05,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:05,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:54:05,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:54:05,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 346 [2021-04-28 19:54:06,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:06,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:06,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 346 [2021-04-28 19:54:06,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:06,704 INFO L129 PetriNetUnfolder]: 329/809 cut-off events. [2021-04-28 19:54:06,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:06,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 809 events. 329/809 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 5988 event pairs, 195 based on Foata normal form. 11/397 useless extension candidates. Maximal degree in co-relation 1297. Up to 401 conditions per place. [2021-04-28 19:54:06,714 INFO L132 encePairwiseOnDemand]: 329/346 looper letters, 9 selfloop transitions, 2 changer transitions 93/147 dead transitions. [2021-04-28 19:54:06,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 404 flow [2021-04-28 19:54:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:06,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:06,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 853 transitions. [2021-04-28 19:54:06,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8217726396917149 [2021-04-28 19:54:06,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 853 transitions. [2021-04-28 19:54:06,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 853 transitions. [2021-04-28 19:54:06,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:06,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 853 transitions. [2021-04-28 19:54:06,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:06,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:06,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:06,764 INFO L185 Difference]: Start difference. First operand has 145 places, 134 transitions, 280 flow. Second operand 3 states and 853 transitions. [2021-04-28 19:54:06,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 404 flow [2021-04-28 19:54:06,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 147 transitions, 400 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:54:06,773 INFO L241 Difference]: Finished difference. Result has 140 places, 50 transitions, 112 flow [2021-04-28 19:54:06,776 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=140, PETRI_TRANSITIONS=50} [2021-04-28 19:54:06,777 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -5 predicate places. [2021-04-28 19:54:06,777 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:06,777 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 50 transitions, 112 flow [2021-04-28 19:54:06,777 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 50 transitions, 112 flow [2021-04-28 19:54:06,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 112 flow [2021-04-28 19:54:06,785 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-28 19:54:06,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:06,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 167 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 19:54:06,787 INFO L146 LiptonReduction]: Number of co-enabled transitions 1494 [2021-04-28 19:54:07,558 INFO L158 LiptonReduction]: Checked pairs total: 1518 [2021-04-28 19:54:07,559 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:07,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 782 [2021-04-28 19:54:07,561 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 112 flow [2021-04-28 19:54:07,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:07,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:07,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:07,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:54:07,563 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:07,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:07,564 INFO L82 PathProgramCache]: Analyzing trace with hash 978090954, now seen corresponding path program 1 times [2021-04-28 19:54:07,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:07,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637040841] [2021-04-28 19:54:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:07,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:07,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:07,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637040841] [2021-04-28 19:54:07,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:07,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:54:07,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422114610] [2021-04-28 19:54:07,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:54:07,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:07,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:54:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:54:07,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 346 [2021-04-28 19:54:07,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:07,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:07,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 346 [2021-04-28 19:54:07,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:07,759 INFO L129 PetriNetUnfolder]: 7/78 cut-off events. [2021-04-28 19:54:07,760 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:07,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 78 events. 7/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 262 event pairs, 3 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 100. Up to 18 conditions per place. [2021-04-28 19:54:07,761 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 4 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2021-04-28 19:54:07,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 130 flow [2021-04-28 19:54:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:07,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 854 transitions. [2021-04-28 19:54:07,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8227360308285164 [2021-04-28 19:54:07,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 854 transitions. [2021-04-28 19:54:07,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 854 transitions. [2021-04-28 19:54:07,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:07,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 854 transitions. [2021-04-28 19:54:07,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:07,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:07,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:07,776 INFO L185 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 854 transitions. [2021-04-28 19:54:07,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 130 flow [2021-04-28 19:54:07,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:54:07,778 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 123 flow [2021-04-28 19:54:07,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 19:54:07,779 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:54:07,779 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:07,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:54:07,780 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:54:07,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 19:54:07,790 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 19:54:07,791 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:07,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 223 event pairs, 1 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 77. Up to 10 conditions per place. [2021-04-28 19:54:07,793 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-28 19:54:08,497 INFO L158 LiptonReduction]: Checked pairs total: 1416 [2021-04-28 19:54:08,498 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:08,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 719 [2021-04-28 19:54:08,500 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 19:54:08,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:08,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:08,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:54:08,502 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:08,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:08,502 INFO L82 PathProgramCache]: Analyzing trace with hash 255008319, now seen corresponding path program 1 times [2021-04-28 19:54:08,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:08,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244652663] [2021-04-28 19:54:08,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:08,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:08,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:08,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244652663] [2021-04-28 19:54:08,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:08,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:54:08,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180567775] [2021-04-28 19:54:08,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:54:08,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:08,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:54:08,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:54:08,603 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 346 [2021-04-28 19:54:08,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:08,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 346 [2021-04-28 19:54:08,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:08,634 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-28 19:54:08,634 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 19:54:08,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 58 events. 