/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/mix046_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:46:35,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:46:35,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:46:35,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:46:35,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:46:35,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:46:35,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:46:35,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:46:35,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:46:35,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:46:35,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:46:35,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:46:35,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:46:35,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:46:35,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:46:35,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:46:35,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:46:35,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:46:35,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:46:35,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:46:35,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:46:35,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:46:35,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:46:35,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:46:35,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:46:35,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:46:35,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:46:35,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:46:35,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:46:35,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:46:35,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:46:35,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:46:35,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:46:35,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:46:35,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:46:35,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:46:35,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:46:35,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:46:35,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:46:35,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:46:35,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:46:35,283 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 04:46:35,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:46:35,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:46:35,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:46:35,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:46:35,320 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:46:35,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:46:35,320 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:46:35,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:46:35,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:46:35,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:46:35,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:46:35,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:46:35,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:46:35,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:46:35,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:46:35,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:46:35,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:46:35,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:46:35,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:46:35,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:46:35,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:46:35,323 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:46:35,324 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:46:35,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:46:35,324 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:46:35,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:46:35,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:46:35,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:46:35,679 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:46:35,680 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:46:35,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix046_power.opt.i [2021-03-25 04:46:35,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3299e2b95/5f8331886ff64189b9fd0df6b903ffd5/FLAG72c8cb6dd [2021-03-25 04:46:36,281 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:46:36,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix046_power.opt.i [2021-03-25 04:46:36,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3299e2b95/5f8331886ff64189b9fd0df6b903ffd5/FLAG72c8cb6dd [2021-03-25 04:46:36,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3299e2b95/5f8331886ff64189b9fd0df6b903ffd5 [2021-03-25 04:46:36,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:46:36,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:46:36,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:46:36,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:46:36,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:46:36,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:46:36" (1/1) ... [2021-03-25 04:46:36,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681584f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:36, skipping insertion in model container [2021-03-25 04:46:36,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:46:36" (1/1) ... [2021-03-25 04:46:36,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:46:36,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:46:37,002 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/mix046_power.opt.i[950,963] [2021-03-25 04:46:37,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:46:37,235 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:46:37,245 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/mix046_power.opt.i[950,963] [2021-03-25 04:46:37,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:46:37,373 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:46:37,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37 WrapperNode [2021-03-25 04:46:37,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:46:37,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:46:37,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:46:37,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:46:37,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:46:37,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:46:37,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:46:37,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:46:37,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... [2021-03-25 04:46:37,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:46:37,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:46:37,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:46:37,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:46:37,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:46:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:46:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:46:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:46:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:46:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:46:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:46:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:46:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:46:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:46:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:46:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:46:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:46:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:46:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:46:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:46:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:46:37,575 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 04:46:39,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:46:39,306 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:46:39,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:46:39 BoogieIcfgContainer [2021-03-25 04:46:39,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:46:39,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:46:39,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:46:39,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:46:39,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:46:36" (1/3) ... [2021-03-25 04:46:39,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bf8ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:46:39, skipping insertion in model container [2021-03-25 04:46:39,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:37" (2/3) ... [2021-03-25 04:46:39,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bf8ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:46:39, skipping insertion in model container [2021-03-25 04:46:39,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:46:39" (3/3) ... [2021-03-25 04:46:39,313 INFO L111 eAbstractionObserver]: Analyzing ICFG mix046_power.opt.i [2021-03-25 04:46:39,319 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:46:39,323 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:46:39,323 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:46:39,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,361 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,362 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,364 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,366 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,367 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,368 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,370 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,373 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,374 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,374 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,374 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,374 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:39,375 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:46:39,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:46:39,405 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:46:39,406 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:46:39,406 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:46:39,406 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:46:39,406 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:46:39,406 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:46:39,406 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:46:39,406 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:46:39,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-03-25 04:46:39,450 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-25 04:46:39,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:39,453 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 4. Compared 87 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 04:46:39,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-03-25 04:46:39,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-03-25 04:46:39,459 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:39,465 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-25 04:46:39,468 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-25 04:46:39,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-03-25 04:46:39,487 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-25 04:46:39,488 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:39,488 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 4. Compared 82 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 04:46:39,491 INFO L142 LiptonReduction]: Number of co-enabled transitions 2598 [2021-03-25 04:46:40,622 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:46:41,007 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-25 04:46:41,127 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-25 04:46:42,061 WARN L205 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-03-25 04:46:42,350 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-25 04:46:43,830 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-25 04:46:44,382 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:46:45,450 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:46:45,718 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:46:46,325 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:46:46,912 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:46:47,086 INFO L154 LiptonReduction]: Checked pairs total: 4166 [2021-03-25 04:46:47,087 INFO L156 LiptonReduction]: Total number of compositions: 74 [2021-03-25 04:46:47,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7630 [2021-03-25 04:46:47,096 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-25 04:46:47,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:47,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:47,097 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] [2021-03-25 04:46:47,097 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:47,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:47,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1459371111, now seen corresponding path program 1 times [2021-03-25 04:46:47,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:47,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669885895] [2021-03-25 04:46:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:47,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:47,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:47,355 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 04:46:47,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669885895] [2021-03-25 04:46:47,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:47,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:47,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998726323] [2021-03-25 04:46:47,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:47,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:47,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:47,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:47,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 191 [2021-03-25 04:46:47,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 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 04:46:47,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:47,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 191 [2021-03-25 04:46:47,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:47,470 INFO L129 PetriNetUnfolder]: 23/111 cut-off events. [2021-03-25 04:46:47,470 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:47,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 111 events. 