/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix050_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:48:13,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:48:13,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:48:13,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:48:13,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:48:13,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:48:13,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:48:13,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:48:13,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:48:13,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:48:13,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:48:13,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:48:13,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:48:13,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:48:13,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:48:13,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:48:13,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:48:13,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:48:13,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:48:13,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:48:13,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:48:13,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:48:13,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:48:13,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:48:13,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:48:13,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:48:13,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:48:13,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:48:13,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:48:13,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:48:13,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:48:13,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:48:13,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:48:13,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:48:13,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:48:13,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:48:13,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:48:13,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:48:13,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:48:13,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:48:13,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:48:13,233 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-RepeatedVariableLbe.epf [2021-03-25 04:48:13,261 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:48:13,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:48:13,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:48:13,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:48:13,262 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:48:13,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:48:13,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:48:13,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:48:13,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:48:13,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:48:13,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:48:13,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:48:13,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:48:13,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:48:13,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:48:13,553 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:48:13,553 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:48:13,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix050_power.opt.i [2021-03-25 04:48:13,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e035702f/8af2153736a74c64a09c9be9b077879e/FLAGf4656761c [2021-03-25 04:48:14,014 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:48:14,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix050_power.opt.i [2021-03-25 04:48:14,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e035702f/8af2153736a74c64a09c9be9b077879e/FLAGf4656761c [2021-03-25 04:48:14,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e035702f/8af2153736a74c64a09c9be9b077879e [2021-03-25 04:48:14,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:48:14,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:48:14,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:48:14,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:48:14,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:48:14,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2443ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14, skipping insertion in model container [2021-03-25 04:48:14,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:48:14,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:48:14,163 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/mix050_power.opt.i[950,963] [2021-03-25 04:48:14,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:48:14,354 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:48:14,362 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/mix050_power.opt.i[950,963] [2021-03-25 04:48:14,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:48:14,450 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:48:14,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14 WrapperNode [2021-03-25 04:48:14,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:48:14,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:48:14,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:48:14,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:48:14,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:48:14,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:48:14,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:48:14,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:48:14,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (1/1) ... [2021-03-25 04:48:14,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:48:14,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:48:14,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:48:14,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:48:14,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (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 [2021-03-25 04:48:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:48:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:48:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:48:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:48:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:48:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:48:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:48:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:48:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:48:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:48:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:48:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:48:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:48:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:48:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:48:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:48:14,690 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:48:16,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:48:16,020 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:48:16,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:48:16 BoogieIcfgContainer [2021-03-25 04:48:16,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:48:16,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:48:16,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:48:16,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:48:16,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:48:14" (1/3) ... [2021-03-25 04:48:16,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b9863b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:48:16, skipping insertion in model container [2021-03-25 04:48:16,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:48:14" (2/3) ... [2021-03-25 04:48:16,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b9863b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:48:16, skipping insertion in model container [2021-03-25 04:48:16,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:48:16" (3/3) ... [2021-03-25 04:48:16,027 INFO L111 eAbstractionObserver]: Analyzing ICFG mix050_power.opt.i [2021-03-25 04:48:16,031 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:48:16,034 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:48:16,034 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,070 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,074 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,075 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,076 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,077 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,078 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,079 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:48:16,093 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:48:16,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:48:16,118 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:48:16,118 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:48:16,118 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:48:16,118 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:48:16,118 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:48:16,118 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:48:16,118 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:48:16,118 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:48:16,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-03-25 04:48:16,152 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-25 04:48:16,152 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:48:16,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 89 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:48:16,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-03-25 04:48:16,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-03-25 04:48:16,160 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:16,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-25 04:48:16,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-25 