2/58 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 181 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2021-04-28 19:54:08,636 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 1 selfloop transitions, 2 changer transitions 1/50 dead transitions. [2021-04-28 19:54:08,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 129 flow [2021-04-28 19:54:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2021-04-28 19:54:08,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7061657032755299 [2021-04-28 19:54:08,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2021-04-28 19:54:08,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2021-04-28 19:54:08,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:08,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2021-04-28 19:54:08,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,651 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 733 transitions. [2021-04-28 19:54:08,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 129 flow [2021-04-28 19:54:08,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:54:08,655 INFO L241 Difference]: Finished difference. Result has 62 places, 49 transitions, 126 flow [2021-04-28 19:54:08,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-04-28 19:54:08,656 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:54:08,656 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:08,657 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:54:08,660 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:54:08,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 126 flow [2021-04-28 19:54:08,670 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-28 19:54:08,670 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 19:54:08,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 59 events. 2/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 74. Up to 8 conditions per place. [2021-04-28 19:54:08,673 INFO L146 LiptonReduction]: Number of co-enabled transitions 1438 [2021-04-28 19:54:08,764 INFO L158 LiptonReduction]: Checked pairs total: 1323 [2021-04-28 19:54:08,764 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:08,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-04-28 19:54:08,766 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 126 flow [2021-04-28 19:54:08,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:08,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:08,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:54:08,767 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:08,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:08,768 INFO L82 PathProgramCache]: Analyzing trace with hash -684680184, now seen corresponding path program 1 times [2021-04-28 19:54:08,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:08,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764513914] [2021-04-28 19:54:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:08,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:08,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:08,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764513914] [2021-04-28 19:54:08,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:08,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:54:08,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634338545] [2021-04-28 19:54:08,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:54:08,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:08,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:54:08,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:54:08,940 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 346 [2021-04-28 19:54:08,942 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,942 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:08,942 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 346 [2021-04-28 19:54:08,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:08,975 INFO L129 PetriNetUnfolder]: 8/83 cut-off events. [2021-04-28 19:54:08,975 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-04-28 19:54:08,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 83 events. 8/83 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 300 event pairs, 2 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 123. Up to 15 conditions per place. [2021-04-28 19:54:08,977 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 19:54:08,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 142 flow [2021-04-28 19:54:08,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2021-04-28 19:54:08,983 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7235067437379576 [2021-04-28 19:54:08,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2021-04-28 19:54:08,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2021-04-28 19:54:08,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:08,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2021-04-28 19:54:08,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:08,992 INFO L185 Difference]: Start difference. First operand has 61 places, 49 transitions, 126 flow. Second operand 3 states and 751 transitions. [2021-04-28 19:54:08,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 142 flow [2021-04-28 19:54:08,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:54:08,994 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 141 flow [2021-04-28 19:54:08,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-04-28 19:54:08,995 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:54:08,995 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:08,995 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 51 transitions, 141 flow [2021-04-28 19:54:08,995 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 51 transitions, 141 flow [2021-04-28 19:54:08,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 51 transitions, 141 flow [2021-04-28 19:54:09,009 INFO L129 PetriNetUnfolder]: 6/78 cut-off events. [2021-04-28 19:54:09,009 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-04-28 19:54:09,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 78 events. 6/78 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 330 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2021-04-28 19:54:09,012 INFO L146 LiptonReduction]: Number of co-enabled transitions 1556 [2021-04-28 19:54:09,019 INFO L158 LiptonReduction]: Checked pairs total: 1039 [2021-04-28 19:54:09,019 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:09,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-28 19:54:09,021 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 141 flow [2021-04-28 19:54:09,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:09,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:09,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:54:09,023 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:09,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:09,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1247151215, now seen corresponding path program 1 times [2021-04-28 19:54:09,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:09,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616483547] [2021-04-28 19:54:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:09,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:54:09,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:09,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:54:09,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:09,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616483547] [2021-04-28 19:54:09,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:09,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:54:09,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863595096] [2021-04-28 19:54:09,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:54:09,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:09,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:54:09,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:54:09,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 346 [2021-04-28 19:54:09,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 218.75) internal successors, (875), 4 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:09,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 346 [2021-04-28 19:54:09,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:09,365 INFO L129 PetriNetUnfolder]: 224/536 cut-off events. [2021-04-28 19:54:09,366 INFO L130 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2021-04-28 19:54:09,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 536 events. 224/536 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3318 event pairs, 137 based on Foata normal form. 3/387 useless extension candidates. Maximal degree in co-relation 1067. Up to 288 conditions per place. [2021-04-28 19:54:09,375 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 9 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2021-04-28 19:54:09,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 173 flow [2021-04-28 19:54:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:09,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 667 transitions. [2021-04-28 19:54:09,381 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6425818882466281 [2021-04-28 19:54:09,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 667 transitions. [2021-04-28 19:54:09,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 667 transitions. [2021-04-28 19:54:09,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:09,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 667 transitions. [2021-04-28 19:54:09,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,389 INFO L185 Difference]: Start difference. First operand has 62 places, 51 transitions, 141 flow. Second operand 3 states and 667 transitions. [2021-04-28 19:54:09,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 173 flow [2021-04-28 19:54:09,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:54:09,392 INFO L241 Difference]: Finished difference. Result has 64 places, 53 transitions, 157 flow [2021-04-28 19:54:09,392 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2021-04-28 19:54:09,393 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -81 predicate places. [2021-04-28 19:54:09,393 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:09,393 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 53 transitions, 157 flow [2021-04-28 19:54:09,393 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 53 transitions, 157 flow [2021-04-28 19:54:09,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 157 flow [2021-04-28 19:54:09,411 INFO L129 PetriNetUnfolder]: 13/106 cut-off events. [2021-04-28 19:54:09,412 INFO L130 PetriNetUnfolder]: For 53/59 co-relation queries the response was YES. [2021-04-28 19:54:09,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 106 events. 