23/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 394 event pairs, 3 based on Foata normal form. 6/110 useless extension candidates. Maximal degree in co-relation 148. Up to 37 conditions per place. [2021-03-25 04:46:47,473 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 7 selfloop transitions, 2 changer transitions 5/49 dead transitions. [2021-03-25 04:46:47,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 132 flow [2021-03-25 04:46:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-03-25 04:46:47,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9144851657940664 [2021-03-25 04:46:47,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-03-25 04:46:47,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-03-25 04:46:47,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:47,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-03-25 04:46:47,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 04:46:47,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 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 04:46:47,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 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 04:46:47,510 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 108 flow. Second operand 3 states and 524 transitions. [2021-03-25 04:46:47,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 132 flow [2021-03-25 04:46:47,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 49 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:46:47,514 INFO L241 Difference]: Finished difference. Result has 56 places, 41 transitions, 94 flow [2021-03-25 04:46:47,516 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2021-03-25 04:46:47,517 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2021-03-25 04:46:47,517 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:47,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 41 transitions, 94 flow [2021-03-25 04:46:47,518 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 41 transitions, 94 flow [2021-03-25 04:46:47,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 41 transitions, 94 flow [2021-03-25 04:46:47,530 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-25 04:46:47,530 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:47,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:46:47,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 04:46:47,841 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:46:48,138 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:46:48,750 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-03-25 04:46:49,370 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-03-25 04:46:50,146 INFO L154 LiptonReduction]: Checked pairs total: 1348 [2021-03-25 04:46:50,147 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 04:46:50,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2630 [2021-03-25 04:46:50,148 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 72 flow [2021-03-25 04:46:50,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 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 04:46:50,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:50,148 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 04:46:50,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:46:50,149 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:50,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1826671133, now seen corresponding path program 1 times [2021-03-25 04:46:50,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:50,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742360608] [2021-03-25 04:46:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:50,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:50,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:50,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:50,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:50,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:46:50,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:46:50,313 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 04:46:50,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742360608] [2021-03-25 04:46:50,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:50,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:50,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190791995] [2021-03-25 04:46:50,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:50,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:50,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:50,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:50,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:46:50,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 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 04:46:50,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:50,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:46:50,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:50,330 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-25 04:46:50,331 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:50,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 04:46:50,331 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 1 selfloop transitions, 2 changer transitions 1/30 dead transitions. [2021-03-25 04:46:50,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 30 transitions, 78 flow [2021-03-25 04:46:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2021-03-25 04:46:50,333 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8927392739273927 [2021-03-25 04:46:50,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2021-03-25 04:46:50,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2021-03-25 04:46:50,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:50,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2021-03-25 04:46:50,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 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 04:46:50,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 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 04:46:50,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 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 04:46:50,337 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 72 flow. Second operand 3 states and 541 transitions. [2021-03-25 04:46:50,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 30 transitions, 78 flow [2021-03-25 04:46:50,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:50,338 INFO L241 Difference]: Finished difference. Result has 42 places, 29 transitions, 74 flow [2021-03-25 04:46:50,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2021-03-25 04:46:50,339 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2021-03-25 04:46:50,339 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:50,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 29 transitions, 74 flow [2021-03-25 04:46:50,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 29 transitions, 74 flow [2021-03-25 04:46:50,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 74 flow [2021-03-25 04:46:50,343 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-03-25 04:46:50,343 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:50,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 04:46:50,344 INFO L142 LiptonReduction]: Number of co-enabled transitions 328 [2021-03-25 04:46:51,332 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 04:46:51,510 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-25 04:46:51,836 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 04:46:51,980 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-25 04:46:51,983 INFO L154 LiptonReduction]: Checked pairs total: 1088 [2021-03-25 04:46:51,983 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:46:51,984 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1645 [2021-03-25 04:46:51,984 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 66 flow [2021-03-25 04:46:51,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 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 04:46:51,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:51,985 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:51,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:46:51,985 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:51,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:51,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1551181553, now seen corresponding path program 1 times [2021-03-25 04:46:51,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:51,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843396126] [2021-03-25 04:46:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:52,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:52,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:52,049 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 04:46:52,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843396126] [2021-03-25 04:46:52,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:52,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:52,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548311180] [2021-03-25 04:46:52,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:52,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:52,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:52,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:52,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 206 [2021-03-25 04:46:52,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 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 04:46:52,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:52,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 206 [2021-03-25 04:46:52,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:52,066 INFO L129 PetriNetUnfolder]: 3/37 cut-off events. [2021-03-25 04:46:52,066 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 04:46:52,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 37 events. 3/37 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 74 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 55. Up to 10 conditions per place. [2021-03-25 04:46:52,067 INFO L132 encePairwiseOnDemand]: 202/206 looper letters, 3 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-25 04:46:52,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 82 flow [2021-03-25 04:46:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:52,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:52,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2021-03-25 04:46:52,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9142394822006472 [2021-03-25 04:46:52,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2021-03-25 04:46:52,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2021-03-25 04:46:52,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:52,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2021-03-25 04:46:52,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 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 04:46:52,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 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 04:46:52,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 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 04:46:52,073 INFO L185 Difference]: Start difference. First operand has 37 places, 25 transitions, 66 flow. Second operand 3 states and 565 transitions. [2021-03-25 04:46:52,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 82 flow [2021-03-25 04:46:52,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:52,074 INFO L241 Difference]: Finished difference. Result has 38 places, 27 transitions, 81 flow [2021-03-25 04:46:52,074 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2021-03-25 04:46:52,074 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2021-03-25 04:46:52,074 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:52,074 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 27 transitions, 81 flow [2021-03-25 04:46:52,074 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 27 transitions, 81 flow [2021-03-25 04:46:52,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 27 transitions, 81 flow [2021-03-25 04:46:52,079 INFO L129 PetriNetUnfolder]: 3/33 cut-off events. [2021-03-25 04:46:52,079 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:46:52,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 33 events. 