04:48:16,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-03-25 04:48:16,183 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-25 04:48:16,183 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:48:16,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:48:16,186 INFO L142 LiptonReduction]: Number of co-enabled transitions 2672 [2021-03-25 04:48:17,080 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:48:17,402 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:48:17,507 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:48:18,342 INFO L154 LiptonReduction]: Checked pairs total: 4644 [2021-03-25 04:48:18,343 INFO L156 LiptonReduction]: Total number of compositions: 73 [2021-03-25 04:48:18,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2186 [2021-03-25 04:48:18,353 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-25 04:48:18,353 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:48:18,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:18,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:48:18,354 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:18,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1300694559, now seen corresponding path program 1 times [2021-03-25 04:48:18,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:18,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118997329] [2021-03-25 04:48:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:18,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:18,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:18,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:18,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:18,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118997329] [2021-03-25 04:48:18,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:18,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:48:18,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666004709] [2021-03-25 04:48:18,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:48:18,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:18,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:48:18,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:48:18,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 190 [2021-03-25 04:48:18,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:18,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:18,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 190 [2021-03-25 04:48:18,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:18,698 INFO L129 PetriNetUnfolder]: 133/369 cut-off events. [2021-03-25 04:48:18,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:48:18,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 369 events. 133/369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2083 event pairs, 110 based on Foata normal form. 32/374 useless extension candidates. Maximal degree in co-relation 566. Up to 153 conditions per place. [2021-03-25 04:48:18,703 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 11 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2021-03-25 04:48:18,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 136 flow [2021-03-25 04:48:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:48:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:48:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-25 04:48:18,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9175438596491228 [2021-03-25 04:48:18,717 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-25 04:48:18,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-25 04:48:18,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:18,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-25 04:48:18,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:18,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:18,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:18,730 INFO L185 Difference]: Start difference. First operand has 59 places, 47 transitions, 106 flow. Second operand 3 states and 523 transitions. [2021-03-25 04:48:18,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 136 flow [2021-03-25 04:48:18,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 49 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:48:18,734 INFO L241 Difference]: Finished difference. Result has 55 places, 44 transitions, 100 flow [2021-03-25 04:48:18,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2021-03-25 04:48:18,735 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2021-03-25 04:48:18,735 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:18,735 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 44 transitions, 100 flow [2021-03-25 04:48:18,736 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 44 transitions, 100 flow [2021-03-25 04:48:18,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 44 transitions, 100 flow [2021-03-25 04:48:18,741 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-03-25 04:48:18,741 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:48:18,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:48:18,742 INFO L142 LiptonReduction]: Number of co-enabled transitions 576 [2021-03-25 04:48:19,471 INFO L154 LiptonReduction]: Checked pairs total: 2472 [2021-03-25 04:48:19,472 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-25 04:48:19,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 737 [2021-03-25 04:48:19,472 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 74 flow [2021-03-25 04:48:19,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:19,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:19,473 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] [2021-03-25 04:48:19,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:48:19,473 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:19,473 INFO L82 PathProgramCache]: Analyzing trace with hash 961293898, now seen corresponding path program 1 times [2021-03-25 04:48:19,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:19,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267662324] [2021-03-25 04:48:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:19,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:19,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:19,587 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:48:19,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:48:19,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:19,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:19,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:19,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267662324] [2021-03-25 04:48:19,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:19,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:48:19,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240134551] [2021-03-25 04:48:19,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:48:19,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:19,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:48:19,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:48:19,595 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 203 [2021-03-25 04:48:19,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:19,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:19,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 203 [2021-03-25 04:48:19,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:19,660 INFO L129 PetriNetUnfolder]: 122/251 cut-off events. [2021-03-25 04:48:19,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:48:19,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 251 events. 122/251 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1172 event pairs, 63 based on Foata normal form. 16/231 useless extension candidates. Maximal degree in co-relation 453. Up to 166 conditions per place. [2021-03-25 04:48:19,662 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 6 selfloop transitions, 5 changer transitions 11/45 dead transitions. [2021-03-25 04:48:19,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 146 flow [2021-03-25 04:48:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:48:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:48:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 884 transitions. [2021-03-25 04:48:19,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.870935960591133 [2021-03-25 04:48:19,664 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 884 transitions. [2021-03-25 04:48:19,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 884 transitions. [2021-03-25 04:48:19,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:19,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 884 transitions. [2021-03-25 04:48:19,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.8) internal successors, (884), 5 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:19,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:19,668 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:19,668 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 74 flow. Second operand 5 states and 884 transitions. [2021-03-25 04:48:19,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 146 flow [2021-03-25 04:48:19,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:48:19,669 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 113 flow [2021-03-25 04:48:19,669 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-25 04:48:19,670 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -12 predicate places. [2021-03-25 04:48:19,670 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:19,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 113 flow [2021-03-25 04:48:19,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 113 flow [2021-03-25 04:48:19,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 34 transitions, 113 flow [2021-03-25 04:48:19,683 INFO L129 PetriNetUnfolder]: 73/170 cut-off events. [2021-03-25 04:48:19,683 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-03-25 04:48:19,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 170 events. 