13/106 cut-off events. For 53/59 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 545 event pairs, 8 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 183. Up to 21 conditions per place. [2021-04-28 19:54:09,415 INFO L146 LiptonReduction]: Number of co-enabled transitions 1654 [2021-04-28 19:54:09,701 INFO L158 LiptonReduction]: Checked pairs total: 917 [2021-04-28 19:54:09,701 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:09,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 308 [2021-04-28 19:54:09,703 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 157 flow [2021-04-28 19:54:09,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 218.75) internal successors, (875), 4 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:09,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:09,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:54:09,704 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:09,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1867868623, now seen corresponding path program 1 times [2021-04-28 19:54:09,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:09,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146416214] [2021-04-28 19:54:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:09,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:09,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:54:09,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:09,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:54:09,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:09,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 19:54:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:09,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146416214] [2021-04-28 19:54:09,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:09,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:54:09,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019082852] [2021-04-28 19:54:09,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:54:09,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:09,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:54:09,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:54:09,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 346 [2021-04-28 19:54:09,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 218.8) internal successors, (1094), 5 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:09,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:09,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 346 [2021-04-28 19:54:09,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:10,112 INFO L129 PetriNetUnfolder]: 198/456 cut-off events. [2021-04-28 19:54:10,113 INFO L130 PetriNetUnfolder]: For 392/462 co-relation queries the response was YES. [2021-04-28 19:54:10,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1044 conditions, 456 events. 198/456 cut-off events. For 392/462 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2690 event pairs, 67 based on Foata normal form. 11/337 useless extension candidates. Maximal degree in co-relation 1029. Up to 232 conditions per place. [2021-04-28 19:54:10,120 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 11 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2021-04-28 19:54:10,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 58 transitions, 197 flow [2021-04-28 19:54:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:54:10,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:54:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 888 transitions. [2021-04-28 19:54:10,127 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416184971098265 [2021-04-28 19:54:10,127 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 888 transitions. [2021-04-28 19:54:10,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 888 transitions. [2021-04-28 19:54:10,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:10,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 888 transitions. [2021-04-28 19:54:10,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,137 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,137 INFO L185 Difference]: Start difference. First operand has 64 places, 53 transitions, 157 flow. Second operand 4 states and 888 transitions. [2021-04-28 19:54:10,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 58 transitions, 197 flow [2021-04-28 19:54:10,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:54:10,141 INFO L241 Difference]: Finished difference. Result has 67 places, 53 transitions, 166 flow [2021-04-28 19:54:10,142 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2021-04-28 19:54:10,142 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -78 predicate places. [2021-04-28 19:54:10,142 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:10,142 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 53 transitions, 166 flow [2021-04-28 19:54:10,142 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 53 transitions, 166 flow [2021-04-28 19:54:10,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 53 transitions, 166 flow [2021-04-28 19:54:10,160 INFO L129 PetriNetUnfolder]: 12/106 cut-off events. [2021-04-28 19:54:10,160 INFO L130 PetriNetUnfolder]: For 73/82 co-relation queries the response was YES. [2021-04-28 19:54:10,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 106 events. 12/106 cut-off events. For 73/82 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 510 event pairs, 5 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 188. Up to 21 conditions per place. [2021-04-28 19:54:10,164 INFO L146 LiptonReduction]: Number of co-enabled transitions 1652 [2021-04-28 19:54:10,599 INFO L158 LiptonReduction]: Checked pairs total: 917 [2021-04-28 19:54:10,599 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:10,599 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 457 [2021-04-28 19:54:10,601 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 166 flow [2021-04-28 19:54:10,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 218.8) internal successors, (1094), 5 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:10,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:10,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:54:10,602 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:10,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1361177933, now seen corresponding path program 1 times [2021-04-28 19:54:10,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:10,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14982992] [2021-04-28 19:54:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:10,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:10,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:54:10,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:10,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:54:10,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:10,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:54:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:10,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14982992] [2021-04-28 19:54:10,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:10,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:54:10,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862582361] [2021-04-28 19:54:10,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:54:10,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:10,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:54:10,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:54:10,721 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 346 [2021-04-28 19:54:10,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:10,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 346 [2021-04-28 19:54:10,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:10,889 INFO L129 PetriNetUnfolder]: 189/488 cut-off events. [2021-04-28 19:54:10,889 INFO L130 PetriNetUnfolder]: For 554/602 co-relation queries the response was YES. [2021-04-28 19:54:10,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 488 events. 