3/33 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 70 event pairs, 1 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 52. Up to 10 conditions per place. [2021-03-25 04:46:52,080 INFO L142 LiptonReduction]: Number of co-enabled transitions 342 [2021-03-25 04:46:52,082 INFO L154 LiptonReduction]: Checked pairs total: 319 [2021-03-25 04:46:52,082 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:52,082 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 04:46:52,083 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 81 flow [2021-03-25 04:46:52,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 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 04:46:52,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:52,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:52,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:46:52,084 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:52,084 INFO L82 PathProgramCache]: Analyzing trace with hash -627308890, now seen corresponding path program 1 times [2021-03-25 04:46:52,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:52,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287020980] [2021-03-25 04:46:52,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:52,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:52,206 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-25 04:46:52,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 04:46:52,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:52,228 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 04:46:52,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287020980] [2021-03-25 04:46:52,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:52,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:52,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601604638] [2021-03-25 04:46:52,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:52,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:52,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:52,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:52,232 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 206 [2021-03-25 04:46:52,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 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 04:46:52,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:52,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 206 [2021-03-25 04:46:52,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:52,321 INFO L129 PetriNetUnfolder]: 47/127 cut-off events. [2021-03-25 04:46:52,321 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-03-25 04:46:52,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 127 events. 47/127 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 506 event pairs, 27 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 255. Up to 77 conditions per place. [2021-03-25 04:46:52,328 INFO L132 encePairwiseOnDemand]: 201/206 looper letters, 8 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2021-03-25 04:46:52,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 120 flow [2021-03-25 04:46:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:52,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 678 transitions. [2021-03-25 04:46:52,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8228155339805825 [2021-03-25 04:46:52,331 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 678 transitions. [2021-03-25 04:46:52,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 678 transitions. [2021-03-25 04:46:52,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:52,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 678 transitions. [2021-03-25 04:46:52,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 0 states have call successors, (0), 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 04:46:52,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 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 04:46:52,336 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 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 04:46:52,336 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 81 flow. Second operand 4 states and 678 transitions. [2021-03-25 04:46:52,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 120 flow [2021-03-25 04:46:52,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 117 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:52,338 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 111 flow [2021-03-25 04:46:52,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-03-25 04:46:52,338 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2021-03-25 04:46:52,339 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:52,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 111 flow [2021-03-25 04:46:52,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 111 flow [2021-03-25 04:46:52,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 31 transitions, 111 flow [2021-03-25 04:46:52,346 INFO L129 PetriNetUnfolder]: 6/46 cut-off events. [2021-03-25 04:46:52,346 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-25 04:46:52,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 46 events. 6/46 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 114 event pairs, 2 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 86. Up to 13 conditions per place. [2021-03-25 04:46:52,347 INFO L142 LiptonReduction]: Number of co-enabled transitions 400 [2021-03-25 04:46:52,349 INFO L154 LiptonReduction]: Checked pairs total: 321 [2021-03-25 04:46:52,349 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:52,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 04:46:52,352 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 111 flow [2021-03-25 04:46:52,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 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 04:46:52,353 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:52,353 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:52,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:46:52,353 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:52,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:52,353 INFO L82 PathProgramCache]: Analyzing trace with hash -185875824, now seen corresponding path program 1 times [2021-03-25 04:46:52,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:52,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205873299] [2021-03-25 04:46:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:52,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:52,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:52,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:52,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:52,474 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 04:46:52,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205873299] [2021-03-25 04:46:52,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:52,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:52,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228509762] [2021-03-25 04:46:52,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:52,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:52,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:52,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:52,477 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 206 [2021-03-25 04:46:52,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 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 04:46:52,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:52,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 206 [2021-03-25 04:46:52,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:52,556 INFO L129 PetriNetUnfolder]: 55/148 cut-off events. [2021-03-25 04:46:52,556 INFO L130 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2021-03-25 04:46:52,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 148 events. 55/148 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 673 event pairs, 1 based on Foata normal form. 4/145 useless extension candidates. Maximal degree in co-relation 359. Up to 72 conditions per place. [2021-03-25 04:46:52,558 INFO L132 encePairwiseOnDemand]: 200/206 looper letters, 11 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2021-03-25 04:46:52,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 159 flow [2021-03-25 04:46:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 826 transitions. [2021-03-25 04:46:52,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8019417475728156 [2021-03-25 04:46:52,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 826 transitions. [2021-03-25 04:46:52,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 826 transitions. [2021-03-25 04:46:52,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:52,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 826 transitions. [2021-03-25 04:46:52,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.2) internal successors, (826), 5 states have internal predecessors, (826), 0 states have call successors, (0), 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 04:46:52,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 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 04:46:52,566 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 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 04:46:52,566 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 111 flow. Second operand 5 states and 826 transitions. [2021-03-25 04:46:52,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 159 flow [2021-03-25 04:46:52,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 159 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:46:52,568 INFO L241 Difference]: Finished difference. Result has 47 places, 33 transitions, 138 flow [2021-03-25 04:46:52,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=138, PETRI_PLACES=47, PETRI_TRANSITIONS=33} [2021-03-25 04:46:52,568 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2021-03-25 04:46:52,568 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:52,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 33 transitions, 138 flow [2021-03-25 04:46:52,569 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 33 transitions, 138 flow [2021-03-25 04:46:52,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 33 transitions, 138 flow [2021-03-25 04:46:52,577 INFO L129 PetriNetUnfolder]: 15/66 cut-off events. [2021-03-25 04:46:52,578 INFO L130 PetriNetUnfolder]: For 53/54 co-relation queries the response was YES. [2021-03-25 04:46:52,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 66 events. 15/66 cut-off events. For 53/54 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 210 event pairs, 5 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 155. Up to 23 conditions per place. [2021-03-25 04:46:52,579 INFO L142 LiptonReduction]: Number of co-enabled transitions 430 [2021-03-25 04:46:52,581 INFO L154 LiptonReduction]: Checked pairs total: 305 [2021-03-25 04:46:52,581 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:52,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 04:46:52,582 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 33 transitions, 138 flow [2021-03-25 04:46:52,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 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 04:46:52,583 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:52,583 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:52,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:46:52,583 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:52,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1572456572, now seen corresponding path program 2 times [2021-03-25 04:46:52,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:52,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822863305] [2021-03-25 04:46:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:52,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:52,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:52,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:52,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 04:46:52,685 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 04:46:52,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822863305] [2021-03-25 04:46:52,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:52,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:52,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151346887] [2021-03-25 04:46:52,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:52,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:52,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:52,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:52,688 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:52,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 33 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 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 04:46:52,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:52,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:52,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:52,782 INFO L129 PetriNetUnfolder]: 52/149 cut-off events. [2021-03-25 04:46:52,782 INFO L130 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2021-03-25 04:46:52,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 149 events. 