73/170 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 725 event pairs, 40 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 393. Up to 104 conditions per place. [2021-03-25 04:48:19,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 480 [2021-03-25 04:48:20,255 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 04:48:20,397 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-25 04:48:20,698 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 04:48:20,837 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-25 04:48:20,841 INFO L154 LiptonReduction]: Checked pairs total: 1389 [2021-03-25 04:48:20,841 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:48:20,841 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1171 [2021-03-25 04:48:20,842 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 109 flow [2021-03-25 04:48:20,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:20,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:20,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:48:20,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:48:20,843 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:20,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:20,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1958758940, now seen corresponding path program 1 times [2021-03-25 04:48:20,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:20,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949265257] [2021-03-25 04:48:20,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:20,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:20,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:20,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:20,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:20,946 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:48:20,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:48:20,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:20,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:20,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949265257] [2021-03-25 04:48:20,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:20,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:48:20,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283031429] [2021-03-25 04:48:20,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:48:20,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:20,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:48:20,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:48:20,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 205 [2021-03-25 04:48:20,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 173.8) internal successors, (869), 5 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:20,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:20,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 205 [2021-03-25 04:48:20,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:21,024 INFO L129 PetriNetUnfolder]: 66/160 cut-off events. [2021-03-25 04:48:21,024 INFO L130 PetriNetUnfolder]: For 100/124 co-relation queries the response was YES. [2021-03-25 04:48:21,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 160 events. 66/160 cut-off events. For 100/124 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 623 event pairs, 14 based on Foata normal form. 22/167 useless extension candidates. Maximal degree in co-relation 503. Up to 108 conditions per place. [2021-03-25 04:48:21,025 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 6 selfloop transitions, 9 changer transitions 9/45 dead transitions. [2021-03-25 04:48:21,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 233 flow [2021-03-25 04:48:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:48:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:48:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1064 transitions. [2021-03-25 04:48:21,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.865040650406504 [2021-03-25 04:48:21,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1064 transitions. [2021-03-25 04:48:21,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1064 transitions. [2021-03-25 04:48:21,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:21,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1064 transitions. [2021-03-25 04:48:21,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,031 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 109 flow. Second operand 6 states and 1064 transitions. [2021-03-25 04:48:21,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 233 flow [2021-03-25 04:48:21,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 226 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:48:21,033 INFO L241 Difference]: Finished difference. Result has 48 places, 36 transitions, 174 flow [2021-03-25 04:48:21,033 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2021-03-25 04:48:21,033 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -11 predicate places. [2021-03-25 04:48:21,033 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:21,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 36 transitions, 174 flow [2021-03-25 04:48:21,033 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 36 transitions, 174 flow [2021-03-25 04:48:21,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 174 flow [2021-03-25 04:48:21,062 INFO L129 PetriNetUnfolder]: 49/128 cut-off events. [2021-03-25 04:48:21,062 INFO L130 PetriNetUnfolder]: For 183/198 co-relation queries the response was YES. [2021-03-25 04:48:21,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 128 events. 49/128 cut-off events. For 183/198 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 496 event pairs, 13 based on Foata normal form. 4/118 useless extension candidates. Maximal degree in co-relation 435. Up to 76 conditions per place. [2021-03-25 04:48:21,063 INFO L142 LiptonReduction]: Number of co-enabled transitions 564 [2021-03-25 04:48:21,076 INFO L154 LiptonReduction]: Checked pairs total: 570 [2021-03-25 04:48:21,076 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:48:21,076 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 04:48:21,077 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 174 flow [2021-03-25 04:48:21,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 173.8) internal successors, (869), 5 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,077 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:21,077 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:48:21,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:48:21,078 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:21,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:21,078 INFO L82 PathProgramCache]: Analyzing trace with hash -205500053, now seen corresponding path program 1 times [2021-03-25 04:48:21,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:21,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674317797] [2021-03-25 04:48:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:21,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,172 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:48:21,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:48:21,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:21,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674317797] [2021-03-25 04:48:21,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:21,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:48:21,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529603036] [2021-03-25 04:48:21,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:48:21,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:21,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:48:21,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:48:21,180 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 205 [2021-03-25 04:48:21,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:21,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 205 [2021-03-25 04:48:21,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:21,249 INFO L129 PetriNetUnfolder]: 36/102 cut-off events. [2021-03-25 04:48:21,249 INFO L130 PetriNetUnfolder]: For 194/248 co-relation queries the response was YES. [2021-03-25 04:48:21,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 102 events. 36/102 cut-off events. For 194/248 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 311 event pairs, 2 based on Foata normal form. 25/119 useless extension candidates. Maximal degree in co-relation 431. Up to 68 conditions per place. [2021-03-25 04:48:21,250 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 6 selfloop transitions, 13 changer transitions 9/49 dead transitions. [2021-03-25 04:48:21,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 356 flow [2021-03-25 04:48:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:48:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:48:21,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1241 transitions. [2021-03-25 04:48:21,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.864808362369338 [2021-03-25 04:48:21,260 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1241 transitions. [2021-03-25 04:48:21,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1241 transitions. [2021-03-25 04:48:21,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:21,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1241 transitions. [2021-03-25 04:48:21,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 177.28571428571428) internal successors, (1241), 7 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 205.0) internal successors, (1640), 8 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,265 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 205.0) internal successors, (1640), 8 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,265 INFO L185 Difference]: Start difference. First operand has 46 places, 36 transitions, 174 flow. Second operand 7 states and 1241 transitions. [2021-03-25 04:48:21,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 356 flow [2021-03-25 04:48:21,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 294 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-25 04:48:21,267 INFO L241 Difference]: Finished difference. Result has 51 places, 40 transitions, 224 flow [2021-03-25 04:48:21,267 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=224, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2021-03-25 04:48:21,267 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -8 predicate places. [2021-03-25 04:48:21,267 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:21,267 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 40 transitions, 224 flow [2021-03-25 04:48:21,268 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 40 transitions, 224 flow [2021-03-25 04:48:21,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 224 flow [2021-03-25 04:48:21,274 INFO L129 PetriNetUnfolder]: 25/80 cut-off events. [2021-03-25 04:48:21,274 INFO L130 PetriNetUnfolder]: For 135/151 co-relation queries the response was YES. [2021-03-25 04:48:21,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 80 events. 