189/488 cut-off events. For 554/602 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3063 event pairs, 106 based on Foata normal form. 4/348 useless extension candidates. Maximal degree in co-relation 1101. Up to 248 conditions per place. [2021-04-28 19:54:10,897 INFO L132 encePairwiseOnDemand]: 341/346 looper letters, 11 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2021-04-28 19:54:10,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 59 transitions, 221 flow [2021-04-28 19:54:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2021-04-28 19:54:10,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6868978805394991 [2021-04-28 19:54:10,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 713 transitions. [2021-04-28 19:54:10,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 713 transitions. [2021-04-28 19:54:10,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:10,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 713 transitions. [2021-04-28 19:54:10,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:10,910 INFO L185 Difference]: Start difference. First operand has 67 places, 53 transitions, 166 flow. Second operand 3 states and 713 transitions. [2021-04-28 19:54:10,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 59 transitions, 221 flow [2021-04-28 19:54:10,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 59 transitions, 210 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 19:54:10,914 INFO L241 Difference]: Finished difference. Result has 68 places, 57 transitions, 197 flow [2021-04-28 19:54:10,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2021-04-28 19:54:10,915 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -77 predicate places. [2021-04-28 19:54:10,915 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:10,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 57 transitions, 197 flow [2021-04-28 19:54:10,915 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 57 transitions, 197 flow [2021-04-28 19:54:10,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 57 transitions, 197 flow [2021-04-28 19:54:10,946 INFO L129 PetriNetUnfolder]: 39/175 cut-off events. [2021-04-28 19:54:10,946 INFO L130 PetriNetUnfolder]: For 223/233 co-relation queries the response was YES. [2021-04-28 19:54:10,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 175 events. 39/175 cut-off events. For 223/233 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 996 event pairs, 20 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 400. Up to 60 conditions per place. [2021-04-28 19:54:10,951 INFO L146 LiptonReduction]: Number of co-enabled transitions 1820 [2021-04-28 19:54:11,217 INFO L158 LiptonReduction]: Checked pairs total: 509 [2021-04-28 19:54:11,218 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:11,218 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 303 [2021-04-28 19:54:11,219 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 197 flow [2021-04-28 19:54:11,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:11,220 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:11,220 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:11,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:54:11,220 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:11,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:11,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1705711927, now seen corresponding path program 1 times [2021-04-28 19:54:11,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:11,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244974407] [2021-04-28 19:54:11,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:11,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:11,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:54:11,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:11,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:54:11,383 INFO L142 QuantifierPusher]: treesize reduction 8, result has 63.6 percent of original size [2021-04-28 19:54:11,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:54:11,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:11,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:54:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:11,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244974407] [2021-04-28 19:54:11,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:11,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:54:11,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770624650] [2021-04-28 19:54:11,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:54:11,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:11,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:54:11,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:54:11,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 346 [2021-04-28 19:54:11,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 220.83333333333334) internal successors, (1325), 6 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:11,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:11,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 346 [2021-04-28 19:54:11,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:11,831 INFO L129 PetriNetUnfolder]: 201/497 cut-off events. [2021-04-28 19:54:11,831 INFO L130 PetriNetUnfolder]: For 999/1131 co-relation queries the response was YES. [2021-04-28 19:54:11,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 497 events. 201/497 cut-off events. For 999/1131 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3059 event pairs, 38 based on Foata normal form. 27/386 useless extension candidates. Maximal degree in co-relation 1274. Up to 201 conditions per place. [2021-04-28 19:54:11,841 INFO L132 encePairwiseOnDemand]: 338/346 looper letters, 13 selfloop transitions, 14 changer transitions 0/70 dead transitions. [2021-04-28 19:54:11,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 70 transitions, 294 flow [2021-04-28 19:54:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:54:11,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:54:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1122 transitions. [2021-04-28 19:54:11,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6485549132947976 [2021-04-28 19:54:11,848 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1122 transitions. [2021-04-28 19:54:11,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1122 transitions. [2021-04-28 19:54:11,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:11,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1122 transitions. [2021-04-28 19:54:11,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.4) internal successors, (1122), 5 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:11,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:11,858 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:11,858 INFO L185 Difference]: Start difference. First operand has 68 places, 57 transitions, 197 flow. Second operand 5 states and 1122 transitions. [2021-04-28 19:54:11,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 70 transitions, 294 flow [2021-04-28 19:54:11,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 70 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:54:11,862 INFO L241 Difference]: Finished difference. Result has 73 places, 65 transitions, 276 flow [2021-04-28 19:54:11,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=276, PETRI_PLACES=73, PETRI_TRANSITIONS=65} [2021-04-28 19:54:11,862 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -72 predicate places. [2021-04-28 19:54:11,862 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:11,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 65 transitions, 276 flow [2021-04-28 19:54:11,863 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 65 transitions, 276 flow [2021-04-28 19:54:11,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 65 transitions, 276 flow [2021-04-28 19:54:11,930 INFO L129 PetriNetUnfolder]: 116/339 cut-off events. [2021-04-28 19:54:11,930 INFO L130 PetriNetUnfolder]: For 660/674 co-relation queries the response was YES. [2021-04-28 19:54:11,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 339 events. 116/339 cut-off events. For 660/674 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2017 event pairs, 28 based on Foata normal form. 3/219 useless extension candidates. Maximal degree in co-relation 1013. Up to 129 conditions per place. [2021-04-28 19:54:11,943 INFO L146 LiptonReduction]: Number of co-enabled transitions 2160 [2021-04-28 19:54:11,992 INFO L158 LiptonReduction]: Checked pairs total: 413 [2021-04-28 19:54:11,993 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:11,993 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-04-28 19:54:11,994 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 65 transitions, 276 flow [2021-04-28 19:54:11,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 220.83333333333334) internal successors, (1325), 6 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:11,995 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:11,995 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:11,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:54:11,995 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:11,996 INFO L82 PathProgramCache]: Analyzing trace with hash 874013784, now seen corresponding path program 1 times [2021-04-28 19:54:11,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:11,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99010646] [2021-04-28 19:54:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:12,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:12,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:54:12,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:12,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:54:12,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:12,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 19:54:12,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:12,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 19:54:12,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:12,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:54:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:12,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99010646] [2021-04-28 19:54:12,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:12,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:54:12,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73909700] [2021-04-28 19:54:12,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:54:12,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:12,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:54:12,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:54:12,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 346 [2021-04-28 19:54:12,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 65 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 205.85714285714286) internal successors, (1441), 7 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:12,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:12,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 346 [2021-04-28 19:54:12,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:12,821 INFO L129 PetriNetUnfolder]: 240/659 cut-off events. [2021-04-28 19:54:12,821 INFO L130 PetriNetUnfolder]: For 1390/2129 co-relation queries the response was YES. [2021-04-28 19:54:12,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 659 events. 