52/149 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 673 event pairs, 15 based on Foata normal form. 4/146 useless extension candidates. Maximal degree in co-relation 430. Up to 73 conditions per place. [2021-03-25 04:46:52,784 INFO L132 encePairwiseOnDemand]: 201/206 looper letters, 10 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2021-03-25 04:46:52,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 201 flow [2021-03-25 04:46:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 696 transitions. [2021-03-25 04:46:52,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8446601941747572 [2021-03-25 04:46:52,788 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 696 transitions. [2021-03-25 04:46:52,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 696 transitions. [2021-03-25 04:46:52,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:52,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 696 transitions. [2021-03-25 04:46:52,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 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 04:46:52,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 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 04:46:52,794 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 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 04:46:52,794 INFO L185 Difference]: Start difference. First operand has 47 places, 33 transitions, 138 flow. Second operand 4 states and 696 transitions. [2021-03-25 04:46:52,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 201 flow [2021-03-25 04:46:52,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 182 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:52,798 INFO L241 Difference]: Finished difference. Result has 48 places, 36 transitions, 169 flow [2021-03-25 04:46:52,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2021-03-25 04:46:52,799 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -12 predicate places. [2021-03-25 04:46:52,799 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:52,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 36 transitions, 169 flow [2021-03-25 04:46:52,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 36 transitions, 169 flow [2021-03-25 04:46:52,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 36 transitions, 169 flow [2021-03-25 04:46:52,812 INFO L129 PetriNetUnfolder]: 14/66 cut-off events. [2021-03-25 04:46:52,812 INFO L130 PetriNetUnfolder]: For 66/68 co-relation queries the response was YES. [2021-03-25 04:46:52,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 66 events. 14/66 cut-off events. For 66/68 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 222 event pairs, 5 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 176. Up to 22 conditions per place. [2021-03-25 04:46:52,813 INFO L142 LiptonReduction]: Number of co-enabled transitions 478 [2021-03-25 04:46:52,817 INFO L154 LiptonReduction]: Checked pairs total: 409 [2021-03-25 04:46:52,817 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:52,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 04:46:52,820 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 169 flow [2021-03-25 04:46:52,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 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 04:46:52,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:52,820 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:52,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:46:52,821 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:52,821 INFO L82 PathProgramCache]: Analyzing trace with hash 941023509, now seen corresponding path program 1 times [2021-03-25 04:46:52,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:52,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083665014] [2021-03-25 04:46:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:52,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:52,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:52,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:52,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:52,964 INFO L142 QuantifierPusher]: treesize reduction 17, result has 50.0 percent of original size [2021-03-25 04:46:52,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:46:52,979 INFO L142 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size [2021-03-25 04:46:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 04:46:52,998 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 04:46:52,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083665014] [2021-03-25 04:46:52,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:52,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:52,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664317183] [2021-03-25 04:46:53,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:53,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:53,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:53,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:53,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 206 [2021-03-25 04:46:53,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 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 04:46:53,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:53,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 206 [2021-03-25 04:46:53,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:53,121 INFO L129 PetriNetUnfolder]: 54/159 cut-off events. [2021-03-25 04:46:53,121 INFO L130 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2021-03-25 04:46:53,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 159 events. 54/159 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 758 event pairs, 3 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 513. Up to 80 conditions per place. [2021-03-25 04:46:53,124 INFO L132 encePairwiseOnDemand]: 200/206 looper letters, 14 selfloop transitions, 9 changer transitions 0/43 dead transitions. [2021-03-25 04:46:53,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 244 flow [2021-03-25 04:46:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:46:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:46:53,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 990 transitions. [2021-03-25 04:46:53,127 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8009708737864077 [2021-03-25 04:46:53,127 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 990 transitions. [2021-03-25 04:46:53,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 990 transitions. [2021-03-25 04:46:53,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:53,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 990 transitions. [2021-03-25 04:46:53,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 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 04:46:53,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 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 04:46:53,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 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 04:46:53,132 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 169 flow. Second operand 6 states and 990 transitions. [2021-03-25 04:46:53,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 244 flow [2021-03-25 04:46:53,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 232 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:53,136 INFO L241 Difference]: Finished difference. Result has 53 places, 39 transitions, 207 flow [2021-03-25 04:46:53,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2021-03-25 04:46:53,136 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2021-03-25 04:46:53,136 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:53,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 39 transitions, 207 flow [2021-03-25 04:46:53,137 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 39 transitions, 207 flow [2021-03-25 04:46:53,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 39 transitions, 207 flow [2021-03-25 04:46:53,148 INFO L129 PetriNetUnfolder]: 14/68 cut-off events. [2021-03-25 04:46:53,148 INFO L130 PetriNetUnfolder]: For 100/103 co-relation queries the response was YES. [2021-03-25 04:46:53,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 68 events. 14/68 cut-off events. For 100/103 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 238 event pairs, 5 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 198. Up to 23 conditions per place. [2021-03-25 04:46:53,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 528 [2021-03-25 04:46:53,153 INFO L154 LiptonReduction]: Checked pairs total: 501 [2021-03-25 04:46:53,154 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:53,154 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 04:46:53,158 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 207 flow [2021-03-25 04:46:53,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 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 04:46:53,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:53,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:53,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:46:53,159 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:53,160 INFO L82 PathProgramCache]: Analyzing trace with hash 944165979, now seen corresponding path program 2 times [2021-03-25 04:46:53,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:53,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525446284] [2021-03-25 04:46:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:53,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:53,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:53,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:53,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:46:53,308 INFO L142 QuantifierPusher]: treesize reduction 26, result has 56.7 percent of original size [2021-03-25 04:46:53,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 04:46:53,333 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 04:46:53,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525446284] [2021-03-25 04:46:53,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:53,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:53,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263817528] [2021-03-25 04:46:53,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:53,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:53,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:53,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:53,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 206 [2021-03-25 04:46:53,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 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 04:46:53,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:53,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 206 [2021-03-25 04:46:53,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:53,447 INFO L129 PetriNetUnfolder]: 47/162 cut-off events. [2021-03-25 04:46:53,447 INFO L130 PetriNetUnfolder]: For 279/279 co-relation queries the response was YES. [2021-03-25 04:46:53,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 162 events. 47/162 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 827 event pairs, 3 based on Foata normal form. 4/159 useless extension candidates. Maximal degree in co-relation 530. Up to 52 conditions per place. [2021-03-25 04:46:53,449 INFO L132 encePairwiseOnDemand]: 201/206 looper letters, 10 selfloop transitions, 12 changer transitions 0/42 dead transitions. [2021-03-25 04:46:53,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 42 transitions, 257 flow [2021-03-25 04:46:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:46:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:46:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2021-03-25 04:46:53,452 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7896440129449838 [2021-03-25 04:46:53,452 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2021-03-25 04:46:53,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2021-03-25 04:46:53,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:53,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2021-03-25 04:46:53,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:53,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 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 04:46:53,458 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 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 04:46:53,458 INFO L185 Difference]: Start difference. First operand has 53 places, 39 transitions, 207 flow. Second operand 6 states and 976 transitions. [2021-03-25 04:46:53,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 42 transitions, 257 flow [2021-03-25 04:46:53,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 42 transitions, 244 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:53,463 INFO L241 Difference]: Finished difference. Result has 58 places, 39 transitions, 229 flow [2021-03-25 04:46:53,464 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2021-03-25 04:46:53,464 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2021-03-25 04:46:53,464 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:53,464 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 39 transitions, 229 flow [2021-03-25 04:46:53,464 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 39 transitions, 229 flow [2021-03-25 04:46:53,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 39 transitions, 229 flow [2021-03-25 04:46:53,475 INFO L129 PetriNetUnfolder]: 10/65 cut-off events. [2021-03-25 04:46:53,475 INFO L130 PetriNetUnfolder]: For 142/145 co-relation queries the response was YES. [2021-03-25 04:46:53,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 65 events. 