25/80 cut-off events. For 135/151 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 216 event pairs, 2 based on Foata normal form. 4/76 useless extension candidates. Maximal degree in co-relation 270. Up to 42 conditions per place. [2021-03-25 04:48:21,274 INFO L142 LiptonReduction]: Number of co-enabled transitions 564 [2021-03-25 04:48:21,277 INFO L154 LiptonReduction]: Checked pairs total: 658 [2021-03-25 04:48:21,277 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:48:21,277 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 04:48:21,277 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 224 flow [2021-03-25 04:48:21,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:21,278 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] [2021-03-25 04:48:21,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:48:21,278 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:21,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:21,278 INFO L82 PathProgramCache]: Analyzing trace with hash 165389404, now seen corresponding path program 1 times [2021-03-25 04:48:21,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:21,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289070741] [2021-03-25 04:48:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:21,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:21,411 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:48:21,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:48:21,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:21,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:21,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289070741] [2021-03-25 04:48:21,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:21,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:48:21,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348723920] [2021-03-25 04:48:21,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:48:21,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:21,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:48:21,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:48:21,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 205 [2021-03-25 04:48:21,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 173.85714285714286) internal successors, (1217), 7 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:21,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 205 [2021-03-25 04:48:21,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:21,522 INFO L129 PetriNetUnfolder]: 20/64 cut-off events. [2021-03-25 04:48:21,522 INFO L130 PetriNetUnfolder]: For 145/199 co-relation queries the response was YES. [2021-03-25 04:48:21,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 64 events. 20/64 cut-off events. For 145/199 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 140 event pairs, 0 based on Foata normal form. 19/79 useless extension candidates. Maximal degree in co-relation 264. Up to 38 conditions per place. [2021-03-25 04:48:21,523 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 2 selfloop transitions, 17 changer transitions 6/45 dead transitions. [2021-03-25 04:48:21,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 45 transitions, 328 flow [2021-03-25 04:48:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:48:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:48:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1410 transitions. [2021-03-25 04:48:21,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8597560975609756 [2021-03-25 04:48:21,525 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1410 transitions. [2021-03-25 04:48:21,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1410 transitions. [2021-03-25 04:48:21,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:21,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1410 transitions. [2021-03-25 04:48:21,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 176.25) internal successors, (1410), 8 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 205.0) internal successors, (1845), 9 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,530 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 205.0) internal successors, (1845), 9 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:21,530 INFO L185 Difference]: Start difference. First operand has 49 places, 40 transitions, 224 flow. Second operand 8 states and 1410 transitions. [2021-03-25 04:48:21,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 45 transitions, 328 flow [2021-03-25 04:48:21,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 266 flow, removed 22 selfloop flow, removed 5 redundant places. [2021-03-25 04:48:21,531 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 216 flow [2021-03-25 04:48:21,532 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=216, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-03-25 04:48:21,532 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2021-03-25 04:48:21,532 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:21,532 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 39 transitions, 216 flow [2021-03-25 04:48:21,532 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 39 transitions, 216 flow [2021-03-25 04:48:21,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 39 transitions, 216 flow [2021-03-25 04:48:21,537 INFO L129 PetriNetUnfolder]: 17/55 cut-off events. [2021-03-25 04:48:21,537 INFO L130 PetriNetUnfolder]: For 75/85 co-relation queries the response was YES. [2021-03-25 04:48:21,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 55 events. 17/55 cut-off events. For 75/85 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 107 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 163. Up to 18 conditions per place. [2021-03-25 04:48:21,537 INFO L142 LiptonReduction]: Number of co-enabled transitions 452 [2021-03-25 04:48:21,640 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:48:21,871 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-25 04:48:21,989 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-25 04:48:22,296 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-25 04:48:22,442 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-25 04:48:22,447 INFO L154 LiptonReduction]: Checked pairs total: 1656 [2021-03-25 04:48:22,447 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:48:22,447 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 915 [2021-03-25 04:48:22,447 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 212 flow [2021-03-25 04:48:22,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 173.85714285714286) internal successors, (1217), 7 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,448 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:22,448 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] [2021-03-25 04:48:22,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:48:22,448 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:22,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1956811182, now seen corresponding path program 1 times [2021-03-25 04:48:22,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:22,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001324068] [2021-03-25 04:48:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:22,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:22,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:22,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:22,542 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:48:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:48:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:22,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001324068] [2021-03-25 04:48:22,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:22,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:48:22,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987552858] [2021-03-25 04:48:22,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:48:22,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:22,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:48:22,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:48:22,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 207 [2021-03-25 04:48:22,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 169.4) internal successors, (847), 5 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:22,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 207 [2021-03-25 04:48:22,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:22,593 INFO L129 PetriNetUnfolder]: 94/227 cut-off events. [2021-03-25 04:48:22,594 INFO L130 PetriNetUnfolder]: For 324/394 co-relation queries the response was YES. [2021-03-25 04:48:22,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 227 events. 94/227 cut-off events. For 324/394 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1183 event pairs, 5 based on Foata normal form. 19/224 useless extension candidates. Maximal degree in co-relation 672. Up to 68 conditions per place. [2021-03-25 04:48:22,595 INFO L132 encePairwiseOnDemand]: 204/207 looper letters, 11 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2021-03-25 04:48:22,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 43 transitions, 250 flow [2021-03-25 04:48:22,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:48:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:48:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 686 transitions. [2021-03-25 04:48:22,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8285024154589372 [2021-03-25 04:48:22,597 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 686 transitions. [2021-03-25 04:48:22,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 686 transitions. [2021-03-25 04:48:22,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:22,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 686 transitions. [2021-03-25 04:48:22,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,600 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,600 INFO L185 Difference]: Start difference. First operand has 49 places, 37 transitions, 212 flow. Second operand 4 states and 686 transitions. [2021-03-25 04:48:22,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 43 transitions, 250 flow [2021-03-25 04:48:22,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 186 flow, removed 19 selfloop flow, removed 7 redundant places. [2021-03-25 04:48:22,604 INFO L241 Difference]: Finished difference. Result has 47 places, 38 transitions, 161 flow [2021-03-25 04:48:22,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2021-03-25 04:48:22,604 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -12 predicate places. [2021-03-25 04:48:22,604 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:22,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 38 transitions, 161 flow [2021-03-25 04:48:22,604 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 38 transitions, 161 flow [2021-03-25 04:48:22,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 161 flow [2021-03-25 04:48:22,610 INFO L129 PetriNetUnfolder]: 33/86 cut-off events. [2021-03-25 04:48:22,610 INFO L130 PetriNetUnfolder]: For 67/68 co-relation queries the response was YES. [2021-03-25 04:48:22,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 86 events. 33/86 cut-off events. For 67/68 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 279 event pairs, 0 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 212. Up to 26 conditions per place. [2021-03-25 04:48:22,611 INFO L142 LiptonReduction]: Number of co-enabled transitions 478 [2021-03-25 04:48:22,613 INFO L154 LiptonReduction]: Checked pairs total: 521 [2021-03-25 04:48:22,613 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:48:22,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 04:48:22,614 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 161 flow [2021-03-25 04:48:22,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 169.4) internal successors, (847), 5 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,615 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:22,615 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] [2021-03-25 04:48:22,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:48:22,615 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:22,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:22,616 INFO L82 PathProgramCache]: Analyzing trace with hash -2014799285, now seen corresponding path program 1 times [2021-03-25 04:48:22,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:22,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94563733] [2021-03-25 04:48:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:22,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:22,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:22,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:22,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94563733] [2021-03-25 04:48:22,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:22,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:48:22,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646226807] [2021-03-25 04:48:22,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:48:22,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:22,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:48:22,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:48:22,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 207 [2021-03-25 04:48:22,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:22,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 207 [2021-03-25 04:48:22,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:22,714 INFO L129 PetriNetUnfolder]: 64/143 cut-off events. [2021-03-25 04:48:22,714 INFO L130 PetriNetUnfolder]: For 175/193 co-relation queries the response was YES. [2021-03-25 04:48:22,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 143 events. 64/143 cut-off events. For 175/193 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 521 event pairs, 0 based on Foata normal form. 5/120 useless extension candidates. Maximal degree in co-relation 370. Up to 50 conditions per place. [2021-03-25 04:48:22,715 INFO L132 encePairwiseOnDemand]: 204/207 looper letters, 3 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2021-03-25 04:48:22,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 173 flow [2021-03-25 04:48:22,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:48:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:48:22,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 714 transitions. [2021-03-25 04:48:22,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8623188405797102 [2021-03-25 04:48:22,716 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 714 transitions. [2021-03-25 04:48:22,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 714 transitions. [2021-03-25 04:48:22,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:22,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 714 transitions. [2021-03-25 04:48:22,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 178.5) internal successors, (714), 4 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,719 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,719 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 161 flow. Second operand 4 states and 714 transitions. [2021-03-25 04:48:22,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 173 flow [2021-03-25 04:48:22,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 39 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:48:22,720 INFO L241 Difference]: Finished difference. Result has 51 places, 39 transitions, 173 flow [2021-03-25 04:48:22,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2021-03-25 04:48:22,720 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -8 predicate places. [2021-03-25 04:48:22,721 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:22,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 39 transitions, 173 flow [2021-03-25 04:48:22,721 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 39 transitions, 173 flow [2021-03-25 04:48:22,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 39 transitions, 173 flow [2021-03-25 04:48:22,729 INFO L129 PetriNetUnfolder]: 64/143 cut-off events. [2021-03-25 04:48:22,730 INFO L130 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2021-03-25 04:48:22,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 143 events. 64/143 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 585 event pairs, 0 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 371. Up to 50 conditions per place. [2021-03-25 04:48:22,731 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 04:48:22,734 INFO L154 LiptonReduction]: Checked pairs total: 471 [2021-03-25 04:48:22,734 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:48:22,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 04:48:22,734 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 173 flow [2021-03-25 04:48:22,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:22,735 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] [2021-03-25 04:48:22,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:48:22,735 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:22,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:22,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2072152607, now seen corresponding path program 2 times [2021-03-25 04:48:22,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:22,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408681449] [2021-03-25 04:48:22,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:22,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:48:22,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:22,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:22,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:22,827 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:48:22,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:48:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:22,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408681449] [2021-03-25 04:48:22,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:22,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:48:22,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649671277] [2021-03-25 04:48:22,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:48:22,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:22,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:48:22,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:48:22,839 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 207 [2021-03-25 04:48:22,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 170.4) internal successors, (852), 5 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:22,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 207 [2021-03-25 04:48:22,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:22,916 INFO L129 PetriNetUnfolder]: 255/580 cut-off events. [2021-03-25 04:48:22,916 INFO L130 PetriNetUnfolder]: For 735/842 co-relation queries the response was YES. [2021-03-25 04:48:22,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 580 events. 