240/659 cut-off events. For 1390/2129 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4669 event pairs, 15 based on Foata normal form. 70/540 useless extension candidates. Maximal degree in co-relation 2013. Up to 233 conditions per place. [2021-04-28 19:54:12,835 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 15 selfloop transitions, 21 changer transitions 0/79 dead transitions. [2021-04-28 19:54:12,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 79 transitions, 434 flow [2021-04-28 19:54:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 19:54:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 19:54:12,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1256 transitions. [2021-04-28 19:54:12,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.605009633911368 [2021-04-28 19:54:12,844 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1256 transitions. [2021-04-28 19:54:12,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1256 transitions. [2021-04-28 19:54:12,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:12,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1256 transitions. [2021-04-28 19:54:12,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:12,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:12,856 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:12,856 INFO L185 Difference]: Start difference. First operand has 73 places, 65 transitions, 276 flow. Second operand 6 states and 1256 transitions. [2021-04-28 19:54:12,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 79 transitions, 434 flow [2021-04-28 19:54:12,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 79 transitions, 423 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 19:54:12,861 INFO L241 Difference]: Finished difference. Result has 79 places, 73 transitions, 389 flow [2021-04-28 19:54:12,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=389, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2021-04-28 19:54:12,861 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -66 predicate places. [2021-04-28 19:54:12,861 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:12,861 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 73 transitions, 389 flow [2021-04-28 19:54:12,862 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 73 transitions, 389 flow [2021-04-28 19:54:12,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 73 transitions, 389 flow [2021-04-28 19:54:12,932 INFO L129 PetriNetUnfolder]: 116/363 cut-off events. [2021-04-28 19:54:12,932 INFO L130 PetriNetUnfolder]: For 990/1097 co-relation queries the response was YES. [2021-04-28 19:54:12,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 363 events. 116/363 cut-off events. For 990/1097 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2311 event pairs, 31 based on Foata normal form. 21/261 useless extension candidates. Maximal degree in co-relation 1188. Up to 133 conditions per place. [2021-04-28 19:54:12,947 INFO L146 LiptonReduction]: Number of co-enabled transitions 2460 [2021-04-28 19:54:13,000 INFO L158 LiptonReduction]: Checked pairs total: 608 [2021-04-28 19:54:13,000 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:13,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-04-28 19:54:13,002 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 389 flow [2021-04-28 19:54:13,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 205.85714285714286) internal successors, (1441), 7 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:13,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:13,003 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:13,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 19:54:13,003 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:13,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:13,004 INFO L82 PathProgramCache]: Analyzing trace with hash -453487636, now seen corresponding path program 1 times [2021-04-28 19:54:13,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:13,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319012465] [2021-04-28 19:54:13,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:13,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:13,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:13,126 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:54:13,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:54:13,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:13,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:54:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:13,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319012465] [2021-04-28 19:54:13,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:13,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:54:13,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099703327] [2021-04-28 19:54:13,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:54:13,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:13,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:54:13,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:54:13,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:54:13,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 389 flow. Second operand has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:13,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:13,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:54:13,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:19,137 INFO L129 PetriNetUnfolder]: 28679/43703 cut-off events. [2021-04-28 19:54:19,137 INFO L130 PetriNetUnfolder]: For 19479/53193 co-relation queries the response was YES. [2021-04-28 19:54:19,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95170 conditions, 43703 events. 28679/43703 cut-off events. For 19479/53193 co-relation queries the response was YES. Maximal size of possible extension queue 8898. Compared 407322 event pairs, 14400 based on Foata normal form. 1012/12218 useless extension candidates. Maximal degree in co-relation 95146. Up to 27094 conditions per place. [2021-04-28 19:54:19,580 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 35 selfloop transitions, 33 changer transitions 0/117 dead transitions. [2021-04-28 19:54:19,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 117 transitions, 613 flow [2021-04-28 19:54:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:54:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:54:19,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1361 transitions. [2021-04-28 19:54:19,588 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7867052023121387 [2021-04-28 19:54:19,589 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1361 transitions. [2021-04-28 19:54:19,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1361 transitions. [2021-04-28 19:54:19,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:19,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1361 transitions. [2021-04-28 19:54:19,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 272.2) internal successors, (1361), 5 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:19,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:19,601 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:19,601 INFO L185 Difference]: Start difference. First operand has 79 places, 73 transitions, 389 flow. Second operand 5 states and 1361 transitions. [2021-04-28 19:54:19,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 117 transitions, 613 flow [2021-04-28 19:54:19,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 117 transitions, 593 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-04-28 19:54:19,625 INFO L241 Difference]: Finished difference. Result has 85 places, 104 transitions, 619 flow [2021-04-28 19:54:19,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=619, PETRI_PLACES=85, PETRI_TRANSITIONS=104} [2021-04-28 19:54:19,626 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -60 predicate places. [2021-04-28 19:54:19,626 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:19,627 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 104 transitions, 619 flow [2021-04-28 19:54:19,627 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 104 transitions, 619 flow [2021-04-28 19:54:19,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 104 transitions, 619 flow [2021-04-28 19:54:23,663 INFO L129 PetriNetUnfolder]: 24764/37295 cut-off events. [2021-04-28 19:54:23,664 INFO L130 PetriNetUnfolder]: For 25027/79964 co-relation queries the response was YES. [2021-04-28 19:54:23,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112304 conditions, 37295 events. 