10/65 cut-off events. For 142/145 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 218 event pairs, 4 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 194. Up to 19 conditions per place. [2021-03-25 04:46:53,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 526 [2021-03-25 04:46:53,479 INFO L154 LiptonReduction]: Checked pairs total: 477 [2021-03-25 04:46:53,480 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:53,480 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 04:46:53,482 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 229 flow [2021-03-25 04:46:53,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 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 04:46:53,482 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:53,482 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:53,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:46:53,483 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:53,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1500212899, now seen corresponding path program 1 times [2021-03-25 04:46:53,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:53,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616497371] [2021-03-25 04:46:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:53,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:53,543 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:53,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:53,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:53,551 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 04:46:53,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616497371] [2021-03-25 04:46:53,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:53,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:53,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365487504] [2021-03-25 04:46:53,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:53,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:53,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:53,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:53,557 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:53,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 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 04:46:53,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:53,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:53,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:53,665 INFO L129 PetriNetUnfolder]: 358/701 cut-off events. [2021-03-25 04:46:53,666 INFO L130 PetriNetUnfolder]: For 1076/1164 co-relation queries the response was YES. [2021-03-25 04:46:53,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 701 events. 358/701 cut-off events. For 1076/1164 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 4666 event pairs, 161 based on Foata normal form. 58/646 useless extension candidates. Maximal degree in co-relation 1817. Up to 438 conditions per place. [2021-03-25 04:46:53,672 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 10 selfloop transitions, 10 changer transitions 0/52 dead transitions. [2021-03-25 04:46:53,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 52 transitions, 295 flow [2021-03-25 04:46:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 877 transitions. [2021-03-25 04:46:53,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8514563106796117 [2021-03-25 04:46:53,676 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 877 transitions. [2021-03-25 04:46:53,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 877 transitions. [2021-03-25 04:46:53,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:53,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 877 transitions. [2021-03-25 04:46:53,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.4) internal successors, (877), 5 states have internal predecessors, (877), 0 states have call successors, (0), 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 04:46:53,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 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 04:46:53,680 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 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 04:46:53,681 INFO L185 Difference]: Start difference. First operand has 58 places, 39 transitions, 229 flow. Second operand 5 states and 877 transitions. [2021-03-25 04:46:53,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 52 transitions, 295 flow [2021-03-25 04:46:53,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 52 transitions, 284 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:53,685 INFO L241 Difference]: Finished difference. Result has 62 places, 48 transitions, 293 flow [2021-03-25 04:46:53,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=293, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2021-03-25 04:46:53,685 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2021-03-25 04:46:53,685 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:53,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 48 transitions, 293 flow [2021-03-25 04:46:53,685 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 48 transitions, 293 flow [2021-03-25 04:46:53,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 48 transitions, 293 flow [2021-03-25 04:46:53,744 INFO L129 PetriNetUnfolder]: 317/590 cut-off events. [2021-03-25 04:46:53,745 INFO L130 PetriNetUnfolder]: For 1074/1313 co-relation queries the response was YES. [2021-03-25 04:46:53,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1937 conditions, 590 events. 317/590 cut-off events. For 1074/1313 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 3576 event pairs, 156 based on Foata normal form. 5/496 useless extension candidates. Maximal degree in co-relation 1915. Up to 415 conditions per place. [2021-03-25 04:46:53,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 810 [2021-03-25 04:46:53,777 INFO L154 LiptonReduction]: Checked pairs total: 780 [2021-03-25 04:46:53,778 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:46:53,778 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-25 04:46:53,778 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 47 transitions, 287 flow [2021-03-25 04:46:53,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 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 04:46:53,779 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:53,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:53,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:46:53,780 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:53,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:53,781 INFO L82 PathProgramCache]: Analyzing trace with hash 813086243, now seen corresponding path program 1 times [2021-03-25 04:46:53,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:53,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48639031] [2021-03-25 04:46:53,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:53,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:53,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:53,865 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:53,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:53,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:53,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:53,874 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 04:46:53,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48639031] [2021-03-25 04:46:53,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:53,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:53,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202626060] [2021-03-25 04:46:53,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:53,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:53,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:53,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:53,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:53,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 47 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 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 04:46:53,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:53,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:53,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:53,985 INFO L129 PetriNetUnfolder]: 235/512 cut-off events. [2021-03-25 04:46:53,985 INFO L130 PetriNetUnfolder]: For 1042/2069 co-relation queries the response was YES. [2021-03-25 04:46:53,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2042 conditions, 512 events. 235/512 cut-off events. For 1042/2069 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3136 event pairs, 43 based on Foata normal form. 105/563 useless extension candidates. Maximal degree in co-relation 2018. Up to 367 conditions per place. [2021-03-25 04:46:53,991 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 10 selfloop transitions, 14 changer transitions 0/56 dead transitions. [2021-03-25 04:46:53,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 56 transitions, 387 flow [2021-03-25 04:46:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:46:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:46:53,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1052 transitions. [2021-03-25 04:46:53,994 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8511326860841424 [2021-03-25 04:46:53,994 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1052 transitions. [2021-03-25 04:46:53,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1052 transitions. [2021-03-25 04:46:53,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:53,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1052 transitions. [2021-03-25 04:46:53,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 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 04:46:53,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 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 04:46:54,000 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 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 04:46:54,000 INFO L185 Difference]: Start difference. First operand has 62 places, 47 transitions, 287 flow. Second operand 6 states and 1052 transitions. [2021-03-25 04:46:54,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 56 transitions, 387 flow [2021-03-25 04:46:54,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 56 transitions, 380 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:54,007 INFO L241 Difference]: Finished difference. Result has 66 places, 52 transitions, 376 flow [2021-03-25 04:46:54,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-03-25 04:46:54,008 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places. [2021-03-25 04:46:54,008 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:54,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 52 transitions, 376 flow [2021-03-25 04:46:54,008 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 52 transitions, 376 flow [2021-03-25 04:46:54,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 52 transitions, 376 flow [2021-03-25 04:46:54,056 INFO L129 PetriNetUnfolder]: 215/438 cut-off events. [2021-03-25 04:46:54,057 INFO L130 PetriNetUnfolder]: For 1451/1724 co-relation queries the response was YES. [2021-03-25 04:46:54,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 438 events. 215/438 cut-off events. For 1451/1724 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 2557 event pairs, 46 based on Foata normal form. 10/395 useless extension candidates. Maximal degree in co-relation 2002. Up to 321 conditions per place. [2021-03-25 04:46:54,064 INFO L142 LiptonReduction]: Number of co-enabled transitions 900 [2021-03-25 04:46:54,088 INFO L154 LiptonReduction]: Checked pairs total: 765 [2021-03-25 04:46:54,088 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:46:54,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 04:46:54,090 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 368 flow [2021-03-25 04:46:54,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 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 04:46:54,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:54,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:54,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:46:54,091 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:54,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:54,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1539565271, now seen corresponding path program 1 times [2021-03-25 04:46:54,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:54,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294009510] [2021-03-25 04:46:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:54,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:54,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:54,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:54,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:54,163 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 04:46:54,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294009510] [2021-03-25 04:46:54,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:54,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:54,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634932647] [2021-03-25 04:46:54,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:54,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:54,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:54,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:54,165 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 206 [2021-03-25 04:46:54,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 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 04:46:54,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:54,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 206 [2021-03-25 04:46:54,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:54,235 INFO L129 PetriNetUnfolder]: 273/563 cut-off events. [2021-03-25 04:46:54,235 INFO L130 PetriNetUnfolder]: For 2657/3467 co-relation queries the response was YES. [2021-03-25 04:46:54,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 563 events. 273/563 cut-off events. For 2657/3467 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 3409 event pairs, 67 based on Foata normal form. 28/533 useless extension candidates. Maximal degree in co-relation 2564. Up to 407 conditions per place. [2021-03-25 04:46:54,241 INFO L132 encePairwiseOnDemand]: 203/206 looper letters, 3 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2021-03-25 04:46:54,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 47 transitions, 340 flow [2021-03-25 04:46:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2021-03-25 04:46:54,243 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.912621359223301 [2021-03-25 04:46:54,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2021-03-25 04:46:54,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2021-03-25 04:46:54,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:54,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2021-03-25 04:46:54,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 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 04:46:54,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 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 04:46:54,246 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 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 04:46:54,246 INFO L185 Difference]: Start difference. First operand has 66 places, 51 transitions, 368 flow. Second operand 3 states and 564 transitions. [2021-03-25 04:46:54,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 47 transitions, 340 flow [2021-03-25 04:46:54,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 47 transitions, 302 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 04:46:54,253 INFO L241 Difference]: Finished difference. Result has 63 places, 47 transitions, 301 flow [2021-03-25 04:46:54,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2021-03-25 04:46:54,254 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 3 predicate places. [2021-03-25 04:46:54,254 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:54,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 47 transitions, 301 flow [2021-03-25 04:46:54,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 47 transitions, 301 flow [2021-03-25 04:46:54,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 47 transitions, 301 flow [2021-03-25 04:46:54,304 INFO L129 PetriNetUnfolder]: 276/562 cut-off events. [2021-03-25 04:46:54,304 INFO L130 PetriNetUnfolder]: For 1341/1533 co-relation queries the response was YES. [2021-03-25 04:46:54,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1984 conditions, 562 events. 276/562 cut-off events. For 1341/1533 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 3363 event pairs, 72 based on Foata normal form. 10/518 useless extension candidates. Maximal degree in co-relation 1961. Up to 397 conditions per place. [2021-03-25 04:46:54,312 INFO L142 LiptonReduction]: Number of co-enabled transitions 730 [2021-03-25 04:46:54,323 INFO L154 LiptonReduction]: Checked pairs total: 363 [2021-03-25 04:46:54,323 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:54,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 04:46:54,324 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 301 flow [2021-03-25 04:46:54,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 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 04:46:54,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:54,324 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 04:46:54,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:46:54,325 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:54,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1993272853, now seen corresponding path program 1 times [2021-03-25 04:46:54,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:54,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780202277] [2021-03-25 04:46:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:54,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:54,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:54,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:54,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:54,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:54,379 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:54,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:54,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:54,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:54,389 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 04:46:54,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780202277] [2021-03-25 04:46:54,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:54,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:46:54,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001098198] [2021-03-25 04:46:54,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:54,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:54,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:54,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:54,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:54,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 301 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 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 04:46:54,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:54,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:54,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:54,491 INFO L129 PetriNetUnfolder]: 186/429 cut-off events. [2021-03-25 04:46:54,491 INFO L130 PetriNetUnfolder]: For 935/1543 co-relation queries the response was YES. [2021-03-25 04:46:54,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1844 conditions, 429 events. 186/429 cut-off events. For 935/1543 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2499 event pairs, 8 based on Foata normal form. 149/538 useless extension candidates. Maximal degree in co-relation 1819. Up to 324 conditions per place. [2021-03-25 04:46:54,495 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 6 selfloop transitions, 18 changer transitions 4/60 dead transitions. [2021-03-25 04:46:54,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 459 flow [2021-03-25 04:46:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:46:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:46:54,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1227 transitions. [2021-03-25 04:46:54,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8509015256588072 [2021-03-25 04:46:54,498 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1227 transitions. [2021-03-25 04:46:54,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1227 transitions. [2021-03-25 04:46:54,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:54,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1227 transitions. [2021-03-25 04:46:54,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 175.28571428571428) internal successors, (1227), 7 states have internal predecessors, (1227), 0 states have call successors, (0), 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 04:46:54,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 0 states have call successors, (0), 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 04:46:54,504 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 0 states have call successors, (0), 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 04:46:54,504 INFO L185 Difference]: Start difference. First operand has 63 places, 47 transitions, 301 flow. Second operand 7 states and 1227 transitions. [2021-03-25 04:46:54,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 459 flow [2021-03-25 04:46:54,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 60 transitions, 449 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:54,509 INFO L241 Difference]: Finished difference. Result has 70 places, 56 transitions, 429 flow [2021-03-25 04:46:54,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=429, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2021-03-25 04:46:54,510 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2021-03-25 04:46:54,510 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:54,510 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 56 transitions, 429 flow [2021-03-25 04:46:54,510 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 56 transitions, 429 flow [2021-03-25 04:46:54,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 56 transitions, 429 flow [2021-03-25 04:46:54,548 INFO L129 PetriNetUnfolder]: 175/414 cut-off events. [2021-03-25 04:46:54,548 INFO L130 PetriNetUnfolder]: For 1467/1701 co-relation queries the response was YES. [2021-03-25 04:46:54,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1948 conditions, 414 events. 175/414 cut-off events. For 1467/1701 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2464 event pairs, 9 based on Foata normal form. 3/383 useless extension candidates. Maximal degree in co-relation 1922. Up to 309 conditions per place. [2021-03-25 04:46:54,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 812 [2021-03-25 04:46:54,777 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:46:55,235 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2021-03-25 04:46:55,368 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-25 04:46:55,417 INFO L154 LiptonReduction]: Checked pairs total: 743 [2021-03-25 04:46:55,417 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:46:55,417 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 907 [2021-03-25 04:46:55,419 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 423 flow [2021-03-25 04:46:55,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 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 04:46:55,419 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:55,420 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] [2021-03-25 04:46:55,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:46:55,420 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:55,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1958458079, now seen corresponding path program 1 times [2021-03-25 04:46:55,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:55,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580359768] [2021-03-25 04:46:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:55,471 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 04:46:55,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580359768] [2021-03-25 04:46:55,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:55,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:55,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56214477] [2021-03-25 04:46:55,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:55,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:55,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:55,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:55,473 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 207 [2021-03-25 04:46:55,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 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 04:46:55,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:55,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 207 [2021-03-25 04:46:55,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:55,549 INFO L129 PetriNetUnfolder]: 254/578 cut-off events. [2021-03-25 04:46:55,550 INFO L130 PetriNetUnfolder]: For 2197/2635 co-relation queries the response was YES. [2021-03-25 04:46:55,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2572 conditions, 578 events. 254/578 cut-off events. For 2197/2635 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 3569 event pairs, 16 based on Foata normal form. 9/501 useless extension candidates. Maximal degree in co-relation 2544. Up to 412 conditions per place. [2021-03-25 04:46:55,555 INFO L132 encePairwiseOnDemand]: 204/207 looper letters, 4 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-03-25 04:46:55,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 53 transitions, 403 flow [2021-03-25 04:46:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 735 transitions. [2021-03-25 04:46:55,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8876811594202898 [2021-03-25 04:46:55,558 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 735 transitions. [2021-03-25 04:46:55,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 735 transitions. [2021-03-25 04:46:55,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:55,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 735 transitions. [2021-03-25 04:46:55,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 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 04:46:55,561 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 04:46:55,562 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 04:46:55,562 INFO L185 Difference]: Start difference. First operand has 70 places, 55 transitions, 423 flow. Second operand 4 states and 735 transitions. [2021-03-25 04:46:55,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 53 transitions, 403 flow [2021-03-25 04:46:55,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 53 transitions, 356 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-25 04:46:55,571 INFO L241 Difference]: Finished difference. Result has 69 places, 52 transitions, 341 flow [2021-03-25 04:46:55,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=341, PETRI_PLACES=69, PETRI_TRANSITIONS=52} [2021-03-25 04:46:55,571 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 9 predicate places. [2021-03-25 04:46:55,571 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:55,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 52 transitions, 341 flow [2021-03-25 04:46:55,571 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 52 transitions, 341 flow [2021-03-25 04:46:55,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 52 transitions, 341 flow [2021-03-25 04:46:55,662 INFO L129 PetriNetUnfolder]: 253/576 cut-off events. [2021-03-25 04:46:55,663 INFO L130 PetriNetUnfolder]: For 1150/1209 co-relation queries the response was YES. [2021-03-25 04:46:55,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2028 conditions, 576 events. 253/576 cut-off events. For 1150/1209 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3685 event pairs, 16 based on Foata normal form. 1/497 useless extension candidates. Maximal degree in co-relation 2002. Up to 280 conditions per place. [2021-03-25 04:46:55,670 INFO L142 LiptonReduction]: Number of co-enabled transitions 734 [2021-03-25 04:46:55,683 INFO L154 LiptonReduction]: Checked pairs total: 234 [2021-03-25 04:46:55,683 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:55,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 04:46:55,684 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 52 transitions, 341 flow [2021-03-25 04:46:55,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 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 04:46:55,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:55,684 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:55,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:46:55,684 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:55,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:55,685 INFO L82 PathProgramCache]: Analyzing trace with hash 963956849, now seen corresponding path program 1 times [2021-03-25 04:46:55,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:55,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595597648] [2021-03-25 04:46:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:55,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:55,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:55,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:55,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:55,787 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:55,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:55,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:55,795 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 04:46:55,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595597648] [2021-03-25 04:46:55,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:55,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:46:55,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451621939] [2021-03-25 04:46:55,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:46:55,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:55,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:46:55,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:46:55,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 207 [2021-03-25 04:46:55,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 52 transitions, 341 flow. Second operand has 7 states, 7 states have (on average 172.85714285714286) internal successors, (1210), 7 states have internal predecessors, (1210), 0 states have call successors, (0), 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 04:46:55,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:55,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 207 [2021-03-25 04:46:55,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:55,911 INFO L129 PetriNetUnfolder]: 212/484 cut-off events. [2021-03-25 04:46:55,911 INFO L130 PetriNetUnfolder]: For 991/1625 co-relation queries the response was YES. [2021-03-25 04:46:55,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 484 events. 212/484 cut-off events. For 991/1625 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 2874 event pairs, 0 based on Foata normal form. 180/581 useless extension candidates. Maximal degree in co-relation 2067. Up to 245 conditions per place. [2021-03-25 04:46:55,915 INFO L132 encePairwiseOnDemand]: 200/207 looper letters, 2 selfloop transitions, 18 changer transitions 7/57 dead transitions. [2021-03-25 04:46:55,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 57 transitions, 437 flow [2021-03-25 04:46:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:46:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:46:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1402 transitions. [2021-03-25 04:46:55,919 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8466183574879227 [2021-03-25 04:46:55,919 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1402 transitions. [2021-03-25 04:46:55,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1402 transitions. [2021-03-25 04:46:55,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:55,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1402 transitions. [2021-03-25 04:46:55,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 175.25) internal successors, (1402), 8 states have internal predecessors, (1402), 0 states have call successors, (0), 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 04:46:55,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 207.0) internal successors, (1863), 9 states have internal predecessors, (1863), 0 states have call successors, (0), 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 04:46:55,938 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 207.0) internal successors, (1863), 9 states have internal predecessors, (1863), 0 states have call successors, (0), 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 04:46:55,938 INFO L185 Difference]: Start difference. First operand has 69 places, 52 transitions, 341 flow. Second operand 8 states and 1402 transitions. [2021-03-25 04:46:55,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 57 transitions, 437 flow [2021-03-25 04:46:55,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 57 transitions, 408 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:55,943 INFO L241 Difference]: Finished difference. Result has 77 places, 50 transitions, 364 flow [2021-03-25 04:46:55,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=364, PETRI_PLACES=77, PETRI_TRANSITIONS=50} [2021-03-25 04:46:55,943 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 17 predicate places. [2021-03-25 04:46:55,943 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:55,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 50 transitions, 364 flow [2021-03-25 04:46:55,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 50 transitions, 364 flow [2021-03-25 04:46:55,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 50 transitions, 364 flow [2021-03-25 04:46:55,961 INFO L129 PetriNetUnfolder]: 66/186 cut-off events. [2021-03-25 04:46:55,961 INFO L130 PetriNetUnfolder]: For 481/554 co-relation queries the response was YES. [2021-03-25 04:46:55,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 186 events. 66/186 cut-off events. For 481/554 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 911 event pairs, 0 based on Foata normal form. 1/169 useless extension candidates. Maximal degree in co-relation 748. Up to 76 conditions per place. [2021-03-25 04:46:55,964 INFO L142 LiptonReduction]: Number of co-enabled transitions 468 [2021-03-25 04:46:56,324 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:46:56,460 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:46:56,785 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-03-25 04:46:56,931 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-03-25 04:46:57,596 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 196 [2021-03-25 04:46:57,851 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:46:59,205 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 350 DAG size of output: 276 [2021-03-25 04:46:59,750 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:46:59,761 INFO L154 LiptonReduction]: Checked pairs total: 566 [2021-03-25 04:46:59,762 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 04:46:59,762 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3819 [2021-03-25 04:46:59,762 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 350 flow [2021-03-25 04:46:59,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 172.85714285714286) internal successors, (1210), 7 states have internal predecessors, (1210), 0 states have call successors, (0), 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 04:46:59,763 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:59,763 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:59,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:46:59,763 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:59,763 INFO L82 PathProgramCache]: Analyzing trace with hash -667047377, now seen corresponding path program 1 times [2021-03-25 04:46:59,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:59,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627941224] [2021-03-25 04:46:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:59,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:59,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:59,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:59,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:59,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:59,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:46:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:46:59,831 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 04:46:59,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627941224] [2021-03-25 04:46:59,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:59,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:59,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602406910] [2021-03-25 04:46:59,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:59,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:59,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:59,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:59,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 214 [2021-03-25 04:46:59,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 166.33333333333334) internal successors, (998), 6 states have internal predecessors, (998), 0 states have call successors, (0), 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 04:46:59,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:59,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 214 [2021-03-25 04:46:59,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:59,922 INFO L129 PetriNetUnfolder]: 144/334 cut-off events. [2021-03-25 04:46:59,922 INFO L130 PetriNetUnfolder]: For 1975/2177 co-relation queries the response was YES. [2021-03-25 04:46:59,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 334 events. 144/334 cut-off events. For 1975/2177 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1833 event pairs, 2 based on Foata normal form. 29/333 useless extension candidates. Maximal degree in co-relation 1373. Up to 116 conditions per place. [2021-03-25 04:46:59,925 INFO L132 encePairwiseOnDemand]: 209/214 looper letters, 7 selfloop transitions, 3 changer transitions 33/69 dead transitions. [2021-03-25 04:46:59,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 69 transitions, 613 flow [2021-03-25 04:46:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:46:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:46:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1007 transitions. [2021-03-25 04:46:59,928 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7842679127725857 [2021-03-25 04:46:59,928 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1007 transitions. [2021-03-25 04:46:59,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1007 transitions. [2021-03-25 04:46:59,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:59,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1007 transitions. [2021-03-25 04:46:59,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 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 04:46:59,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 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 04:46:59,934 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 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 04:46:59,934 INFO L185 Difference]: Start difference. First operand has 70 places, 45 transitions, 350 flow. Second operand 6 states and 1007 transitions. [2021-03-25 04:46:59,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 69 transitions, 613 flow [2021-03-25 04:46:59,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 546 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-03-25 04:46:59,941 INFO L241 Difference]: Finished difference. Result has 66 places, 36 transitions, 211 flow [2021-03-25 04:46:59,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=66, PETRI_TRANSITIONS=36} [2021-03-25 04:46:59,941 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places. [2021-03-25 04:46:59,941 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:59,941 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 36 transitions, 211 flow [2021-03-25 04:46:59,942 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 36 transitions, 211 flow [2021-03-25 04:46:59,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 36 transitions, 211 flow [2021-03-25 04:46:59,955 INFO L129 PetriNetUnfolder]: 39/108 cut-off events. [2021-03-25 04:46:59,955 INFO L130 PetriNetUnfolder]: For 182/192 co-relation queries the response was YES. [2021-03-25 04:46:59,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 108 events. 39/108 cut-off events. For 182/192 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 409 event pairs, 0 based on Foata normal form. 3/107 useless extension candidates. Maximal degree in co-relation 327. Up to 38 conditions per place. [2021-03-25 04:46:59,956 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 04:47:00,286 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 04:47:00,737 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2021-03-25 04:47:00,879 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-03-25 04:47:01,048 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-03-25 04:47:01,343 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 93 [2021-03-25 04:47:01,406 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-25 04:47:01,406 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:47:01,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1465 [2021-03-25 04:47:01,407 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 34 transitions, 220 flow [2021-03-25 04:47:01,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 166.33333333333334) internal successors, (998), 6 states have internal predecessors, (998), 0 states have call successors, (0), 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 04:47:01,407 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:01,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:01,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:47:01,407 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:01,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:01,408 INFO L82 PathProgramCache]: Analyzing trace with hash 859037003, now seen corresponding path program 1 times [2021-03-25 04:47:01,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:01,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987702052] [2021-03-25 04:47:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:47:01,436 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:47:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:47:01,459 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:47:01,496 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:47:01,498 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:47:01,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:47:01,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:47:01 BasicIcfg [2021-03-25 04:47:01,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:47:01,611 INFO L168 Benchmark]: Toolchain (without parser) took 24871.22 ms. Allocated memory was 341.8 MB in the beginning and 763.4 MB in the end (delta: 421.5 MB). Free memory was 305.2 MB in the beginning and 357.8 MB in the end (delta: -52.6 MB). Peak memory consumption was 368.6 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:01,614 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 341.8 MB. Free memory was 323.5 MB in the beginning and 323.4 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:47:01,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.61 ms. Allocated memory is still 341.8 MB. Free memory was 305.0 MB in the beginning and 299.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:01,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.97 ms. Allocated memory is still 341.8 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:01,615 INFO L168 Benchmark]: Boogie Preprocessor took 38.34 ms. Allocated memory is still 341.8 MB. Free memory was 297.7 MB in the beginning and 295.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:01,615 INFO L168 Benchmark]: RCFGBuilder took 1810.57 ms. Allocated memory is still 341.8 MB. Free memory was 295.6 MB in the beginning and 255.0 MB in the end (delta: 40.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:01,615 INFO L168 Benchmark]: TraceAbstraction took 22297.84 ms. Allocated memory was 341.8 MB in the beginning and 763.4 MB in the end (delta: 421.5 MB). Free memory was 255.0 MB in the beginning and 357.8 MB in the end (delta: -102.8 MB). Peak memory consumption was 317.7 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:01,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 341.8 MB. Free memory was 323.5 MB in the beginning and 323.4 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 629.61 ms. Allocated memory is still 341.8 MB. Free memory was 305.0 MB in the beginning and 299.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 81.97 ms. Allocated memory is still 341.8 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.34 ms. Allocated memory is still 341.8 MB. Free memory was 297.7 MB in the beginning and 295.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1810.57 ms. Allocated memory is still 341.8 MB. Free memory was 295.6 MB in the beginning and 255.0 MB in the end (delta: 40.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 22297.84 ms. Allocated memory was 341.8 MB in the beginning and 763.4 MB in the end (delta: 421.5 MB). Free memory was 255.0 MB in the beginning and 357.8 MB in the end (delta: -102.8 MB). Peak memory consumption was 317.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7619.0ms, 124 PlacesBefore, 60 PlacesAfterwards, 113 TransitionsBefore, 48 TransitionsAfterwards, 2598 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 4166 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2164, positive: 2072, positive conditional: 0, positive unconditional: 2072, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1260, positive: 1232, positive conditional: 0, positive unconditional: 1232, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1260, positive: 1232, positive conditional: 0, positive unconditional: 1232, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2164, positive: 840, positive conditional: 0, positive unconditional: 840, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 1260, unknown conditional: 0, unknown unconditional: 1260] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2628.2ms, 56 PlacesBefore, 41 PlacesAfterwards, 41 TransitionsBefore, 30 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 3 FixpointIterations, 10 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 1348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 350, positive: 273, positive conditional: 0, positive unconditional: 273, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 350, positive: 240, positive conditional: 0, positive unconditional: 240, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1644.2ms, 42 PlacesBefore, 37 PlacesAfterwards, 29 TransitionsBefore, 25 TransitionsAfterwards, 328 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1088 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 324, positive: 257, positive conditional: 0, positive unconditional: 257, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 324, positive: 252, positive conditional: 0, positive unconditional: 252, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 38 PlacesBefore, 38 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 319 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 107, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 107, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 42 PlacesBefore, 42 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 321 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8ms, 47 PlacesBefore, 47 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 430 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 305 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 15, negative conditional: 0, negative unconditional: 15, 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: 108, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 111, Positive conditional cache size: 0, Positive unconditional cache size: 111, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0ms, 48 PlacesBefore, 48 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 409 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 127, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 20, negative conditional: 0, negative unconditional: 20, 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: 127, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.9ms, 53 PlacesBefore, 53 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 528 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 25, negative conditional: 0, negative unconditional: 25, 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: 166, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.5ms, 58 PlacesBefore, 58 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 526 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 477 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 146, positive: 122, positive conditional: 0, positive unconditional: 122, 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: 146, positive: 122, positive conditional: 0, positive unconditional: 122, 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): 133, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 92.4ms, 62 PlacesBefore, 62 PlacesAfterwards, 48 TransitionsBefore, 47 TransitionsAfterwards, 810 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 223, positive conditional: 0, positive unconditional: 223, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.2ms, 66 PlacesBefore, 66 PlacesAfterwards, 52 TransitionsBefore, 51 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 765 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 272, positive: 246, positive conditional: 0, positive unconditional: 246, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 272, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 69.3ms, 63 PlacesBefore, 63 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 730 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 363 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 101, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 101, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 906.9ms, 70 PlacesBefore, 70 PlacesAfterwards, 56 TransitionsBefore, 55 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 743 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 203, positive: 181, positive conditional: 0, positive unconditional: 181, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 203, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 111, Positive conditional cache size: 0, Positive unconditional cache size: 111, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.6ms, 69 PlacesBefore, 69 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 734 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 234 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 111, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 9, negative conditional: 0, negative unconditional: 9, 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: 111, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 111, Positive conditional cache size: 0, Positive unconditional cache size: 111, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3818.4ms, 77 PlacesBefore, 70 PlacesAfterwards, 50 TransitionsBefore, 45 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 566 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 363, positive: 339, positive conditional: 0, positive unconditional: 339, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 363, positive: 326, positive conditional: 0, positive unconditional: 326, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1464.5ms, 66 PlacesBefore, 57 PlacesAfterwards, 36 TransitionsBefore, 34 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 64 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - 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_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1221; [L847] FCALL, FORK 0 pthread_create(&t1221, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1222; [L849] FCALL, FORK 0 pthread_create(&t1222, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1223; [L851] FCALL, FORK 0 pthread_create(&t1223, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1224; [L853] FCALL, FORK 0 pthread_create(&t1224, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 4 z$w_buff1 = z$w_buff0 [L803] 4 z$w_buff0 = 2 [L804] 4 z$w_buff1_used = z$w_buff0_used [L805] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L807] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L812] 4 z$r_buff0_thd4 = (_Bool)1 [L815] 4 a = 1 [L818] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 1 [L770] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 [L785] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L788] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L788] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L789] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L789] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L790] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L791] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L791] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L792] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L792] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L795] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 3 return 0; [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L824] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L826] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L828] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L861] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 z$flush_delayed = weak$$choice2 [L869] 0 z$mem_tmp = z [L870] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L870] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L871] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L871] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L871] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L871] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L872] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L872] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L872] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L872] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L873] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L873] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L873] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L873] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L874] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L875] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L875] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L875] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L876] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L878] 0 z = z$flush_delayed ? z$mem_tmp : z [L879] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=52, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 116 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 22097.0ms, OverallIterations: 16, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1591.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7685.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 57 SDtfs, 36 SDslu, 33 SDs, 0 SdLazy, 327 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 366.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 358.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=12, InterpolantAutomatonStates: 73, 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: 56.8ms SsaConstructionTime, 480.5ms SatisfiabilityAnalysisTime, 1089.9ms InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 1252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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...