255/580 cut-off events. For 735/842 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3772 event pairs, 7 based on Foata normal form. 24/554 useless extension candidates. Maximal degree in co-relation 1554. Up to 166 conditions per place. [2021-03-25 04:48:22,919 INFO L132 encePairwiseOnDemand]: 204/207 looper letters, 8 selfloop transitions, 1 changer transitions 8/47 dead transitions. [2021-03-25 04:48:22,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 239 flow [2021-03-25 04:48:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:48:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:48:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 690 transitions. [2021-03-25 04:48:22,920 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-03-25 04:48:22,920 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 690 transitions. [2021-03-25 04:48:22,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 690 transitions. [2021-03-25 04:48:22,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:22,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 690 transitions. [2021-03-25 04:48:22,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 172.5) internal successors, (690), 4 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,935 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:22,935 INFO L185 Difference]: Start difference. First operand has 51 places, 39 transitions, 173 flow. Second operand 4 states and 690 transitions. [2021-03-25 04:48:22,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 239 flow [2021-03-25 04:48:22,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 47 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:48:22,942 INFO L241 Difference]: Finished difference. Result has 55 places, 38 transitions, 173 flow [2021-03-25 04:48:22,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2021-03-25 04:48:22,942 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2021-03-25 04:48:22,942 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:22,942 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 38 transitions, 173 flow [2021-03-25 04:48:22,942 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 38 transitions, 173 flow [2021-03-25 04:48:22,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 38 transitions, 173 flow [2021-03-25 04:48:22,952 INFO L129 PetriNetUnfolder]: 52/146 cut-off events. [2021-03-25 04:48:22,952 INFO L130 PetriNetUnfolder]: For 122/129 co-relation queries the response was YES. [2021-03-25 04:48:22,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 146 events. 52/146 cut-off events. For 122/129 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 673 event pairs, 0 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 372. Up to 46 conditions per place. [2021-03-25 04:48:22,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-25 04:48:23,066 INFO L154 LiptonReduction]: Checked pairs total: 704 [2021-03-25 04:48:23,066 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:48:23,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-25 04:48:23,068 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 172 flow [2021-03-25 04:48:23,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.4) internal successors, (852), 5 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:23,069 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] [2021-03-25 04:48:23,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:48:23,069 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:23,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:23,070 INFO L82 PathProgramCache]: Analyzing trace with hash 262789653, now seen corresponding path program 3 times [2021-03-25 04:48:23,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:23,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838354872] [2021-03-25 04:48:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:23,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:23,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:23,216 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-25 04:48:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 04:48:23,242 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-25 04:48:23,244 INFO L147 QuantifierPusher]: treesize reduction 9, result has 76.9 percent of original size 30 [2021-03-25 04:48:23,262 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:48:23,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:48:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:23,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838354872] [2021-03-25 04:48:23,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:23,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:48:23,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177016031] [2021-03-25 04:48:23,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:48:23,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:23,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:48:23,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:48:23,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 210 [2021-03-25 04:48:23,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:23,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 210 [2021-03-25 04:48:23,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:23,554 INFO L129 PetriNetUnfolder]: 629/1365 cut-off events. [2021-03-25 04:48:23,554 INFO L130 PetriNetUnfolder]: For 2301/2589 co-relation queries the response was YES. [2021-03-25 04:48:23,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 1365 events. 629/1365 cut-off events. For 2301/2589 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 9900 event pairs, 83 based on Foata normal form. 104/1374 useless extension candidates. Maximal degree in co-relation 3705. Up to 345 conditions per place. [2021-03-25 04:48:23,561 INFO L132 encePairwiseOnDemand]: 200/210 looper letters, 22 selfloop transitions, 8 changer transitions 16/70 dead transitions. [2021-03-25 04:48:23,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 70 transitions, 418 flow [2021-03-25 04:48:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:48:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:48:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1097 transitions. [2021-03-25 04:48:23,563 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7462585034013606 [2021-03-25 04:48:23,563 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1097 transitions. [2021-03-25 04:48:23,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1097 transitions. [2021-03-25 04:48:23,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:23,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1097 transitions. [2021-03-25 04:48:23,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 156.71428571428572) internal successors, (1097), 7 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 210.0) internal successors, (1680), 8 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,567 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 210.0) internal successors, (1680), 8 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,567 INFO L185 Difference]: Start difference. First operand has 51 places, 36 transitions, 172 flow. Second operand 7 states and 1097 transitions. [2021-03-25 04:48:23,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 70 transitions, 418 flow [2021-03-25 04:48:23,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 400 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 04:48:23,585 INFO L241 Difference]: Finished difference. Result has 58 places, 42 transitions, 236 flow [2021-03-25 04:48:23,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=236, PETRI_PLACES=58, PETRI_TRANSITIONS=42} [2021-03-25 04:48:23,585 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2021-03-25 04:48:23,585 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:23,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 42 transitions, 236 flow [2021-03-25 04:48:23,586 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 42 transitions, 236 flow [2021-03-25 04:48:23,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 42 transitions, 236 flow [2021-03-25 04:48:23,658 INFO L129 PetriNetUnfolder]: 410/944 cut-off events. [2021-03-25 04:48:23,658 INFO L130 PetriNetUnfolder]: For 1114/1274 co-relation queries the response was YES. [2021-03-25 04:48:23,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3015 conditions, 944 events. 410/944 cut-off events. For 1114/1274 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6947 event pairs, 126 based on Foata normal form. 15/870 useless extension candidates. Maximal degree in co-relation 2995. Up to 315 conditions per place. [2021-03-25 04:48:23,666 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-25 04:48:23,697 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 04:48:23,697 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:48:23,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 04:48:23,698 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 236 flow [2021-03-25 04:48:23,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,698 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:23,698 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] [2021-03-25 04:48:23,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:48:23,699 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:23,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:23,699 INFO L82 PathProgramCache]: Analyzing trace with hash -664119870, now seen corresponding path program 1 times [2021-03-25 04:48:23,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:23,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008843571] [2021-03-25 04:48:23,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:48:23,815 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-25 04:48:23,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 04:48:23,834 INFO L142 QuantifierPusher]: treesize reduction 20, result has 80.2 percent of original size [2021-03-25 04:48:23,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 04:48:23,872 INFO L142 QuantifierPusher]: treesize reduction 42, result has 72.7 percent of original size [2021-03-25 04:48:23,875 INFO L147 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size 95 [2021-03-25 04:48:23,916 INFO L142 QuantifierPusher]: treesize reduction 29, result has 72.1 percent of original size [2021-03-25 04:48:23,918 INFO L147 QuantifierPusher]: treesize reduction 9, result has 88.0 percent of original size 66 [2021-03-25 04:48:23,956 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-03-25 04:48:23,957 INFO L147 QuantifierPusher]: treesize reduction 9, result has 77.5 percent of original size 31 [2021-03-25 04:48:23,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:48:23,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:48:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:48:23,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008843571] [2021-03-25 04:48:23,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:48:23,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:48:23,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74226910] [2021-03-25 04:48:23,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 04:48:23,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:48:23,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 04:48:23,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-25 04:48:23,987 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 210 [2021-03-25 04:48:23,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:23,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:48:23,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 210 [2021-03-25 04:48:23,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:48:24,241 INFO L129 PetriNetUnfolder]: 522/1184 cut-off events. [2021-03-25 04:48:24,241 INFO L130 PetriNetUnfolder]: For 2103/3143 co-relation queries the response was YES. [2021-03-25 04:48:24,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4164 conditions, 1184 events. 