24764/37295 cut-off events. For 25027/79964 co-relation queries the response was YES. Maximal size of possible extension queue 6485. Compared 344427 event pairs, 13118 based on Foata normal form. 89/10870 useless extension candidates. Maximal degree in co-relation 112278. Up to 34262 conditions per place. [2021-04-28 19:54:24,309 INFO L146 LiptonReduction]: Number of co-enabled transitions 3728 [2021-04-28 19:54:24,337 INFO L158 LiptonReduction]: Checked pairs total: 758 [2021-04-28 19:54:24,337 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:24,338 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4712 [2021-04-28 19:54:24,339 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 104 transitions, 619 flow [2021-04-28 19:54:24,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:24,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:24,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:24,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 19:54:24,340 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:24,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:24,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1078374657, now seen corresponding path program 1 times [2021-04-28 19:54:24,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:24,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173045241] [2021-04-28 19:54:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:24,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:24,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:24,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:24,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:24,440 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:54:24,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:54:24,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:24,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:54:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:24,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173045241] [2021-04-28 19:54:24,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:24,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:54:24,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631734425] [2021-04-28 19:54:24,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:54:24,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:24,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:54:24,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:54:24,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:54:24,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 104 transitions, 619 flow. Second operand has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:24,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:24,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:54:24,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:30,915 INFO L129 PetriNetUnfolder]: 29858/48557 cut-off events. [2021-04-28 19:54:30,916 INFO L130 PetriNetUnfolder]: For 47588/3445418 co-relation queries the response was YES. [2021-04-28 19:54:31,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190546 conditions, 48557 events. 29858/48557 cut-off events. For 47588/3445418 co-relation queries the response was YES. Maximal size of possible extension queue 11091. Compared 484385 event pairs, 5247 based on Foata normal form. 1284/15193 useless extension candidates. Maximal degree in co-relation 190518. Up to 43565 conditions per place. [2021-04-28 19:54:31,454 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 36 selfloop transitions, 64 changer transitions 0/148 dead transitions. [2021-04-28 19:54:31,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 148 transitions, 1061 flow [2021-04-28 19:54:31,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:54:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:54:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1909 transitions. [2021-04-28 19:54:31,464 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7881915772089183 [2021-04-28 19:54:31,464 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1909 transitions. [2021-04-28 19:54:31,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1909 transitions. [2021-04-28 19:54:31,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:31,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1909 transitions. [2021-04-28 19:54:31,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 272.7142857142857) internal successors, (1909), 7 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:31,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 346.0) internal successors, (2768), 8 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:31,489 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 346.0) internal successors, (2768), 8 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:31,490 INFO L185 Difference]: Start difference. First operand has 85 places, 104 transitions, 619 flow. Second operand 7 states and 1909 transitions. [2021-04-28 19:54:31,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 148 transitions, 1061 flow [2021-04-28 19:54:31,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 148 transitions, 1061 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:54:31,763 INFO L241 Difference]: Finished difference. Result has 94 places, 134 transitions, 1058 flow [2021-04-28 19:54:31,764 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1058, PETRI_PLACES=94, PETRI_TRANSITIONS=134} [2021-04-28 19:54:31,764 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -51 predicate places. [2021-04-28 19:54:31,764 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:31,764 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 134 transitions, 1058 flow [2021-04-28 19:54:31,765 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 134 transitions, 1058 flow [2021-04-28 19:54:31,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 134 transitions, 1058 flow [2021-04-28 19:54:36,383 INFO L129 PetriNetUnfolder]: 26908/43309 cut-off events. [2021-04-28 19:54:36,383 INFO L130 PetriNetUnfolder]: For 167742/385093 co-relation queries the response was YES. [2021-04-28 19:54:36,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207552 conditions, 43309 events. 26908/43309 cut-off events. For 167742/385093 co-relation queries the response was YES. Maximal size of possible extension queue 8294. Compared 434965 event pairs, 5089 based on Foata normal form. 77/12810 useless extension candidates. Maximal degree in co-relation 207521. Up to 40484 conditions per place. [2021-04-28 19:54:37,374 INFO L146 LiptonReduction]: Number of co-enabled transitions 4914 [2021-04-28 19:54:37,408 INFO L158 LiptonReduction]: Checked pairs total: 883 [2021-04-28 19:54:37,408 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:54:37,408 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5644 [2021-04-28 19:54:37,409 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 134 transitions, 1058 flow [2021-04-28 19:54:37,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:37,411 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:54:37,411 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:54:37,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 19:54:37,411 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:54:37,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:54:37,412 INFO L82 PathProgramCache]: Analyzing trace with hash -874651275, now seen corresponding path program 1 times [2021-04-28 19:54:37,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:54:37,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412024542] [2021-04-28 19:54:37,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:54:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:54:37,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:37,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:54:37,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:54:37,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:54:37,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:54:37,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412024542] [2021-04-28 19:54:37,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:54:37,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:54:37,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045932362] [2021-04-28 19:54:37,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:54:37,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:54:37,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:54:37,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:54:37,484 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 346 [2021-04-28 19:54:37,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 134 transitions, 1058 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:37,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:54:37,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 346 [2021-04-28 19:54:37,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:54:47,615 INFO L129 PetriNetUnfolder]: 48775/78053 cut-off events. [2021-04-28 19:54:47,615 INFO L130 PetriNetUnfolder]: For 821094/4853853 co-relation queries the response was YES. [2021-04-28 19:54:48,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374580 conditions, 78053 events. 