/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:10:37,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:10:37,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:10:37,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:10:37,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:10:37,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:10:37,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:10:37,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:10:37,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:10:37,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:10:37,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:10:37,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:10:37,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:10:37,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:10:37,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:10:37,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:10:37,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:10:37,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:10:37,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:10:37,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:10:37,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:10:37,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:10:37,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:10:37,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:10:37,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:10:37,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:10:37,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:10:37,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:10:37,246 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:10:37,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:10:37,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:10:37,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:10:37,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:10:37,283 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:10:37,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:10:37,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:10:37,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:10:37,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:10:37,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:10:37,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:10:37,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:10:37,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:10:37,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:10:37,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:10:37,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:10:37,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:10:37,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:10:37,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:10:37,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:10:37,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:10:37,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:10:37,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:10:37,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:10:37,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:10:37,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:10:37,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:10:37,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:10:37,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:10:37,622 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:10:37,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.opt.i [2021-03-26 10:10:37,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4394f76eb/7692e09b0d964b7a9494584e10f68b51/FLAG10b90f15d [2021-03-26 10:10:38,243 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:10:38,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_tso.opt.i [2021-03-26 10:10:38,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4394f76eb/7692e09b0d964b7a9494584e10f68b51/FLAG10b90f15d [2021-03-26 10:10:38,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4394f76eb/7692e09b0d964b7a9494584e10f68b51 [2021-03-26 10:10:38,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:10:38,703 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:10:38,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:10:38,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:10:38,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:10:38,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:10:38" (1/1) ... [2021-03-26 10:10:38,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b83a7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:38, skipping insertion in model container [2021-03-26 10:10:38,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:10:38" (1/1) ... [2021-03-26 10:10:38,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:10:38,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:10:38,902 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/mix045_tso.opt.i[948,961] [2021-03-26 10:10:39,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:10:39,140 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:10:39,150 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/mix045_tso.opt.i[948,961] [2021-03-26 10:10:39,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:10:39,268 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:10:39,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39 WrapperNode [2021-03-26 10:10:39,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:10:39,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:10:39,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:10:39,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:10:39,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:10:39,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:10:39,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:10:39,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:10:39,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (1/1) ... [2021-03-26 10:10:39,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:10:39,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:10:39,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:10:39,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:10:39,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (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 [2021-03-26 10:10:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:10:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:10:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:10:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:10:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:10:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:10:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:10:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:10:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:10:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:10:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:10:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:10:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:10:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:10:39,433 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:10:41,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:10:41,009 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:10:41,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:10:41 BoogieIcfgContainer [2021-03-26 10:10:41,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:10:41,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:10:41,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:10:41,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:10:41,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:10:38" (1/3) ... [2021-03-26 10:10:41,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cab21f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:10:41, skipping insertion in model container [2021-03-26 10:10:41,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:10:39" (2/3) ... [2021-03-26 10:10:41,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cab21f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:10:41, skipping insertion in model container [2021-03-26 10:10:41,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:10:41" (3/3) ... [2021-03-26 10:10:41,017 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_tso.opt.i [2021-03-26 10:10:41,022 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:10:41,026 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:10:41,027 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:10:41,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,056 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,061 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,067 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,067 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,069 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,069 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:10:41,074 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:10:41,090 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:10:41,108 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:10:41,108 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:10:41,108 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:10:41,108 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:10:41,108 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:10:41,109 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:10:41,109 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:10:41,109 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:10:41,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2021-03-26 10:10:41,151 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-03-26 10:10:41,151 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:10:41,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-03-26 10:10:41,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2021-03-26 10:10:41,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2021-03-26 10:10:41,160 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:41,171 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 97 transitions, 203 flow [2021-03-26 10:10:41,174 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 97 transitions, 203 flow [2021-03-26 10:10:41,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 203 flow [2021-03-26 10:10:41,192 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-03-26 10:10:41,192 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:10:41,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-03-26 10:10:41,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 1738 [2021-03-26 10:10:42,041 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-03-26 10:10:42,416 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:10:43,921 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-26 10:10:44,497 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:10:45,484 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:10:45,805 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:10:45,912 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:10:47,071 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-26 10:10:47,398 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-26 10:10:48,563 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-03-26 10:10:49,097 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-26 10:10:49,281 INFO L154 LiptonReduction]: Checked pairs total: 2726 [2021-03-26 10:10:49,281 INFO L156 LiptonReduction]: Total number of compositions: 67 [2021-03-26 10:10:49,283 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8124 [2021-03-26 10:10:49,292 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 10:10:49,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:10:49,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:49,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:49,294 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:49,298 INFO L82 PathProgramCache]: Analyzing trace with hash 429548733, now seen corresponding path program 1 times [2021-03-26 10:10:49,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:49,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189625057] [2021-03-26 10:10:49,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:49,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:49,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:49,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:49,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:49,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189625057] [2021-03-26 10:10:49,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:49,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:10:49,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247288266] [2021-03-26 10:10:49,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:10:49,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:49,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:10:49,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:10:49,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 167 [2021-03-26 10:10:49,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:49,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:49,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 167 [2021-03-26 10:10:49,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:49,664 INFO L129 PetriNetUnfolder]: 23/102 cut-off events. [2021-03-26 10:10:49,664 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:10:49,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 102 events. 23/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 372 event pairs, 3 based on Foata normal form. 5/99 useless extension candidates. Maximal degree in co-relation 139. Up to 37 conditions per place. [2021-03-26 10:10:49,668 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 7 selfloop transitions, 2 changer transitions 4/41 dead transitions. [2021-03-26 10:10:49,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 113 flow [2021-03-26 10:10:49,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:10:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:10:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2021-03-26 10:10:49,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8902195608782435 [2021-03-26 10:10:49,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2021-03-26 10:10:49,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2021-03-26 10:10:49,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:49,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2021-03-26 10:10:49,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:49,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 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) [2021-03-26 10:10:49,699 INFO L81 ComplementDD]: Finished complementDD. Result 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) [2021-03-26 10:10:49,700 INFO L185 Difference]: Start difference. First operand has 49 places, 40 transitions, 89 flow. Second operand 3 states and 446 transitions. [2021-03-26 10:10:49,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 113 flow [2021-03-26 10:10:49,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:10:49,705 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 78 flow [2021-03-26 10:10:49,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-03-26 10:10:49,707 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2021-03-26 10:10:49,707 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:49,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 78 flow [2021-03-26 10:10:49,707 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 78 flow [2021-03-26 10:10:49,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 78 flow [2021-03-26 10:10:49,712 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 10:10:49,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:10:49,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:10:49,714 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 10:10:50,148 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-26 10:10:50,504 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-26 10:10:51,927 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-03-26 10:10:52,562 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-26 10:10:53,894 INFO L154 LiptonReduction]: Checked pairs total: 1054 [2021-03-26 10:10:53,894 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 10:10:53,895 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4188 [2021-03-26 10:10:53,896 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 56 flow [2021-03-26 10:10:53,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:53,896 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:53,896 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] [2021-03-26 10:10:53,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:10:53,897 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:53,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1980972199, now seen corresponding path program 1 times [2021-03-26 10:10:53,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:53,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630341677] [2021-03-26 10:10:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:54,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:54,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:54,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:54,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:54,010 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:10:54,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:10:54,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:54,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630341677] [2021-03-26 10:10:54,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:54,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:10:54,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049756553] [2021-03-26 10:10:54,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:10:54,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:54,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:10:54,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:10:54,017 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 178 [2021-03-26 10:10:54,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:54,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:54,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 178 [2021-03-26 10:10:54,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:54,039 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-26 10:10:54,039 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:10:54,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 10 conditions per place. [2021-03-26 10:10:54,040 INFO L132 encePairwiseOnDemand]: 174/178 looper letters, 3 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-26 10:10:54,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 72 flow [2021-03-26 10:10:54,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:10:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:10:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 469 transitions. [2021-03-26 10:10:54,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8782771535580525 [2021-03-26 10:10:54,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 469 transitions. [2021-03-26 10:10:54,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 469 transitions. [2021-03-26 10:10:54,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:54,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 469 transitions. [2021-03-26 10:10:54,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:54,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:54,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:54,053 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 56 flow. Second operand 3 states and 469 transitions. [2021-03-26 10:10:54,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 72 flow [2021-03-26 10:10:54,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 25 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:10:54,054 INFO L241 Difference]: Finished difference. Result has 33 places, 25 transitions, 71 flow [2021-03-26 10:10:54,054 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2021-03-26 10:10:54,055 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -16 predicate places. [2021-03-26 10:10:54,055 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:54,055 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 25 transitions, 71 flow [2021-03-26 10:10:54,056 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 25 transitions, 71 flow [2021-03-26 10:10:54,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 25 transitions, 71 flow [2021-03-26 10:10:54,060 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-26 10:10:54,060 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 10:10:54,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 31 events. 3/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2021-03-26 10:10:54,061 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-26 10:10:54,712 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-26 10:10:54,875 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-26 10:10:55,176 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-26 10:10:55,351 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-26 10:10:55,354 INFO L154 LiptonReduction]: Checked pairs total: 633 [2021-03-26 10:10:55,354 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:10:55,354 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1299 [2021-03-26 10:10:55,355 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2021-03-26 10:10:55,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,356 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:55,356 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:55,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:10:55,356 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:55,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:55,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1508873391, now seen corresponding path program 1 times [2021-03-26 10:10:55,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:55,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408668841] [2021-03-26 10:10:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:55,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:55,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:10:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:55,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408668841] [2021-03-26 10:10:55,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:55,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:10:55,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453783784] [2021-03-26 10:10:55,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:55,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:55,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:55,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:55,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 180 [2021-03-26 10:10:55,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:55,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 180 [2021-03-26 10:10:55,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:55,581 INFO L129 PetriNetUnfolder]: 66/150 cut-off events. [2021-03-26 10:10:55,581 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-03-26 10:10:55,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 150 events. 66/150 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 639 event pairs, 34 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 292. Up to 101 conditions per place. [2021-03-26 10:10:55,585 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 7 selfloop transitions, 7 changer transitions 0/30 dead transitions. [2021-03-26 10:10:55,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 111 flow [2021-03-26 10:10:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:10:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:10:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 563 transitions. [2021-03-26 10:10:55,588 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7819444444444444 [2021-03-26 10:10:55,588 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 563 transitions. [2021-03-26 10:10:55,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 563 transitions. [2021-03-26 10:10:55,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:55,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 563 transitions. [2021-03-26 10:10:55,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.75) internal successors, (563), 4 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,592 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,592 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 4 states and 563 transitions. [2021-03-26 10:10:55,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 111 flow [2021-03-26 10:10:55,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:10:55,593 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 112 flow [2021-03-26 10:10:55,594 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-26 10:10:55,594 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -14 predicate places. [2021-03-26 10:10:55,594 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:55,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 112 flow [2021-03-26 10:10:55,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 112 flow [2021-03-26 10:10:55,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 112 flow [2021-03-26 10:10:55,605 INFO L129 PetriNetUnfolder]: 18/71 cut-off events. [2021-03-26 10:10:55,606 INFO L130 PetriNetUnfolder]: For 29/32 co-relation queries the response was YES. [2021-03-26 10:10:55,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 71 events. 18/71 cut-off events. For 29/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 257 event pairs, 8 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 155. Up to 31 conditions per place. [2021-03-26 10:10:55,607 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-26 10:10:55,609 INFO L154 LiptonReduction]: Checked pairs total: 120 [2021-03-26 10:10:55,609 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:55,609 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 10:10:55,610 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 112 flow [2021-03-26 10:10:55,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:55,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:55,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:10:55,611 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:55,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:55,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2024545157, now seen corresponding path program 1 times [2021-03-26 10:10:55,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:55,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367818658] [2021-03-26 10:10:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:55,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:55,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:55,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367818658] [2021-03-26 10:10:55,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:55,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:10:55,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969893383] [2021-03-26 10:10:55,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:10:55,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:55,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:10:55,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:10:55,685 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 180 [2021-03-26 10:10:55,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:55,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 180 [2021-03-26 10:10:55,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:55,720 INFO L129 PetriNetUnfolder]: 22/89 cut-off events. [2021-03-26 10:10:55,720 INFO L130 PetriNetUnfolder]: For 113/191 co-relation queries the response was YES. [2021-03-26 10:10:55,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 89 events. 22/89 cut-off events. For 113/191 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 361 event pairs, 8 based on Foata normal form. 7/85 useless extension candidates. Maximal degree in co-relation 204. Up to 37 conditions per place. [2021-03-26 10:10:55,722 INFO L132 encePairwiseOnDemand]: 177/180 looper letters, 4 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-26 10:10:55,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 126 flow [2021-03-26 10:10:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:10:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:10:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-03-26 10:10:55,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-26 10:10:55,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-03-26 10:10:55,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-03-26 10:10:55,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:55,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-03-26 10:10:55,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,728 INFO L185 Difference]: Start difference. First operand has 35 places, 29 transitions, 112 flow. Second operand 3 states and 480 transitions. [2021-03-26 10:10:55,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 126 flow [2021-03-26 10:10:55,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:10:55,730 INFO L241 Difference]: Finished difference. Result has 38 places, 29 transitions, 125 flow [2021-03-26 10:10:55,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2021-03-26 10:10:55,731 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -11 predicate places. [2021-03-26 10:10:55,731 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:55,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 125 flow [2021-03-26 10:10:55,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 125 flow [2021-03-26 10:10:55,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 125 flow [2021-03-26 10:10:55,744 INFO L129 PetriNetUnfolder]: 18/85 cut-off events. [2021-03-26 10:10:55,745 INFO L130 PetriNetUnfolder]: For 65/95 co-relation queries the response was YES. [2021-03-26 10:10:55,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 85 events. 18/85 cut-off events. For 65/95 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 361 event pairs, 8 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 190. Up to 33 conditions per place. [2021-03-26 10:10:55,746 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-26 10:10:55,749 INFO L154 LiptonReduction]: Checked pairs total: 186 [2021-03-26 10:10:55,749 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:55,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 10:10:55,754 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 125 flow [2021-03-26 10:10:55,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,755 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:55,755 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:55,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:10:55,755 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:55,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1499624061, now seen corresponding path program 1 times [2021-03-26 10:10:55,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:55,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375805299] [2021-03-26 10:10:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:55,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:10:55,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:55,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:55,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:10:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:55,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375805299] [2021-03-26 10:10:55,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:55,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:10:55,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728765578] [2021-03-26 10:10:55,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:55,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:55,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:55,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:55,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 180 [2021-03-26 10:10:55,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:55,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 180 [2021-03-26 10:10:55,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:55,942 INFO L129 PetriNetUnfolder]: 48/145 cut-off events. [2021-03-26 10:10:55,942 INFO L130 PetriNetUnfolder]: For 176/203 co-relation queries the response was YES. [2021-03-26 10:10:55,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 145 events. 48/145 cut-off events. For 176/203 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 682 event pairs, 32 based on Foata normal form. 5/138 useless extension candidates. Maximal degree in co-relation 390. Up to 89 conditions per place. [2021-03-26 10:10:55,944 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 8 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-03-26 10:10:55,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 158 flow [2021-03-26 10:10:55,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:10:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:10:55,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 562 transitions. [2021-03-26 10:10:55,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7805555555555556 [2021-03-26 10:10:55,946 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 562 transitions. [2021-03-26 10:10:55,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 562 transitions. [2021-03-26 10:10:55,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:55,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 562 transitions. [2021-03-26 10:10:55,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,950 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:55,950 INFO L185 Difference]: Start difference. First operand has 38 places, 29 transitions, 125 flow. Second operand 4 states and 562 transitions. [2021-03-26 10:10:55,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 158 flow [2021-03-26 10:10:55,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 153 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:10:55,952 INFO L241 Difference]: Finished difference. Result has 41 places, 30 transitions, 144 flow [2021-03-26 10:10:55,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2021-03-26 10:10:55,953 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -8 predicate places. [2021-03-26 10:10:55,953 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:55,953 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 30 transitions, 144 flow [2021-03-26 10:10:55,953 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 30 transitions, 144 flow [2021-03-26 10:10:55,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 144 flow [2021-03-26 10:10:55,963 INFO L129 PetriNetUnfolder]: 20/87 cut-off events. [2021-03-26 10:10:55,964 INFO L130 PetriNetUnfolder]: For 93/105 co-relation queries the response was YES. [2021-03-26 10:10:55,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 87 events. 20/87 cut-off events. For 93/105 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 359 event pairs, 2 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 224. Up to 30 conditions per place. [2021-03-26 10:10:55,965 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-26 10:10:56,020 INFO L154 LiptonReduction]: Checked pairs total: 206 [2021-03-26 10:10:56,021 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:56,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 10:10:56,022 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 144 flow [2021-03-26 10:10:56,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:56,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:56,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:56,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:10:56,023 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:56,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:56,023 INFO L82 PathProgramCache]: Analyzing trace with hash 191008805, now seen corresponding path program 1 times [2021-03-26 10:10:56,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:56,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513896964] [2021-03-26 10:10:56,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:56,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:56,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:10:56,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:56,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:10:56,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:56,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:10:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:56,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513896964] [2021-03-26 10:10:56,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:56,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:10:56,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491226844] [2021-03-26 10:10:56,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:56,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:56,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:56,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:56,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 180 [2021-03-26 10:10:56,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:56,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:56,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 180 [2021-03-26 10:10:56,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:56,186 INFO L129 PetriNetUnfolder]: 42/131 cut-off events. [2021-03-26 10:10:56,186 INFO L130 PetriNetUnfolder]: For 258/271 co-relation queries the response was YES. [2021-03-26 10:10:56,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 131 events. 42/131 cut-off events. For 258/271 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 603 event pairs, 14 based on Foata normal form. 7/130 useless extension candidates. Maximal degree in co-relation 392. Up to 70 conditions per place. [2021-03-26 10:10:56,187 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 12 selfloop transitions, 6 changer transitions 0/34 dead transitions. [2021-03-26 10:10:56,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 194 flow [2021-03-26 10:10:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:10:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:10:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-03-26 10:10:56,190 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7472222222222222 [2021-03-26 10:10:56,190 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-03-26 10:10:56,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-03-26 10:10:56,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:56,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-03-26 10:10:56,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:56,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:56,193 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:56,194 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 144 flow. Second operand 4 states and 538 transitions. [2021-03-26 10:10:56,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 194 flow [2021-03-26 10:10:56,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:10:56,196 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 167 flow [2021-03-26 10:10:56,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-03-26 10:10:56,196 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -5 predicate places. [2021-03-26 10:10:56,197 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:56,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 167 flow [2021-03-26 10:10:56,197 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 167 flow [2021-03-26 10:10:56,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 167 flow [2021-03-26 10:10:56,211 INFO L129 PetriNetUnfolder]: 24/95 cut-off events. [2021-03-26 10:10:56,211 INFO L130 PetriNetUnfolder]: For 270/291 co-relation queries the response was YES. [2021-03-26 10:10:56,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 95 events. 24/95 cut-off events. For 270/291 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 384 event pairs, 6 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 277. Up to 32 conditions per place. [2021-03-26 10:10:56,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 322 [2021-03-26 10:10:56,487 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 10:10:56,913 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-26 10:10:57,045 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 10:10:57,052 INFO L154 LiptonReduction]: Checked pairs total: 370 [2021-03-26 10:10:57,052 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:10:57,052 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 855 [2021-03-26 10:10:57,053 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 170 flow [2021-03-26 10:10:57,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,053 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:57,053 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:57,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:10:57,053 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:57,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1185198741, now seen corresponding path program 1 times [2021-03-26 10:10:57,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:57,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627501306] [2021-03-26 10:10:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:57,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:57,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:57,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:10:57,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:10:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:57,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627501306] [2021-03-26 10:10:57,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:57,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:10:57,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225706966] [2021-03-26 10:10:57,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:57,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:57,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:57,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:57,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2021-03-26 10:10:57,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:57,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2021-03-26 10:10:57,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:57,212 INFO L129 PetriNetUnfolder]: 48/143 cut-off events. [2021-03-26 10:10:57,213 INFO L130 PetriNetUnfolder]: For 327/340 co-relation queries the response was YES. [2021-03-26 10:10:57,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 143 events. 48/143 cut-off events. For 327/340 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 644 event pairs, 4 based on Foata normal form. 5/135 useless extension candidates. Maximal degree in co-relation 499. Up to 78 conditions per place. [2021-03-26 10:10:57,214 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 12 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2021-03-26 10:10:57,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 243 flow [2021-03-26 10:10:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:10:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:10:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 721 transitions. [2021-03-26 10:10:57,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7966850828729282 [2021-03-26 10:10:57,217 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 721 transitions. [2021-03-26 10:10:57,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 721 transitions. [2021-03-26 10:10:57,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:57,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 721 transitions. [2021-03-26 10:10:57,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,221 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,221 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 170 flow. Second operand 5 states and 721 transitions. [2021-03-26 10:10:57,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 243 flow [2021-03-26 10:10:57,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 230 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-26 10:10:57,226 INFO L241 Difference]: Finished difference. Result has 49 places, 37 transitions, 219 flow [2021-03-26 10:10:57,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2021-03-26 10:10:57,226 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2021-03-26 10:10:57,226 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:57,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 37 transitions, 219 flow [2021-03-26 10:10:57,226 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 37 transitions, 219 flow [2021-03-26 10:10:57,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 37 transitions, 219 flow [2021-03-26 10:10:57,242 INFO L129 PetriNetUnfolder]: 44/133 cut-off events. [2021-03-26 10:10:57,242 INFO L130 PetriNetUnfolder]: For 455/482 co-relation queries the response was YES. [2021-03-26 10:10:57,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 133 events. 44/133 cut-off events. For 455/482 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 582 event pairs, 6 based on Foata normal form. 1/122 useless extension candidates. Maximal degree in co-relation 465. Up to 55 conditions per place. [2021-03-26 10:10:57,244 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-26 10:10:57,248 INFO L154 LiptonReduction]: Checked pairs total: 295 [2021-03-26 10:10:57,248 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:57,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 10:10:57,249 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 219 flow [2021-03-26 10:10:57,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:57,250 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:57,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:10:57,250 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:57,250 INFO L82 PathProgramCache]: Analyzing trace with hash -778490633, now seen corresponding path program 2 times [2021-03-26 10:10:57,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:57,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869645830] [2021-03-26 10:10:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:57,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:10:57,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:10:57,345 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-26 10:10:57,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 10:10:57,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:10:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:57,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869645830] [2021-03-26 10:10:57,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:57,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:10:57,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430567931] [2021-03-26 10:10:57,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:10:57,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:57,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:10:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:10:57,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 181 [2021-03-26 10:10:57,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:57,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 181 [2021-03-26 10:10:57,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:57,467 INFO L129 PetriNetUnfolder]: 50/149 cut-off events. [2021-03-26 10:10:57,467 INFO L130 PetriNetUnfolder]: For 512/529 co-relation queries the response was YES. [2021-03-26 10:10:57,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 149 events. 50/149 cut-off events. For 512/529 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 706 event pairs, 4 based on Foata normal form. 8/147 useless extension candidates. Maximal degree in co-relation 595. Up to 80 conditions per place. [2021-03-26 10:10:57,470 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 13 selfloop transitions, 11 changer transitions 0/40 dead transitions. [2021-03-26 10:10:57,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 40 transitions, 289 flow [2021-03-26 10:10:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:10:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:10:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 691 transitions. [2021-03-26 10:10:57,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7635359116022099 [2021-03-26 10:10:57,473 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 691 transitions. [2021-03-26 10:10:57,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 691 transitions. [2021-03-26 10:10:57,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:57,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 691 transitions. [2021-03-26 10:10:57,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,477 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,477 INFO L185 Difference]: Start difference. First operand has 49 places, 37 transitions, 219 flow. Second operand 5 states and 691 transitions. [2021-03-26 10:10:57,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 40 transitions, 289 flow [2021-03-26 10:10:57,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 40 transitions, 270 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-26 10:10:57,480 INFO L241 Difference]: Finished difference. Result has 53 places, 39 transitions, 247 flow [2021-03-26 10:10:57,480 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2021-03-26 10:10:57,480 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2021-03-26 10:10:57,480 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:57,480 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 39 transitions, 247 flow [2021-03-26 10:10:57,480 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 39 transitions, 247 flow [2021-03-26 10:10:57,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 39 transitions, 247 flow [2021-03-26 10:10:57,500 INFO L129 PetriNetUnfolder]: 46/133 cut-off events. [2021-03-26 10:10:57,501 INFO L130 PetriNetUnfolder]: For 597/616 co-relation queries the response was YES. [2021-03-26 10:10:57,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 133 events. 46/133 cut-off events. For 597/616 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 579 event pairs, 6 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 509. Up to 59 conditions per place. [2021-03-26 10:10:57,502 INFO L142 LiptonReduction]: Number of co-enabled transitions 370 [2021-03-26 10:10:57,508 INFO L154 LiptonReduction]: Checked pairs total: 385 [2021-03-26 10:10:57,508 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:57,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 10:10:57,509 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 247 flow [2021-03-26 10:10:57,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,510 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:57,510 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:57,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:10:57,511 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash -758018202, now seen corresponding path program 1 times [2021-03-26 10:10:57,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:57,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320607799] [2021-03-26 10:10:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:57,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:10:57,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:10:57,583 INFO L142 QuantifierPusher]: treesize reduction 8, result has 63.6 percent of original size [2021-03-26 10:10:57,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:10:57,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:10:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:57,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320607799] [2021-03-26 10:10:57,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:57,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:10:57,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119741583] [2021-03-26 10:10:57,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:57,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:57,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:57,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:57,614 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 181 [2021-03-26 10:10:57,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 247 flow. Second operand has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:57,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 181 [2021-03-26 10:10:57,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:57,716 INFO L129 PetriNetUnfolder]: 48/151 cut-off events. [2021-03-26 10:10:57,717 INFO L130 PetriNetUnfolder]: For 671/688 co-relation queries the response was YES. [2021-03-26 10:10:57,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 151 events. 48/151 cut-off events. For 671/688 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 730 event pairs, 2 based on Foata normal form. 7/148 useless extension candidates. Maximal degree in co-relation 619. Up to 61 conditions per place. [2021-03-26 10:10:57,718 INFO L132 encePairwiseOnDemand]: 176/181 looper letters, 14 selfloop transitions, 13 changer transitions 0/43 dead transitions. [2021-03-26 10:10:57,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 335 flow [2021-03-26 10:10:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:10:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:10:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 571 transitions. [2021-03-26 10:10:57,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7886740331491713 [2021-03-26 10:10:57,721 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 571 transitions. [2021-03-26 10:10:57,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 571 transitions. [2021-03-26 10:10:57,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:57,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 571 transitions. [2021-03-26 10:10:57,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,725 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,725 INFO L185 Difference]: Start difference. First operand has 53 places, 39 transitions, 247 flow. Second operand 4 states and 571 transitions. [2021-03-26 10:10:57,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 335 flow [2021-03-26 10:10:57,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 43 transitions, 312 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 10:10:57,728 INFO L241 Difference]: Finished difference. Result has 54 places, 41 transitions, 286 flow [2021-03-26 10:10:57,728 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2021-03-26 10:10:57,728 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2021-03-26 10:10:57,728 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:57,729 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 41 transitions, 286 flow [2021-03-26 10:10:57,729 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 41 transitions, 286 flow [2021-03-26 10:10:57,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 41 transitions, 286 flow [2021-03-26 10:10:57,745 INFO L129 PetriNetUnfolder]: 42/133 cut-off events. [2021-03-26 10:10:57,745 INFO L130 PetriNetUnfolder]: For 513/526 co-relation queries the response was YES. [2021-03-26 10:10:57,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 133 events. 42/133 cut-off events. For 513/526 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 600 event pairs, 2 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 529. Up to 55 conditions per place. [2021-03-26 10:10:57,747 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-26 10:10:57,752 INFO L154 LiptonReduction]: Checked pairs total: 439 [2021-03-26 10:10:57,752 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:57,752 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 10:10:57,752 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 286 flow [2021-03-26 10:10:57,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:57,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:57,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:10:57,753 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:57,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1913542906, now seen corresponding path program 1 times [2021-03-26 10:10:57,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:57,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302933604] [2021-03-26 10:10:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:57,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:57,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:10:57,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:10:57,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 10:10:57,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:57,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:10:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:57,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302933604] [2021-03-26 10:10:57,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:57,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:10:57,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007500460] [2021-03-26 10:10:57,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:10:57,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:57,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:10:57,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:10:57,866 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 181 [2021-03-26 10:10:57,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 286 flow. Second operand has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:57,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 181 [2021-03-26 10:10:57,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:57,972 INFO L129 PetriNetUnfolder]: 56/175 cut-off events. [2021-03-26 10:10:57,973 INFO L130 PetriNetUnfolder]: For 847/864 co-relation queries the response was YES. [2021-03-26 10:10:57,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 175 events. 56/175 cut-off events. For 847/864 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 891 event pairs, 8 based on Foata normal form. 5/170 useless extension candidates. Maximal degree in co-relation 813. Up to 89 conditions per place. [2021-03-26 10:10:57,974 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 17 selfloop transitions, 15 changer transitions 0/48 dead transitions. [2021-03-26 10:10:57,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 432 flow [2021-03-26 10:10:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:10:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:10:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 717 transitions. [2021-03-26 10:10:57,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7922651933701658 [2021-03-26 10:10:57,977 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 717 transitions. [2021-03-26 10:10:57,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 717 transitions. [2021-03-26 10:10:57,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:57,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 717 transitions. [2021-03-26 10:10:57,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,981 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:57,981 INFO L185 Difference]: Start difference. First operand has 54 places, 41 transitions, 286 flow. Second operand 5 states and 717 transitions. [2021-03-26 10:10:57,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 48 transitions, 432 flow [2021-03-26 10:10:57,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 48 transitions, 400 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-26 10:10:57,987 INFO L241 Difference]: Finished difference. Result has 58 places, 47 transitions, 387 flow [2021-03-26 10:10:57,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2021-03-26 10:10:57,988 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 9 predicate places. [2021-03-26 10:10:57,988 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:57,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 47 transitions, 387 flow [2021-03-26 10:10:57,989 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 47 transitions, 387 flow [2021-03-26 10:10:57,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 47 transitions, 387 flow [2021-03-26 10:10:58,009 INFO L129 PetriNetUnfolder]: 52/159 cut-off events. [2021-03-26 10:10:58,009 INFO L130 PetriNetUnfolder]: For 862/889 co-relation queries the response was YES. [2021-03-26 10:10:58,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 159 events. 52/159 cut-off events. For 862/889 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 778 event pairs, 2 based on Foata normal form. 7/157 useless extension candidates. Maximal degree in co-relation 722. Up to 77 conditions per place. [2021-03-26 10:10:58,012 INFO L142 LiptonReduction]: Number of co-enabled transitions 448 [2021-03-26 10:10:58,020 INFO L154 LiptonReduction]: Checked pairs total: 589 [2021-03-26 10:10:58,020 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:58,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 10:10:58,021 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 387 flow [2021-03-26 10:10:58,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:58,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:58,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:10:58,021 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:58,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:58,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1124098012, now seen corresponding path program 2 times [2021-03-26 10:10:58,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:58,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028746034] [2021-03-26 10:10:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:58,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:10:58,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:10:58,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:10:58,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 10:10:58,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:10:58,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:58,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028746034] [2021-03-26 10:10:58,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:58,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:10:58,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327027519] [2021-03-26 10:10:58,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:10:58,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:58,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:10:58,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:10:58,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 181 [2021-03-26 10:10:58,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 387 flow. Second operand has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:58,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 181 [2021-03-26 10:10:58,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:58,412 INFO L129 PetriNetUnfolder]: 54/169 cut-off events. [2021-03-26 10:10:58,412 INFO L130 PetriNetUnfolder]: For 1003/1023 co-relation queries the response was YES. [2021-03-26 10:10:58,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 169 events. 54/169 cut-off events. For 1003/1023 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 856 event pairs, 0 based on Foata normal form. 10/170 useless extension candidates. Maximal degree in co-relation 840. Up to 77 conditions per place. [2021-03-26 10:10:58,414 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 18 selfloop transitions, 17 changer transitions 0/51 dead transitions. [2021-03-26 10:10:58,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 498 flow [2021-03-26 10:10:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:10:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:10:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 786 transitions. [2021-03-26 10:10:58,417 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7237569060773481 [2021-03-26 10:10:58,417 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 786 transitions. [2021-03-26 10:10:58,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 786 transitions. [2021-03-26 10:10:58,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:58,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 786 transitions. [2021-03-26 10:10:58,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,422 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,422 INFO L185 Difference]: Start difference. First operand has 58 places, 47 transitions, 387 flow. Second operand 6 states and 786 transitions. [2021-03-26 10:10:58,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 498 flow [2021-03-26 10:10:58,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 442 flow, removed 20 selfloop flow, removed 2 redundant places. [2021-03-26 10:10:58,427 INFO L241 Difference]: Finished difference. Result has 62 places, 47 transitions, 389 flow [2021-03-26 10:10:58,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=389, PETRI_PLACES=62, PETRI_TRANSITIONS=47} [2021-03-26 10:10:58,427 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 13 predicate places. [2021-03-26 10:10:58,427 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:58,428 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 47 transitions, 389 flow [2021-03-26 10:10:58,428 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 47 transitions, 389 flow [2021-03-26 10:10:58,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 47 transitions, 389 flow [2021-03-26 10:10:58,447 INFO L129 PetriNetUnfolder]: 50/155 cut-off events. [2021-03-26 10:10:58,448 INFO L130 PetriNetUnfolder]: For 972/1000 co-relation queries the response was YES. [2021-03-26 10:10:58,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 155 events. 50/155 cut-off events. For 972/1000 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 721 event pairs, 2 based on Foata normal form. 7/152 useless extension candidates. Maximal degree in co-relation 673. Up to 60 conditions per place. [2021-03-26 10:10:58,450 INFO L142 LiptonReduction]: Number of co-enabled transitions 446 [2021-03-26 10:10:58,456 INFO L154 LiptonReduction]: Checked pairs total: 568 [2021-03-26 10:10:58,456 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:58,456 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 10:10:58,457 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 47 transitions, 389 flow [2021-03-26 10:10:58,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:58,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:58,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:10:58,457 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:58,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:58,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1681720962, now seen corresponding path program 1 times [2021-03-26 10:10:58,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:58,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232442780] [2021-03-26 10:10:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:58,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:58,494 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-26 10:10:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 10:10:58,503 INFO L142 QuantifierPusher]: treesize reduction 26, result has 51.9 percent of original size [2021-03-26 10:10:58,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 10:10:58,521 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-03-26 10:10:58,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 10:10:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:58,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232442780] [2021-03-26 10:10:58,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:58,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:10:58,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266290113] [2021-03-26 10:10:58,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:58,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:58,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:58,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:58,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 181 [2021-03-26 10:10:58,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 47 transitions, 389 flow. Second operand has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:58,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 181 [2021-03-26 10:10:58,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:58,637 INFO L129 PetriNetUnfolder]: 61/212 cut-off events. [2021-03-26 10:10:58,637 INFO L130 PetriNetUnfolder]: For 1319/1339 co-relation queries the response was YES. [2021-03-26 10:10:58,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 212 events. 61/212 cut-off events. For 1319/1339 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1210 event pairs, 7 based on Foata normal form. 6/206 useless extension candidates. Maximal degree in co-relation 1070. Up to 87 conditions per place. [2021-03-26 10:10:58,639 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 21 selfloop transitions, 21 changer transitions 0/58 dead transitions. [2021-03-26 10:10:58,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 587 flow [2021-03-26 10:10:58,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:10:58,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:10:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 730 transitions. [2021-03-26 10:10:58,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8066298342541437 [2021-03-26 10:10:58,642 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 730 transitions. [2021-03-26 10:10:58,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 730 transitions. [2021-03-26 10:10:58,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:58,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 730 transitions. [2021-03-26 10:10:58,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,645 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,645 INFO L185 Difference]: Start difference. First operand has 62 places, 47 transitions, 389 flow. Second operand 5 states and 730 transitions. [2021-03-26 10:10:58,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 587 flow [2021-03-26 10:10:58,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 551 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-26 10:10:58,652 INFO L241 Difference]: Finished difference. Result has 65 places, 55 transitions, 519 flow [2021-03-26 10:10:58,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=519, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2021-03-26 10:10:58,652 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2021-03-26 10:10:58,652 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:58,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 55 transitions, 519 flow [2021-03-26 10:10:58,652 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 55 transitions, 519 flow [2021-03-26 10:10:58,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 55 transitions, 519 flow [2021-03-26 10:10:58,678 INFO L129 PetriNetUnfolder]: 59/204 cut-off events. [2021-03-26 10:10:58,678 INFO L130 PetriNetUnfolder]: For 1420/1442 co-relation queries the response was YES. [2021-03-26 10:10:58,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 204 events. 59/204 cut-off events. For 1420/1442 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1156 event pairs, 7 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 995. Up to 85 conditions per place. [2021-03-26 10:10:58,681 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-26 10:10:58,691 INFO L154 LiptonReduction]: Checked pairs total: 732 [2021-03-26 10:10:58,691 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:58,691 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 10:10:58,692 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 519 flow [2021-03-26 10:10:58,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:58,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:58,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:10:58,692 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:58,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:58,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1971109890, now seen corresponding path program 1 times [2021-03-26 10:10:58,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:58,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913072795] [2021-03-26 10:10:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:58,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:58,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:58,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:58,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913072795] [2021-03-26 10:10:58,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:58,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:10:58,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772581615] [2021-03-26 10:10:58,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:10:58,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:58,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:10:58,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:10:58,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 181 [2021-03-26 10:10:58,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 519 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:58,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 181 [2021-03-26 10:10:58,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:58,853 INFO L129 PetriNetUnfolder]: 299/647 cut-off events. [2021-03-26 10:10:58,853 INFO L130 PetriNetUnfolder]: For 3090/3532 co-relation queries the response was YES. [2021-03-26 10:10:58,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 647 events. 299/647 cut-off events. For 3090/3532 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 4423 event pairs, 94 based on Foata normal form. 129/655 useless extension candidates. Maximal degree in co-relation 2366. Up to 395 conditions per place. [2021-03-26 10:10:58,859 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 16 selfloop transitions, 8 changer transitions 0/66 dead transitions. [2021-03-26 10:10:58,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 66 transitions, 589 flow [2021-03-26 10:10:58,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:10:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:10:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 770 transitions. [2021-03-26 10:10:58,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.850828729281768 [2021-03-26 10:10:58,861 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 770 transitions. [2021-03-26 10:10:58,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 770 transitions. [2021-03-26 10:10:58,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:58,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 770 transitions. [2021-03-26 10:10:58,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,865 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,865 INFO L185 Difference]: Start difference. First operand has 65 places, 55 transitions, 519 flow. Second operand 5 states and 770 transitions. [2021-03-26 10:10:58,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 66 transitions, 589 flow [2021-03-26 10:10:58,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 577 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:10:58,872 INFO L241 Difference]: Finished difference. Result has 71 places, 62 transitions, 591 flow [2021-03-26 10:10:58,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=591, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2021-03-26 10:10:58,872 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2021-03-26 10:10:58,872 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:58,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 62 transitions, 591 flow [2021-03-26 10:10:58,872 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 62 transitions, 591 flow [2021-03-26 10:10:58,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 62 transitions, 591 flow [2021-03-26 10:10:58,931 INFO L129 PetriNetUnfolder]: 237/542 cut-off events. [2021-03-26 10:10:58,932 INFO L130 PetriNetUnfolder]: For 3057/3269 co-relation queries the response was YES. [2021-03-26 10:10:58,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 542 events. 237/542 cut-off events. For 3057/3269 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 3716 event pairs, 68 based on Foata normal form. 15/498 useless extension candidates. Maximal degree in co-relation 2418. Up to 308 conditions per place. [2021-03-26 10:10:58,939 INFO L142 LiptonReduction]: Number of co-enabled transitions 550 [2021-03-26 10:10:58,953 INFO L154 LiptonReduction]: Checked pairs total: 290 [2021-03-26 10:10:58,953 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:10:58,953 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-03-26 10:10:58,953 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 591 flow [2021-03-26 10:10:58,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:58,954 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:10:58,954 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:10:58,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:10:58,954 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:10:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:10:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash -125433117, now seen corresponding path program 1 times [2021-03-26 10:10:58,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:10:58,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242429221] [2021-03-26 10:10:58,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:10:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:10:58,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:58,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:58,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:59,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:59,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:10:59,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:10:59,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:10:59,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:10:59,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242429221] [2021-03-26 10:10:59,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:10:59,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:10:59,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774607388] [2021-03-26 10:10:59,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:10:59,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:10:59,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:10:59,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:10:59,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 181 [2021-03-26 10:10:59,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:59,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:10:59,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 181 [2021-03-26 10:10:59,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:10:59,116 INFO L129 PetriNetUnfolder]: 189/450 cut-off events. [2021-03-26 10:10:59,116 INFO L130 PetriNetUnfolder]: For 3297/4840 co-relation queries the response was YES. [2021-03-26 10:10:59,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 450 events. 189/450 cut-off events. For 3297/4840 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 2871 event pairs, 8 based on Foata normal form. 231/616 useless extension candidates. Maximal degree in co-relation 1947. Up to 287 conditions per place. [2021-03-26 10:10:59,120 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 10 selfloop transitions, 15 changer transitions 3/58 dead transitions. [2021-03-26 10:10:59,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 58 transitions, 535 flow [2021-03-26 10:10:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:10:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:10:59,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1078 transitions. [2021-03-26 10:10:59,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.850828729281768 [2021-03-26 10:10:59,123 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1078 transitions. [2021-03-26 10:10:59,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1078 transitions. [2021-03-26 10:10:59,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:10:59,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1078 transitions. [2021-03-26 10:10:59,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:59,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:59,128 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:10:59,128 INFO L185 Difference]: Start difference. First operand has 71 places, 62 transitions, 591 flow. Second operand 7 states and 1078 transitions. [2021-03-26 10:10:59,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 58 transitions, 535 flow [2021-03-26 10:10:59,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 58 transitions, 492 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-26 10:10:59,135 INFO L241 Difference]: Finished difference. Result has 72 places, 53 transitions, 481 flow [2021-03-26 10:10:59,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=481, PETRI_PLACES=72, PETRI_TRANSITIONS=53} [2021-03-26 10:10:59,135 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 23 predicate places. [2021-03-26 10:10:59,135 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:10:59,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 53 transitions, 481 flow [2021-03-26 10:10:59,136 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 53 transitions, 481 flow [2021-03-26 10:10:59,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 53 transitions, 481 flow [2021-03-26 10:10:59,169 INFO L129 PetriNetUnfolder]: 110/326 cut-off events. [2021-03-26 10:10:59,170 INFO L130 PetriNetUnfolder]: For 2132/2444 co-relation queries the response was YES. [2021-03-26 10:10:59,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 326 events. 110/326 cut-off events. For 2132/2444 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2230 event pairs, 8 based on Foata normal form. 15/310 useless extension candidates. Maximal degree in co-relation 1611. Up to 200 conditions per place. [2021-03-26 10:10:59,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 574 [2021-03-26 10:10:59,879 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 182 [2021-03-26 10:11:00,092 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-26 10:11:01,398 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 336 DAG size of output: 258 [2021-03-26 10:11:01,993 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 10:11:02,020 INFO L154 LiptonReduction]: Checked pairs total: 416 [2021-03-26 10:11:02,020 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:11:02,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2885 [2021-03-26 10:11:02,021 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 53 transitions, 497 flow [2021-03-26 10:11:02,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:02,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:11:02,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:11:02,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 10:11:02,021 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:11:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:11:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1691393122, now seen corresponding path program 1 times [2021-03-26 10:11:02,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:11:02,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799147410] [2021-03-26 10:11:02,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:11:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:11:02,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:02,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:11:02,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:02,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:11:02,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:02,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:11:02,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:02,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:11:02,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:02,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:11:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:11:02,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799147410] [2021-03-26 10:11:02,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:11:02,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:11:02,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680293299] [2021-03-26 10:11:02,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:11:02,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:11:02,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:11:02,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:11:02,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 182 [2021-03-26 10:11:02,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 53 transitions, 497 flow. Second operand has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:02,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:11:02,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 182 [2021-03-26 10:11:02,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:11:02,370 INFO L129 PetriNetUnfolder]: 141/355 cut-off events. [2021-03-26 10:11:02,371 INFO L130 PetriNetUnfolder]: For 4283/7092 co-relation queries the response was YES. [2021-03-26 10:11:02,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 355 events. 141/355 cut-off events. For 4283/7092 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 2206 event pairs, 0 based on Foata normal form. 239/534 useless extension candidates. Maximal degree in co-relation 1747. Up to 249 conditions per place. [2021-03-26 10:11:02,374 INFO L132 encePairwiseOnDemand]: 175/182 looper letters, 5 selfloop transitions, 19 changer transitions 4/57 dead transitions. [2021-03-26 10:11:02,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 57 transitions, 525 flow [2021-03-26 10:11:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 10:11:02,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 10:11:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1381 transitions. [2021-03-26 10:11:02,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8431013431013431 [2021-03-26 10:11:02,377 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1381 transitions. [2021-03-26 10:11:02,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1381 transitions. [2021-03-26 10:11:02,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:11:02,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1381 transitions. [2021-03-26 10:11:02,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 153.44444444444446) internal successors, (1381), 9 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:02,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:02,400 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:02,400 INFO L185 Difference]: Start difference. First operand has 72 places, 53 transitions, 497 flow. Second operand 9 states and 1381 transitions. [2021-03-26 10:11:02,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 57 transitions, 525 flow [2021-03-26 10:11:02,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 57 transitions, 445 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-03-26 10:11:02,406 INFO L241 Difference]: Finished difference. Result has 77 places, 51 transitions, 414 flow [2021-03-26 10:11:02,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=414, PETRI_PLACES=77, PETRI_TRANSITIONS=51} [2021-03-26 10:11:02,406 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 28 predicate places. [2021-03-26 10:11:02,406 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:11:02,407 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 51 transitions, 414 flow [2021-03-26 10:11:02,407 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 51 transitions, 414 flow [2021-03-26 10:11:02,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 51 transitions, 414 flow [2021-03-26 10:11:02,455 INFO L129 PetriNetUnfolder]: 70/243 cut-off events. [2021-03-26 10:11:02,456 INFO L130 PetriNetUnfolder]: For 1205/1315 co-relation queries the response was YES. [2021-03-26 10:11:02,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 243 events. 70/243 cut-off events. For 1205/1315 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1615 event pairs, 0 based on Foata normal form. 12/226 useless extension candidates. Maximal degree in co-relation 1034. Up to 90 conditions per place. [2021-03-26 10:11:02,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 556 [2021-03-26 10:11:02,571 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-03-26 10:11:02,796 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-26 10:11:02,931 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-26 10:11:03,570 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 194 [2021-03-26 10:11:03,788 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-26 10:11:05,270 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 348 DAG size of output: 270 [2021-03-26 10:11:05,774 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 10:11:05,782 INFO L154 LiptonReduction]: Checked pairs total: 579 [2021-03-26 10:11:05,782 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:11:05,782 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3376 [2021-03-26 10:11:05,785 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 384 flow [2021-03-26 10:11:05,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:05,785 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:11:05,786 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:11:05,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 10:11:05,786 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:11:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:11:05,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1301939078, now seen corresponding path program 1 times [2021-03-26 10:11:05,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:11:05,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248854442] [2021-03-26 10:11:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:11:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:11:05,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:05,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:11:05,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:05,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:11:05,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:11:05,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:11:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:11:05,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248854442] [2021-03-26 10:11:05,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:11:05,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:11:05,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97998937] [2021-03-26 10:11:05,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:11:05,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:11:05,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:11:05,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:11:05,828 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 184 [2021-03-26 10:11:05,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 384 flow. Second operand has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:05,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:11:05,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 184 [2021-03-26 10:11:05,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:11:05,867 INFO L129 PetriNetUnfolder]: 63/197 cut-off events. [2021-03-26 10:11:05,868 INFO L130 PetriNetUnfolder]: For 2703/2769 co-relation queries the response was YES. [2021-03-26 10:11:05,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 877 conditions, 197 events. 63/197 cut-off events. For 2703/2769 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1087 event pairs, 0 based on Foata normal form. 32/215 useless extension candidates. Maximal degree in co-relation 842. Up to 93 conditions per place. [2021-03-26 10:11:05,869 INFO L132 encePairwiseOnDemand]: 181/184 looper letters, 3 selfloop transitions, 1 changer transitions 11/41 dead transitions. [2021-03-26 10:11:05,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 41 transitions, 339 flow [2021-03-26 10:11:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:11:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:11:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 646 transitions. [2021-03-26 10:11:05,872 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8777173913043478 [2021-03-26 10:11:05,872 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 646 transitions. [2021-03-26 10:11:05,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 646 transitions. [2021-03-26 10:11:05,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:11:05,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 646 transitions. [2021-03-26 10:11:05,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.5) internal successors, (646), 4 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:05,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:05,888 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:05,888 INFO L185 Difference]: Start difference. First operand has 74 places, 46 transitions, 384 flow. Second operand 4 states and 646 transitions. [2021-03-26 10:11:05,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 41 transitions, 339 flow [2021-03-26 10:11:05,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 41 transitions, 281 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-03-26 10:11:05,893 INFO L241 Difference]: Finished difference. Result has 60 places, 30 transitions, 186 flow [2021-03-26 10:11:05,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=60, PETRI_TRANSITIONS=30} [2021-03-26 10:11:05,893 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2021-03-26 10:11:05,893 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:11:05,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 30 transitions, 186 flow [2021-03-26 10:11:05,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 30 transitions, 186 flow [2021-03-26 10:11:05,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 30 transitions, 186 flow [2021-03-26 10:11:05,899 INFO L129 PetriNetUnfolder]: 13/57 cut-off events. [2021-03-26 10:11:05,899 INFO L130 PetriNetUnfolder]: For 151/164 co-relation queries the response was YES. [2021-03-26 10:11:05,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 57 events. 13/57 cut-off events. For 151/164 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 139 event pairs, 0 based on Foata normal form. 8/64 useless extension candidates. Maximal degree in co-relation 172. Up to 19 conditions per place. [2021-03-26 10:11:05,900 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 10:11:06,102 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:11:06,512 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:11:06,637 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:11:06,920 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 10:11:07,365 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-26 10:11:07,499 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 10:11:07,767 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-03-26 10:11:08,008 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 90 [2021-03-26 10:11:08,254 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 10:11:08,713 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2021-03-26 10:11:08,888 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-26 10:11:08,891 INFO L154 LiptonReduction]: Checked pairs total: 37 [2021-03-26 10:11:08,892 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 10:11:08,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2999 [2021-03-26 10:11:08,892 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 27 transitions, 188 flow [2021-03-26 10:11:08,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:11:08,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:11:08,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:11:08,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:11:08,893 INFO L428 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:11:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:11:08,894 INFO L82 PathProgramCache]: Analyzing trace with hash -345428811, now seen corresponding path program 1 times [2021-03-26 10:11:08,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:11:08,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78311202] [2021-03-26 10:11:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:11:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:11:08,916 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:11:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:11:08,939 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:11:08,976 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:11:08,976 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:11:08,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:11:09,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:11:09 BasicIcfg [2021-03-26 10:11:09,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:11:09,079 INFO L168 Benchmark]: Toolchain (without parser) took 30376.27 ms. Allocated memory was 255.9 MB in the beginning and 790.6 MB in the end (delta: 534.8 MB). Free memory was 234.6 MB in the beginning and 441.5 MB in the end (delta: -206.9 MB). Peak memory consumption was 327.4 MB. Max. memory is 16.0 GB. [2021-03-26 10:11:09,079 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:11:09,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.57 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.0 MB in the beginning and 324.4 MB in the end (delta: -90.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:11:09,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.64 ms. Allocated memory is still 364.9 MB. Free memory was 323.7 MB in the beginning and 320.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:11:09,080 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 ms. Allocated memory is still 364.9 MB. Free memory was 320.9 MB in the beginning and 318.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:11:09,080 INFO L168 Benchmark]: RCFGBuilder took 1662.51 ms. Allocated memory is still 364.9 MB. Free memory was 318.8 MB in the beginning and 249.9 MB in the end (delta: 68.9 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:11:09,080 INFO L168 Benchmark]: TraceAbstraction took 28066.44 ms. Allocated memory was 364.9 MB in the beginning and 790.6 MB in the end (delta: 425.7 MB). Free memory was 249.9 MB in the beginning and 441.5 MB in the end (delta: -191.5 MB). Peak memory consumption was 234.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:11:09,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 565.57 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.0 MB in the beginning and 324.4 MB in the end (delta: -90.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.64 ms. Allocated memory is still 364.9 MB. Free memory was 323.7 MB in the beginning and 320.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.44 ms. Allocated memory is still 364.9 MB. Free memory was 320.9 MB in the beginning and 318.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1662.51 ms. Allocated memory is still 364.9 MB. Free memory was 318.8 MB in the beginning and 249.9 MB in the end (delta: 68.9 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28066.44 ms. Allocated memory was 364.9 MB in the beginning and 790.6 MB in the end (delta: 425.7 MB). Free memory was 249.9 MB in the beginning and 441.5 MB in the end (delta: -191.5 MB). Peak memory consumption was 234.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8107.2ms, 105 PlacesBefore, 49 PlacesAfterwards, 97 TransitionsBefore, 40 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 2726 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1601, positive: 1527, positive conditional: 1527, positive unconditional: 0, negative: 74, negative conditional: 74, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1601, positive: 1527, positive conditional: 0, positive unconditional: 1527, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1601, positive: 1527, positive conditional: 0, positive unconditional: 1527, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1212, positive: 1177, positive conditional: 0, positive unconditional: 1177, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1212, positive: 1171, positive conditional: 0, positive unconditional: 1171, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 500, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 482, negative conditional: 0, negative unconditional: 482, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1601, positive: 350, positive conditional: 0, positive unconditional: 350, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 1212, unknown conditional: 0, unknown unconditional: 1212] , Statistics on independence cache: Total cache size (in pairs): 1212, Positive cache size: 1177, Positive conditional cache size: 0, Positive unconditional cache size: 1177, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4187.1ms, 46 PlacesBefore, 32 PlacesAfterwards, 34 TransitionsBefore, 23 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 1054 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 384, positive: 306, positive conditional: 306, positive unconditional: 0, negative: 78, negative conditional: 78, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 384, positive: 306, positive conditional: 9, positive unconditional: 297, negative: 78, negative conditional: 2, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 384, positive: 306, positive conditional: 9, positive unconditional: 297, negative: 78, negative conditional: 2, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 68, positive: 46, positive conditional: 2, positive unconditional: 44, negative: 22, negative conditional: 2, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 68, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 22, negative conditional: 2, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 579, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 471, negative conditional: 75, negative unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 384, positive: 260, positive conditional: 7, positive unconditional: 253, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 68, unknown conditional: 4, unknown unconditional: 64] , Statistics on independence cache: Total cache size (in pairs): 1280, Positive cache size: 1223, Positive conditional cache size: 2, Positive unconditional cache size: 1221, Negative cache size: 57, Negative conditional cache size: 2, Negative unconditional cache size: 55, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1298.8ms, 33 PlacesBefore, 31 PlacesAfterwards, 25 TransitionsBefore, 23 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 633 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 196, positive: 148, positive conditional: 148, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 196, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 196, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 196, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 1293, Positive cache size: 1230, Positive conditional cache size: 2, Positive unconditional cache size: 1228, Negative cache size: 63, Negative conditional cache size: 2, Negative unconditional cache size: 61, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.8ms, 35 PlacesBefore, 35 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 120 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, positive: 36, positive conditional: 4, positive unconditional: 32, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 36, positive conditional: 4, positive unconditional: 32, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, positive: 35, positive conditional: 4, positive unconditional: 31, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1294, Positive cache size: 1231, Positive conditional cache size: 2, Positive unconditional cache size: 1229, Negative cache size: 63, Negative conditional cache size: 2, Negative unconditional cache size: 61, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.9ms, 38 PlacesBefore, 38 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 186 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, positive: 65, positive conditional: 12, positive unconditional: 53, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 65, positive conditional: 12, positive unconditional: 53, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 65, positive conditional: 12, positive unconditional: 53, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1294, Positive cache size: 1231, Positive conditional cache size: 2, Positive unconditional cache size: 1229, Negative cache size: 63, Negative conditional cache size: 2, Negative unconditional cache size: 61, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.4ms, 41 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 206 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 90, positive: 78, positive conditional: 78, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 90, positive: 78, positive conditional: 9, positive unconditional: 69, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 78, positive conditional: 9, positive unconditional: 69, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 75, positive conditional: 8, positive unconditional: 67, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 5, unknown conditional: 1, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1299, Positive cache size: 1234, Positive conditional cache size: 3, Positive unconditional cache size: 1231, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 854.9ms, 44 PlacesBefore, 44 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 370 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 122, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 122, positive: 103, positive conditional: 21, positive unconditional: 82, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 122, positive: 103, positive conditional: 21, positive unconditional: 82, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 122, positive: 97, positive conditional: 20, positive unconditional: 77, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 6, unknown conditional: 1, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 1305, Positive cache size: 1240, Positive conditional cache size: 4, Positive unconditional cache size: 1236, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.9ms, 49 PlacesBefore, 49 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 295 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 87, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 87, positive: 72, positive conditional: 18, positive unconditional: 54, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 72, positive conditional: 18, positive unconditional: 54, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 72, positive conditional: 18, positive unconditional: 54, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1305, Positive cache size: 1240, Positive conditional cache size: 4, Positive unconditional cache size: 1236, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.9ms, 53 PlacesBefore, 53 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 385 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, positive: 89, positive conditional: 89, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 89, positive conditional: 14, positive unconditional: 75, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 89, positive conditional: 14, positive unconditional: 75, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 109, positive: 87, positive conditional: 14, positive unconditional: 73, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1307, Positive cache size: 1242, Positive conditional cache size: 4, Positive unconditional cache size: 1238, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.0ms, 54 PlacesBefore, 54 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 439 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 99, positive conditional: 99, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, positive: 99, positive conditional: 27, positive unconditional: 72, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 99, positive conditional: 27, positive unconditional: 72, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, positive: 99, positive conditional: 27, positive unconditional: 72, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1307, Positive cache size: 1242, Positive conditional cache size: 4, Positive unconditional cache size: 1238, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1ms, 58 PlacesBefore, 58 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 589 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 167, positive: 140, positive conditional: 140, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 167, positive: 140, positive conditional: 56, positive unconditional: 84, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 167, positive: 140, positive conditional: 56, positive unconditional: 84, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 167, positive: 139, positive conditional: 55, positive unconditional: 84, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1308, Positive cache size: 1243, Positive conditional cache size: 5, Positive unconditional cache size: 1238, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.2ms, 62 PlacesBefore, 62 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 446 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 568 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 128, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 128, positive: 102, positive conditional: 24, positive unconditional: 78, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 128, positive: 102, positive conditional: 24, positive unconditional: 78, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 128, positive: 101, positive conditional: 23, positive unconditional: 78, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1309, Positive cache size: 1244, Positive conditional cache size: 6, Positive unconditional cache size: 1238, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 27 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.7ms, 65 PlacesBefore, 65 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 732 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 174, positive: 144, positive conditional: 144, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 174, positive: 144, positive conditional: 56, positive unconditional: 88, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 174, positive: 144, positive conditional: 56, positive unconditional: 88, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 174, positive: 143, positive conditional: 55, positive unconditional: 88, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1310, Positive cache size: 1245, Positive conditional cache size: 7, Positive unconditional cache size: 1238, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.6ms, 71 PlacesBefore, 71 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 290 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 158, positive: 148, positive conditional: 148, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 158, positive: 148, positive conditional: 70, positive unconditional: 78, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 158, positive: 148, positive conditional: 70, positive unconditional: 78, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158, positive: 146, positive conditional: 70, positive unconditional: 76, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1312, Positive cache size: 1247, Positive conditional cache size: 7, Positive unconditional cache size: 1240, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 38 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2884.3ms, 72 PlacesBefore, 72 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 574 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 416 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 132, positive: 116, positive conditional: 116, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 132, positive: 116, positive conditional: 48, positive unconditional: 68, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132, positive: 116, positive conditional: 48, positive unconditional: 68, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 132, positive: 112, positive conditional: 46, positive unconditional: 66, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1316, Positive cache size: 1251, Positive conditional cache size: 9, Positive unconditional cache size: 1242, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3374.8ms, 77 PlacesBefore, 74 PlacesAfterwards, 51 TransitionsBefore, 46 TransitionsAfterwards, 556 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 579 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 211, positive: 187, positive conditional: 187, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 211, positive: 187, positive conditional: 118, positive unconditional: 69, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 211, positive: 187, positive conditional: 118, positive unconditional: 69, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 16, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 211, positive: 169, positive conditional: 102, positive unconditional: 67, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 18, unknown conditional: 16, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1334, Positive cache size: 1269, Positive conditional cache size: 25, Positive unconditional cache size: 1244, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 57 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2998.3ms, 60 PlacesBefore, 52 PlacesAfterwards, 30 TransitionsBefore, 27 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 37, positive: 37, positive conditional: 14, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 37, positive conditional: 14, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 29, positive conditional: 11, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 3, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1277, Positive conditional cache size: 28, Positive unconditional cache size: 1249, Negative cache size: 65, Negative conditional cache size: 2, Negative unconditional cache size: 63, Eliminated conditions: 18 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L715] 0 int a = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L739] 0 int z = 0; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1214; [L824] FCALL, FORK 0 pthread_create(&t1214, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1215; [L826] FCALL, FORK 0 pthread_create(&t1215, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1216; [L828] FCALL, FORK 0 pthread_create(&t1216, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 [L792] 3 z = 1 [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L745] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L760] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 2 return 0; [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=55, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 27872.2ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1832.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8178.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 32 SDslu, 21 SDs, 0 SdLazy, 379 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 519.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 563.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=591occurred in iteration=13, InterpolantAutomatonStates: 76, 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: 58.1ms SsaConstructionTime, 468.1ms SatisfiabilityAnalysisTime, 1078.6ms InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 1313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...