522/1184 cut-off events. For 2103/3143 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 8941 event pairs, 53 based on Foata normal form. 160/1221 useless extension candidates. Maximal degree in co-relation 4142. Up to 365 conditions per place. [2021-03-25 04:48:24,246 INFO L132 encePairwiseOnDemand]: 203/210 looper letters, 7 selfloop transitions, 6 changer transitions 17/57 dead transitions. [2021-03-25 04:48:24,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 404 flow [2021-03-25 04:48:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:48:24,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:48:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 985 transitions. [2021-03-25 04:48:24,248 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7817460317460317 [2021-03-25 04:48:24,248 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 985 transitions. [2021-03-25 04:48:24,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 985 transitions. [2021-03-25 04:48:24,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:48:24,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 985 transitions. [2021-03-25 04:48:24,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.16666666666666) internal successors, (985), 6 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:24,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 210.0) internal successors, (1470), 7 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:24,252 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 210.0) internal successors, (1470), 7 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:24,253 INFO L185 Difference]: Start difference. First operand has 56 places, 42 transitions, 236 flow. Second operand 6 states and 985 transitions. [2021-03-25 04:48:24,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 404 flow [2021-03-25 04:48:24,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 392 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:48:24,268 INFO L241 Difference]: Finished difference. Result has 62 places, 40 transitions, 243 flow [2021-03-25 04:48:24,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=243, PETRI_PLACES=62, PETRI_TRANSITIONS=40} [2021-03-25 04:48:24,269 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2021-03-25 04:48:24,269 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:48:24,269 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 40 transitions, 243 flow [2021-03-25 04:48:24,270 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 40 transitions, 243 flow [2021-03-25 04:48:24,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 40 transitions, 243 flow [2021-03-25 04:48:24,306 INFO L129 PetriNetUnfolder]: 164/438 cut-off events. [2021-03-25 04:48:24,306 INFO L130 PetriNetUnfolder]: For 610/753 co-relation queries the response was YES. [2021-03-25 04:48:24,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 438 events. 164/438 cut-off events. For 610/753 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2793 event pairs, 55 based on Foata normal form. 3/407 useless extension candidates. Maximal degree in co-relation 1506. Up to 163 conditions per place. [2021-03-25 04:48:24,310 INFO L142 LiptonReduction]: Number of co-enabled transitions 336 [2021-03-25 04:48:25,110 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 177 [2021-03-25 04:48:25,369 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-03-25 04:48:26,633 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 302 DAG size of output: 258 [2021-03-25 04:48:27,164 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-03-25 04:48:28,018 WARN L205 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 177 [2021-03-25 04:48:28,245 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-03-25 04:48:29,429 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 302 DAG size of output: 257 [2021-03-25 04:48:29,908 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-03-25 04:48:29,917 INFO L154 LiptonReduction]: Checked pairs total: 36 [2021-03-25 04:48:29,917 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:48:29,918 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5649 [2021-03-25 04:48:29,918 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 247 flow [2021-03-25 04:48:29,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:48:29,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:29,919 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] [2021-03-25 04:48:29,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:48:29,919 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:29,919 INFO L82 PathProgramCache]: Analyzing trace with hash -714900230, now seen corresponding path program 2 times [2021-03-25 04:48:29,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:29,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55789408] [2021-03-25 04:48:29,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:48:29,959 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:48:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:48:30,000 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:48:30,066 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:48:30,066 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:48:30,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:48:30,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:48:30 BasicIcfg [2021-03-25 04:48:30,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:48:30,160 INFO L168 Benchmark]: Toolchain (without parser) took 16120.05 ms. Allocated memory was 255.9 MB in the beginning and 715.1 MB in the end (delta: 459.3 MB). Free memory was 235.1 MB in the beginning and 325.7 MB in the end (delta: -90.7 MB). Peak memory consumption was 368.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:30,160 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:48:30,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.86 ms. Allocated memory was 255.9 MB in the beginning and 419.4 MB in the end (delta: 163.6 MB). Free memory was 235.1 MB in the beginning and 379.1 MB in the end (delta: -144.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:30,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.16 ms. Allocated memory is still 419.4 MB. Free memory was 379.1 MB in the beginning and 376.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:30,165 INFO L168 Benchmark]: Boogie Preprocessor took 44.45 ms. Allocated memory is still 419.4 MB. Free memory was 376.5 MB in the beginning and 373.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:30,165 INFO L168 Benchmark]: RCFGBuilder took 1461.16 ms. Allocated memory is still 419.4 MB. Free memory was 373.9 MB in the beginning and 252.3 MB in the end (delta: 121.5 MB). Peak memory consumption was 125.7 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:30,165 INFO L168 Benchmark]: TraceAbstraction took 14136.31 ms. Allocated memory was 419.4 MB in the beginning and 715.1 MB in the end (delta: 295.7 MB). Free memory was 252.3 MB in the beginning and 325.7 MB in the end (delta: -73.4 MB). Peak memory consumption was 222.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:30,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 411.86 ms. Allocated memory was 255.9 MB in the beginning and 419.4 MB in the end (delta: 163.6 MB). Free memory was 235.1 MB in the beginning and 379.1 MB in the end (delta: -144.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.16 ms. Allocated memory is still 419.4 MB. Free memory was 379.1 MB in the beginning and 376.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 44.45 ms. Allocated memory is still 419.4 MB. Free memory was 376.5 MB in the beginning and 373.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1461.16 ms. Allocated memory is still 419.4 MB. Free memory was 373.9 MB in the beginning and 252.3 MB in the end (delta: 121.5 MB). Peak memory consumption was 125.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14136.31 ms. Allocated memory was 419.4 MB in the beginning and 715.1 MB in the end (delta: 295.7 MB). Free memory was 252.3 MB in the beginning and 325.7 MB in the end (delta: -73.4 MB). Peak memory consumption was 222.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2175.2ms, 124 PlacesBefore, 59 PlacesAfterwards, 113 TransitionsBefore, 47 TransitionsAfterwards, 2672 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 4644 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2311, positive: 2209, positive conditional: 0, positive unconditional: 2209, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1245, positive: 1211, positive conditional: 0, positive unconditional: 1211, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1245, positive: 1211, positive conditional: 0, positive unconditional: 1211, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2311, positive: 998, positive conditional: 0, positive unconditional: 998, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 1245, unknown conditional: 0, unknown unconditional: 1245] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 735.6ms, 55 PlacesBefore, 42 PlacesAfterwards, 44 TransitionsBefore, 31 TransitionsAfterwards, 576 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 2472 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 593, positive: 474, positive conditional: 0, positive unconditional: 474, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 97, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 97, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 593, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 97, unknown conditional: 0, unknown unconditional: 97] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1170.8ms, 47 PlacesBefore, 42 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1389 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 256, positive conditional: 0, positive unconditional: 256, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 163, Positive conditional cache size: 0, Positive unconditional