48775/78053 cut-off events. For 821094/4853853 co-relation queries the response was YES. Maximal size of possible extension queue 17727. Compared 809059 event pairs, 9666 based on Foata normal form. 913/22505 useless extension candidates. Maximal degree in co-relation 374547. Up to 73337 conditions per place. [2021-04-28 19:54:48,475 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 3 selfloop transitions, 3 changer transitions 0/134 dead transitions. [2021-04-28 19:54:48,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 134 transitions, 1070 flow [2021-04-28 19:54:48,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:54:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:54:48,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2021-04-28 19:54:48,483 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7225433526011561 [2021-04-28 19:54:48,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2021-04-28 19:54:48,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2021-04-28 19:54:48,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:54:48,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2021-04-28 19:54:48,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 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) [2021-04-28 19:54:48,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:48,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:54:48,489 INFO L185 Difference]: Start difference. First operand has 94 places, 134 transitions, 1058 flow. Second operand 3 states and 750 transitions. [2021-04-28 19:54:48,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 134 transitions, 1070 flow [2021-04-28 19:54:57,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 134 transitions, 908 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 19:54:57,247 INFO L241 Difference]: Finished difference. Result has 94 places, 134 transitions, 907 flow [2021-04-28 19:54:57,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=94, PETRI_TRANSITIONS=134} [2021-04-28 19:54:57,248 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -51 predicate places. [2021-04-28 19:54:57,248 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:57,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 134 transitions, 907 flow [2021-04-28 19:54:57,249 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 134 transitions, 907 flow [2021-04-28 19:54:57,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 134 transitions, 907 flow [2021-04-28 19:55:05,829 INFO L129 PetriNetUnfolder]: 48199/76869 cut-off events. [2021-04-28 19:55:05,829 INFO L130 PetriNetUnfolder]: For 125368/526335 co-relation queries the response was YES. [2021-04-28 19:55:06,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341356 conditions, 76869 events. 48199/76869 cut-off events. For 125368/526335 co-relation queries the response was YES. Maximal size of possible extension queue 15032. Compared 816448 event pairs, 9547 based on Foata normal form. 126/22339 useless extension candidates. Maximal degree in co-relation 341325. Up to 63808 conditions per place. [2021-04-28 19:55:07,325 INFO L146 LiptonReduction]: Number of co-enabled transitions 4912 [2021-04-28 19:55:07,392 INFO L158 LiptonReduction]: Checked pairs total: 883 [2021-04-28 19:55:07,392 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:55:07,392 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10144 [2021-04-28 19:55:07,394 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 134 transitions, 907 flow [2021-04-28 19:55:07,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:07,394 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:55:07,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:55:07,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 19:55:07,395 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:55:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:55:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1266193735, now seen corresponding path program 1 times [2021-04-28 19:55:07,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:55:07,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716939313] [2021-04-28 19:55:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:55:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:55:07,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:07,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:07,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:07,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:07,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:07,505 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:55:07,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:55:07,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:55:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:55:07,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716939313] [2021-04-28 19:55:07,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:55:07,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:55:07,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326908004] [2021-04-28 19:55:07,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:55:07,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:55:07,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:55:07,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:55:07,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:55:07,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 134 transitions, 907 flow. Second operand has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:07,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:55:07,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:55:07,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:55:20,320 INFO L129 PetriNetUnfolder]: 48403/81350 cut-off events. [2021-04-28 19:55:20,321 INFO L130 PetriNetUnfolder]: For 139881/5905991 co-relation queries the response was YES. [2021-04-28 19:55:20,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433777 conditions, 81350 events. 48403/81350 cut-off events. For 139881/5905991 co-relation queries the response was YES. Maximal size of possible extension queue 19251. Compared 903303 event pairs, 1377 based on Foata normal form. 1905/24658 useless extension candidates. Maximal degree in co-relation 433744. Up to 66520 conditions per place. [2021-04-28 19:55:21,229 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 24 selfloop transitions, 95 changer transitions 12/177 dead transitions. [2021-04-28 19:55:21,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 177 transitions, 1548 flow [2021-04-28 19:55:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 19:55:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 19:55:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2457 transitions. [2021-04-28 19:55:21,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7890173410404624 [2021-04-28 19:55:21,240 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2457 transitions. [2021-04-28 19:55:21,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2457 transitions. [2021-04-28 19:55:21,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:55:21,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2457 transitions. [2021-04-28 19:55:21,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 273.0) internal successors, (2457), 9 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:21,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:21,254 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:21,255 INFO L185 Difference]: Start difference. First operand has 94 places, 134 transitions, 907 flow. Second operand 9 states and 2457 transitions. [2021-04-28 19:55:21,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 177 transitions, 1548 flow [2021-04-28 19:55:29,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 177 transitions, 1522 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-28 19:55:29,719 INFO L241 Difference]: Finished difference. Result has 101 places, 162 transitions, 1441 flow [2021-04-28 19:55:29,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1441, PETRI_PLACES=101, PETRI_TRANSITIONS=162} [2021-04-28 19:55:29,720 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -44 predicate places. [2021-04-28 19:55:29,720 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:55:29,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 162 transitions, 1441 flow [2021-04-28 19:55:29,720 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 162 transitions, 1441 flow [2021-04-28 19:55:29,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 162 transitions, 1441 flow [2021-04-28 19:55:38,354 INFO L129 PetriNetUnfolder]: 35644/64289 cut-off events. [2021-04-28 19:55:38,355 INFO L130 PetriNetUnfolder]: For 572675/1629919 co-relation queries the response was YES. [2021-04-28 19:55:38,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 375093 conditions, 64289 events. 35644/64289 cut-off events. For 572675/1629919 co-relation queries the response was YES. Maximal size of possible extension queue 14150. Compared 789860 event pairs, 1325 based on Foata normal form. 21/16768 useless extension candidates. Maximal degree in co-relation 375060. Up to 51886 conditions per place. [2021-04-28 19:55:39,869 INFO L146 LiptonReduction]: Number of co-enabled transitions 5432 [2021-04-28 19:55:39,969 INFO L158 LiptonReduction]: Checked pairs total: 1027 [2021-04-28 19:55:39,969 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:55:39,970 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10250 [2021-04-28 19:55:39,972 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 162 transitions, 1441 flow [2021-04-28 19:55:39,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:39,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:55:39,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:55:39,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 19:55:39,973 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:55:39,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:55:39,974 INFO L82 PathProgramCache]: Analyzing trace with hash -432990148, now seen corresponding path program 1 times [2021-04-28 19:55:39,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:55:39,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088077914] [2021-04-28 