cache size: 163, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.8ms, 48 PlacesBefore, 46 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 564 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4ms, 51 PlacesBefore, 49 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 564 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 658 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 165, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 165, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 192, Positive cache size: 166, Positive conditional cache size: 0, Positive unconditional cache size: 166, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 914.9ms, 54 PlacesBefore, 49 PlacesAfterwards, 39 TransitionsBefore, 37 TransitionsAfterwards, 452 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1656 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 498, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 498, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 47 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 521 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 123, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1ms, 51 PlacesBefore, 51 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 471 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 128, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 128, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 123.4ms, 55 PlacesBefore, 51 PlacesAfterwards, 38 TransitionsBefore, 36 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 704 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 158, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 158, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.8ms, 58 PlacesBefore, 56 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5647.9ms, 62 PlacesBefore, 58 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int a = 0; [L721] 0 _Bool a$flush_delayed; [L722] 0 int a$mem_tmp; [L723] 0 _Bool a$r_buff0_thd0; [L724] 0 _Bool a$r_buff0_thd1; [L725] 0 _Bool a$r_buff0_thd2; [L726] 0 _Bool a$r_buff0_thd3; [L727] 0 _Bool a$r_buff0_thd4; [L728] 0 _Bool a$r_buff1_thd0; [L729] 0 _Bool a$r_buff1_thd1; [L730] 0 _Bool a$r_buff1_thd2; [L731] 0 _Bool a$r_buff1_thd3; [L732] 0 _Bool a$r_buff1_thd4; [L733] 0 _Bool a$read_delayed; [L734] 0 int *a$read_delayed_var; [L735] 0 int a$w_buff0; [L736] 0 _Bool a$w_buff0_used; [L737] 0 int a$w_buff1; [L738] 0 _Bool a$w_buff1_used; [L739] 0 _Bool main$tmp_guard0; [L740] 0 _Bool main$tmp_guard1; [L742] 0 int x = 0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L863] 0 pthread_t t1325; [L864] FCALL, FORK 0 pthread_create(&t1325, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L752] 1 a$w_buff1 = a$w_buff0 [L753] 1 a$w_buff0 = 1 [L754] 1 a$w_buff1_used = a$w_buff0_used [L755] 1 a$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L757] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L758] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L759] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L760] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L761] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L762] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L865] 0 pthread_t t1326; [L866] FCALL, FORK 0 pthread_create(&t1326, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L765] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L782] 2 x = 1 [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L788] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L788] EXPR 2 a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a [L788] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L788] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L789] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L789] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L790] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L790] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L791] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L791] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L792] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 [L792] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 [L867] 0 pthread_t t1327; [L868] FCALL, FORK 0 pthread_create(&t1327, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L802] 3 y = 1 [L805] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L808] EXPR 3 a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L808] EXPR 3 a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a [L808] EXPR 3 a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L808] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L809] EXPR 3 a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L809] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L810] EXPR 3 a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L810] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L811] EXPR 3 a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L811] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L812] EXPR 3 a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 [L812] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 [L869] 0 pthread_t t1328; [L870] FCALL, FORK 0 pthread_create(&t1328, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L822] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L825] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L826] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L827] 4 a$flush_delayed = weak$$choice2 [L828] 4 a$mem_tmp = a [L829] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L829] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L830] EXPR 4 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L830] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0) [L830] EXPR 4 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L830] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L831] EXPR 4 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L831] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1) [L831] EXPR 4 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L831] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L832] EXPR 4 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L832] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used) [L832] EXPR 4 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L832] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L833] EXPR 4 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L833] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0) [L833] EXPR 4 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L833] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] EXPR 4 weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L834] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4) [L834] EXPR 4 weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L834] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L835] EXPR 4 weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L835] EXPR 4 !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0) [L835] EXPR 4 weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L835] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L836] 4 __unbuffered_p3_EAX = a [L837] EXPR 4 a$flush_delayed ? a$mem_tmp : a [L837] 4 a = a$flush_delayed ? a$mem_tmp : a [L838] 4 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L768] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L768] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L769] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L769] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L770] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L770] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L771] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L771] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L772] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 [L772] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 [L775] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 1 return 0; [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L815] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L817] 3 return 0; [L841] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L841] EXPR 4 a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a [L841] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L841] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L842] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L842] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L843] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L843] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L844] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L844] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L845] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 [L845] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 [L848] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L850] 4 return 0; [L872] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L876] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L876] EXPR 0 a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a [L876] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L876] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L877] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L877] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L878] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L878] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L879] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L879] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L880] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L880] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L883] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 116 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 13951.0ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1263.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2229.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 64 SDtfs, 41 SDslu, 60 SDs, 0 SdLazy, 383 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 315.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 361.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=10, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 49.7ms SsaConstructionTime, 499.2ms SatisfiabilityAnalysisTime, 862.9ms InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 1338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...