19:55:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:55:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:55:40,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:40,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:40,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:40,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:40,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:40,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:40,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:40,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:55:40,141 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:55:40,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:55:40,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:55:40,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:55:40,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:55:40,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088077914] [2021-04-28 19:55:40,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:55:40,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 19:55:40,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007210313] [2021-04-28 19:55:40,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:55:40,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:55:40,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:55:40,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:55:40,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:55:40,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 162 transitions, 1441 flow. Second operand has 7 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:40,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:55:40,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:55:40,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:55:53,617 INFO L129 PetriNetUnfolder]: 36496/65987 cut-off events. [2021-04-28 19:55:53,617 INFO L130 PetriNetUnfolder]: For 218618/6854053 co-relation queries the response was YES. [2021-04-28 19:55:54,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 443541 conditions, 65987 events. 36496/65987 cut-off events. For 218618/6854053 co-relation queries the response was YES. Maximal size of possible extension queue 16518. Compared 779416 event pairs, 0 based on Foata normal form. 1355/18842 useless extension candidates. Maximal degree in co-relation 443506. Up to 52237 conditions per place. [2021-04-28 19:55:54,864 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 6 selfloop transitions, 113 changer transitions 20/185 dead transitions. [2021-04-28 19:55:54,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 185 transitions, 1929 flow [2021-04-28 19:55:54,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 19:55:54,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 19:55:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2981 transitions. [2021-04-28 19:55:54,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7832369942196532 [2021-04-28 19:55:54,874 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2981 transitions. [2021-04-28 19:55:54,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2981 transitions. [2021-04-28 19:55:54,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:55:54,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2981 transitions. [2021-04-28 19:55:54,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 271.0) internal successors, (2981), 11 states have internal predecessors, (2981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:54,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:54,894 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:55:54,894 INFO L185 Difference]: Start difference. First operand has 101 places, 162 transitions, 1441 flow. Second operand 11 states and 2981 transitions. [2021-04-28 19:55:54,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 185 transitions, 1929 flow [2021-04-28 19:59:22,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 185 transitions, 1572 flow, removed 117 selfloop flow, removed 7 redundant places. [2021-04-28 19:59:22,178 INFO L241 Difference]: Finished difference. Result has 107 places, 162 transitions, 1367 flow [2021-04-28 19:59:22,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1085, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1367, PETRI_PLACES=107, PETRI_TRANSITIONS=162} [2021-04-28 19:59:22,179 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -38 predicate places. [2021-04-28 19:59:22,179 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:59:22,179 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 162 transitions, 1367 flow [2021-04-28 19:59:22,179 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 162 transitions, 1367 flow [2021-04-28 19:59:22,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 162 transitions, 1367 flow [2021-04-28 19:59:26,840 INFO L129 PetriNetUnfolder]: 27181/50600 cut-off events. [2021-04-28 19:59:26,841 INFO L130 PetriNetUnfolder]: For 72024/574929 co-relation queries the response was YES. [2021-04-28 19:59:27,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225756 conditions, 50600 events. 27181/50600 cut-off events. For 72024/574929 co-relation queries the response was YES. Maximal size of possible extension queue 12217. Compared 639490 event pairs, 2 based on Foata normal form. 22/12579 useless extension candidates. Maximal degree in co-relation 225722. Up to 31104 conditions per place. [2021-04-28 19:59:27,898 INFO L146 LiptonReduction]: Number of co-enabled transitions 5338 [2021-04-28 19:59:28,622 INFO L158 LiptonReduction]: Checked pairs total: 1216 [2021-04-28 19:59:28,622 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:59:28,622 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6443 [2021-04-28 19:59:28,623 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 162 transitions, 1367 flow [2021-04-28 19:59:28,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:28,624 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:59:28,624 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:59:28,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 19:59:28,624 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:59:28,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:59:28,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1565472344, now seen corresponding path program 1 times [2021-04-28 19:59:28,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:59:28,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127283024] [2021-04-28 19:59:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:59:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:59:28,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:59:28,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:28,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:28,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:28,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:28,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:59:28,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127283024] [2021-04-28 19:59:28,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:59:28,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:59:28,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643599841] [2021-04-28 19:59:28,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:59:28,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:59:28,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:59:28,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:59:28,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 346 [2021-04-28 19:59:28,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 162 transitions, 1367 flow. Second operand has 4 states, 4 states have (on average 243.0) internal successors, (972), 4 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:28,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:59:28,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 346 [2021-04-28 19:59:28,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:59:41,579 INFO L129 PetriNetUnfolder]: 60825/113369 cut-off events. [2021-04-28 19:59:41,580 INFO L130 PetriNetUnfolder]: For 198078/1525582 co-relation queries the response was YES. [2021-04-28 19:59:42,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 505892 conditions, 113369 events. 60825/113369 cut-off events. For 198078/1525582 co-relation queries the response was YES. Maximal size of possible extension queue 27978. Compared 1483858 event pairs, 0 based on Foata normal form. 125/28689 useless extension candidates. Maximal degree in co-relation 505856. Up to 69120 conditions per place. [2021-04-28 19:59:42,960 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 3 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2021-04-28 19:59:42,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 163 transitions, 1379 flow [2021-04-28 19:59:42,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:59:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:59:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 974 transitions. [2021-04-28 19:59:42,966 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.703757225433526 [2021-04-28 19:59:42,966 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 974 transitions. [2021-04-28 19:59:42,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 974 transitions. [2021-04-28 19:59:42,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:59:42,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 974 transitions. [2021-04-28 19:59:42,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 243.5) internal successors, (974), 4 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:42,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:42,972 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:42,972 INFO L185 Difference]: Start difference. First operand has 105 places, 162 transitions, 1367 flow. Second operand 4 states and 974 transitions. [2021-04-28 19:59:42,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 163 transitions, 1379 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown