/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:37:11,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:37:11,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:37:11,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:37:11,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:37:11,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:37:11,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:37:11,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:37:11,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:37:11,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:37:11,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:37:11,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:37:11,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:37:11,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:37:11,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:37:11,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:37:11,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:37:11,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:37:11,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:37:11,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:37:11,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:37:11,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:37:11,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:37:11,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:37:11,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:37:11,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:37:11,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:37:11,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:37:11,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:37:11,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-03-25 04:37:11,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:37:11,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:37:11,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:37:11,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 04:37:11,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:37:11,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:37:11,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:37:11,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:37:11,321 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:37:11,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:37:11,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:37:11,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:37:11,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:37:11,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:37:11,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:37:11,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:37:11,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:37:11,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:37:11,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:37:11,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:37:11,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:37:11,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:37:11,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:37:11,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:37:11,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:37:11,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:37:11,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:37:11,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:37:11,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:37:11,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:37:11,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:37:11,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:37:11,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:37:11,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:37:11,325 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:37:11,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:37:11,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:37:11,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:37:11,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:37:11,647 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:37:11,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2021-03-25 04:37:11,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0884478/d20aea409b0041149b67e5a7194833e5/FLAG7fc4d65e8 [2021-03-25 04:37:12,297 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:37:12,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2021-03-25 04:37:12,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0884478/d20aea409b0041149b67e5a7194833e5/FLAG7fc4d65e8 [2021-03-25 04:37:12,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0884478/d20aea409b0041149b67e5a7194833e5 [2021-03-25 04:37:12,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:37:12,561 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:37:12,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:37:12,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:37:12,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:37:12,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:37:12" (1/1) ... [2021-03-25 04:37:12,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de844d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:12, skipping insertion in model container [2021-03-25 04:37:12,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:37:12" (1/1) ... [2021-03-25 04:37:12,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:37:12,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:37:12,754 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/mix021_tso.oepc.i[949,962] [2021-03-25 04:37:13,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:37:13,019 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:37:13,030 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/mix021_tso.oepc.i[949,962] [2021-03-25 04:37:13,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:37:13,160 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:37:13,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13 WrapperNode [2021-03-25 04:37:13,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:37:13,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:37:13,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:37:13,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:37:13,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:37:13,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:37:13,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:37:13,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:37:13,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... [2021-03-25 04:37:13,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:37:13,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:37:13,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:37:13,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:37:13,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:37:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:37:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:37:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:37:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:37:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:37:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:37:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:37:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:37:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:37:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:37:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:37:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:37:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:37:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:37:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:37:13,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:37:13,353 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:37:15,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:37:15,141 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:37:15,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:37:15 BoogieIcfgContainer [2021-03-25 04:37:15,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:37:15,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:37:15,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:37:15,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:37:15,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:37:12" (1/3) ... [2021-03-25 04:37:15,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131668e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:37:15, skipping insertion in model container [2021-03-25 04:37:15,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:37:13" (2/3) ... [2021-03-25 04:37:15,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131668e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:37:15, skipping insertion in model container [2021-03-25 04:37:15,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:37:15" (3/3) ... [2021-03-25 04:37:15,151 INFO L111 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2021-03-25 04:37:15,156 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:37:15,160 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:37:15,161 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:37:15,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,203 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,203 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,205 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,205 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,216 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,216 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,216 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,216 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,216 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,220 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,222 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,223 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,223 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,223 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,223 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,225 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,226 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,226 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,226 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,228 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,228 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:37:15,232 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:37:15,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:37:15,265 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:37:15,265 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:37:15,265 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:37:15,265 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:37:15,265 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:37:15,266 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:37:15,266 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:37:15,266 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:37:15,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:37:15,312 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:37:15,312 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:15,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:37:15,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:37:15,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-03-25 04:37:15,321 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:15,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:37:15,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:37:15,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-03-25 04:37:15,360 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:37:15,361 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:15,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:37:15,370 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-25 04:37:16,542 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:37:16,946 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-25 04:37:17,074 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-25 04:37:17,789 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-25 04:37:18,089 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 04:37:19,341 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-25 04:37:19,947 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:37:21,236 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-03-25 04:37:21,529 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:37:22,120 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:37:22,677 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:37:23,040 INFO L154 LiptonReduction]: Checked pairs total: 5205 [2021-03-25 04:37:23,040 INFO L156 LiptonReduction]: Total number of compositions: 74 [2021-03-25 04:37:23,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7722 [2021-03-25 04:37:23,054 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-25 04:37:23,054 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:23,054 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:23,055 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:23,055 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:23,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:23,062 INFO L82 PathProgramCache]: Analyzing trace with hash 595482538, now seen corresponding path program 1 times [2021-03-25 04:37:23,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:23,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010406088] [2021-03-25 04:37:23,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:23,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:23,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:23,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:23,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:23,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010406088] [2021-03-25 04:37:23,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:23,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:37:23,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950657697] [2021-03-25 04:37:23,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:37:23,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:23,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:37:23,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:37:23,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 190 [2021-03-25 04:37:23,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:23,379 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:23,379 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 190 [2021-03-25 04:37:23,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:23,470 INFO L129 PetriNetUnfolder]: 69/206 cut-off events. [2021-03-25 04:37:23,470 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:23,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 206 events. 69/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 954 event pairs, 39 based on Foata normal form. 10/194 useless extension candidates. Maximal degree in co-relation 315. Up to 89 conditions per place. [2021-03-25 04:37:23,474 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 9 selfloop transitions, 2 changer transitions 5/49 dead transitions. [2021-03-25 04:37:23,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 136 flow [2021-03-25 04:37:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:37:23,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:37:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-25 04:37:23,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9175438596491228 [2021-03-25 04:37:23,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-25 04:37:23,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-25 04:37:23,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:23,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-25 04:37:23,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:23,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:23,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:23,509 INFO L185 Difference]: Start difference. First operand has 59 places, 47 transitions, 106 flow. Second operand 3 states and 523 transitions. [2021-03-25 04:37:23,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 136 flow [2021-03-25 04:37:23,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 49 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:37:23,513 INFO L241 Difference]: Finished difference. Result has 55 places, 40 transitions, 92 flow [2021-03-25 04:37:23,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2021-03-25 04:37:23,515 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2021-03-25 04:37:23,516 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:23,516 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 40 transitions, 92 flow [2021-03-25 04:37:23,516 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 40 transitions, 92 flow [2021-03-25 04:37:23,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 40 transitions, 92 flow [2021-03-25 04:37:23,521 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-25 04:37:23,521 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:23,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 44 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:37:23,522 INFO L142 LiptonReduction]: Number of co-enabled transitions 434 [2021-03-25 04:37:24,061 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-03-25 04:37:24,370 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-03-25 04:37:25,636 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 270 DAG size of output: 269 [2021-03-25 04:37:26,246 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:37:27,430 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:37:27,581 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:37:27,896 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:37:28,054 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:37:28,059 INFO L154 LiptonReduction]: Checked pairs total: 2544 [2021-03-25 04:37:28,059 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 04:37:28,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4544 [2021-03-25 04:37:28,060 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 68 flow [2021-03-25 04:37:28,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:28,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:28,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:37:28,061 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:28,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:28,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1052868086, now seen corresponding path program 1 times [2021-03-25 04:37:28,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:28,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933158109] [2021-03-25 04:37:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:28,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:28,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:28,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:28,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:28,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:37:28,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:37:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:28,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933158109] [2021-03-25 04:37:28,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:28,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:37:28,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027337512] [2021-03-25 04:37:28,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:37:28,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:28,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:37:28,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:37:28,170 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 202 [2021-03-25 04:37:28,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:28,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 202 [2021-03-25 04:37:28,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:28,194 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-03-25 04:37:28,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:28,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 40 events. 3/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 1 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 54. Up to 10 conditions per place. [2021-03-25 04:37:28,195 INFO L132 encePairwiseOnDemand]: 198/202 looper letters, 3 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2021-03-25 04:37:28,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 84 flow [2021-03-25 04:37:28,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:37:28,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:37:28,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2021-03-25 04:37:28,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8877887788778878 [2021-03-25 04:37:28,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2021-03-25 04:37:28,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2021-03-25 04:37:28,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:28,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2021-03-25 04:37:28,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 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) [2021-03-25 04:37:28,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,204 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,204 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 68 flow. Second operand 3 states and 538 transitions. [2021-03-25 04:37:28,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 84 flow [2021-03-25 04:37:28,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:37:28,205 INFO L241 Difference]: Finished difference. Result has 40 places, 30 transitions, 83 flow [2021-03-25 04:37:28,205 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2021-03-25 04:37:28,206 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -19 predicate places. [2021-03-25 04:37:28,206 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:28,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 30 transitions, 83 flow [2021-03-25 04:37:28,206 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 30 transitions, 83 flow [2021-03-25 04:37:28,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 83 flow [2021-03-25 04:37:28,211 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-03-25 04:37:28,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:37:28,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 51. Up to 10 conditions per place. [2021-03-25 04:37:28,212 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-25 04:37:28,214 INFO L154 LiptonReduction]: Checked pairs total: 453 [2021-03-25 04:37:28,214 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:28,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 04:37:28,215 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 83 flow [2021-03-25 04:37:28,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:28,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:28,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:37:28,216 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash 517303529, now seen corresponding path program 1 times [2021-03-25 04:37:28,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:28,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781845214] [2021-03-25 04:37:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:28,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:28,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:28,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781845214] [2021-03-25 04:37:28,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:28,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:37:28,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973999856] [2021-03-25 04:37:28,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:37:28,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:28,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:37:28,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:37:28,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 202 [2021-03-25 04:37:28,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:28,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 202 [2021-03-25 04:37:28,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:28,362 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-03-25 04:37:28,362 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:37:28,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 40 events. 3/40 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 1 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 59. Up to 10 conditions per place. [2021-03-25 04:37:28,363 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 1 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2021-03-25 04:37:28,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 89 flow [2021-03-25 04:37:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:37:28,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:37:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2021-03-25 04:37:28,370 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9026402640264026 [2021-03-25 04:37:28,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2021-03-25 04:37:28,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2021-03-25 04:37:28,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:28,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2021-03-25 04:37:28,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,374 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 83 flow. Second operand 3 states and 547 transitions. [2021-03-25 04:37:28,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 89 flow [2021-03-25 04:37:28,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:28,375 INFO L241 Difference]: Finished difference. Result has 42 places, 30 transitions, 88 flow [2021-03-25 04:37:28,375 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2021-03-25 04:37:28,376 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -17 predicate places. [2021-03-25 04:37:28,376 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:28,376 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 30 transitions, 88 flow [2021-03-25 04:37:28,376 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 30 transitions, 88 flow [2021-03-25 04:37:28,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 30 transitions, 88 flow [2021-03-25 04:37:28,381 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-03-25 04:37:28,381 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:37:28,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 36 events. 3/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 54. Up to 10 conditions per place. [2021-03-25 04:37:28,382 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-25 04:37:28,412 INFO L154 LiptonReduction]: Checked pairs total: 820 [2021-03-25 04:37:28,412 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:37:28,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 04:37:28,416 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 86 flow [2021-03-25 04:37:28,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,417 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:28,417 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:28,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:37:28,418 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:28,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:28,418 INFO L82 PathProgramCache]: Analyzing trace with hash 2119014568, now seen corresponding path program 1 times [2021-03-25 04:37:28,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:28,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029153723] [2021-03-25 04:37:28,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:28,605 INFO L142 QuantifierPusher]: treesize reduction 16, result has 40.7 percent of original size [2021-03-25 04:37:28,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 04:37:28,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:28,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 04:37:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:28,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029153723] [2021-03-25 04:37:28,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:28,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:37:28,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495273751] [2021-03-25 04:37:28,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:37:28,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:28,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:37:28,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:37:28,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 203 [2021-03-25 04:37:28,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:28,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 203 [2021-03-25 04:37:28,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:28,708 INFO L129 PetriNetUnfolder]: 165/312 cut-off events. [2021-03-25 04:37:28,709 INFO L130 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2021-03-25 04:37:28,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 312 events. 165/312 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1515 event pairs, 82 based on Foata normal form. 3/279 useless extension candidates. Maximal degree in co-relation 656. Up to 233 conditions per place. [2021-03-25 04:37:28,713 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 9 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2021-03-25 04:37:28,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 122 flow [2021-03-25 04:37:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:37:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:37:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2021-03-25 04:37:28,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2021-03-25 04:37:28,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 518 transitions. [2021-03-25 04:37:28,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 518 transitions. [2021-03-25 04:37:28,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:28,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 518 transitions. [2021-03-25 04:37:28,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,719 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 86 flow. Second operand 3 states and 518 transitions. [2021-03-25 04:37:28,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 122 flow [2021-03-25 04:37:28,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:37:28,721 INFO L241 Difference]: Finished difference. Result has 42 places, 32 transitions, 108 flow [2021-03-25 04:37:28,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2021-03-25 04:37:28,722 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -17 predicate places. [2021-03-25 04:37:28,722 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:28,722 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 32 transitions, 108 flow [2021-03-25 04:37:28,722 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 32 transitions, 108 flow [2021-03-25 04:37:28,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 108 flow [2021-03-25 04:37:28,735 INFO L129 PetriNetUnfolder]: 27/93 cut-off events. [2021-03-25 04:37:28,735 INFO L130 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2021-03-25 04:37:28,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 93 events. 27/93 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 366 event pairs, 13 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 189. Up to 42 conditions per place. [2021-03-25 04:37:28,736 INFO L142 LiptonReduction]: Number of co-enabled transitions 480 [2021-03-25 04:37:28,739 INFO L154 LiptonReduction]: Checked pairs total: 295 [2021-03-25 04:37:28,739 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:28,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 04:37:28,740 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 108 flow [2021-03-25 04:37:28,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:28,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:28,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:37:28,741 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:28,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:28,741 INFO L82 PathProgramCache]: Analyzing trace with hash -66759146, now seen corresponding path program 1 times [2021-03-25 04:37:28,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:28,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797928166] [2021-03-25 04:37:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:28,830 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-25 04:37:28,832 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-25 04:37:28,865 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.5 percent of original size [2021-03-25 04:37:28,867 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.0 percent of original size 66 [2021-03-25 04:37:28,919 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-03-25 04:37:28,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 04:37:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:28,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797928166] [2021-03-25 04:37:28,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:28,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:37:28,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54898554] [2021-03-25 04:37:28,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:37:28,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:28,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:37:28,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:37:28,951 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 203 [2021-03-25 04:37:28,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 159.8) internal successors, (799), 5 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:28,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:28,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 203 [2021-03-25 04:37:28,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:29,091 INFO L129 PetriNetUnfolder]: 178/337 cut-off events. [2021-03-25 04:37:29,091 INFO L130 PetriNetUnfolder]: For 237/292 co-relation queries the response was YES. [2021-03-25 04:37:29,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 337 events. 178/337 cut-off events. For 237/292 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1612 event pairs, 69 based on Foata normal form. 12/319 useless extension candidates. Maximal degree in co-relation 858. Up to 231 conditions per place. [2021-03-25 04:37:29,095 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 11 selfloop transitions, 14 changer transitions 0/46 dead transitions. [2021-03-25 04:37:29,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 46 transitions, 202 flow [2021-03-25 04:37:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 819 transitions. [2021-03-25 04:37:29,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8068965517241379 [2021-03-25 04:37:29,098 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 819 transitions. [2021-03-25 04:37:29,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 819 transitions. [2021-03-25 04:37:29,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:29,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 819 transitions. [2021-03-25 04:37:29,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,103 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,103 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 108 flow. Second operand 5 states and 819 transitions. [2021-03-25 04:37:29,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 46 transitions, 202 flow [2021-03-25 04:37:29,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 46 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:29,109 INFO L241 Difference]: Finished difference. Result has 48 places, 43 transitions, 204 flow [2021-03-25 04:37:29,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2021-03-25 04:37:29,109 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -11 predicate places. [2021-03-25 04:37:29,113 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:29,113 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 43 transitions, 204 flow [2021-03-25 04:37:29,114 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 43 transitions, 204 flow [2021-03-25 04:37:29,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 43 transitions, 204 flow [2021-03-25 04:37:29,136 INFO L129 PetriNetUnfolder]: 47/140 cut-off events. [2021-03-25 04:37:29,136 INFO L130 PetriNetUnfolder]: For 377/460 co-relation queries the response was YES. [2021-03-25 04:37:29,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 140 events. 47/140 cut-off events. For 377/460 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 687 event pairs, 10 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 415. Up to 64 conditions per place. [2021-03-25 04:37:29,138 INFO L142 LiptonReduction]: Number of co-enabled transitions 682 [2021-03-25 04:37:29,144 INFO L154 LiptonReduction]: Checked pairs total: 423 [2021-03-25 04:37:29,144 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:29,144 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 04:37:29,148 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 204 flow [2021-03-25 04:37:29,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 159.8) internal successors, (799), 5 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:29,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:29,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:37:29,149 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:29,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:29,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1728374206, now seen corresponding path program 1 times [2021-03-25 04:37:29,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:29,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379487842] [2021-03-25 04:37:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:29,283 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-03-25 04:37:29,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:37:29,294 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:37:29,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:37:29,308 INFO L142 QuantifierPusher]: treesize reduction 40, result has 56.0 percent of original size [2021-03-25 04:37:29,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 04:37:29,331 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-03-25 04:37:29,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 04:37:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:29,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379487842] [2021-03-25 04:37:29,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:29,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:29,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467596780] [2021-03-25 04:37:29,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:29,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:29,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:29,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:29,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 203 [2021-03-25 04:37:29,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:29,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 203 [2021-03-25 04:37:29,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:29,497 INFO L129 PetriNetUnfolder]: 194/373 cut-off events. [2021-03-25 04:37:29,498 INFO L130 PetriNetUnfolder]: For 755/928 co-relation queries the response was YES. [2021-03-25 04:37:29,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 373 events. 194/373 cut-off events. For 755/928 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1821 event pairs, 43 based on Foata normal form. 17/362 useless extension candidates. Maximal degree in co-relation 1311. Up to 221 conditions per place. [2021-03-25 04:37:29,502 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 21 selfloop transitions, 16 changer transitions 0/58 dead transitions. [2021-03-25 04:37:29,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 368 flow [2021-03-25 04:37:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 827 transitions. [2021-03-25 04:37:29,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8147783251231527 [2021-03-25 04:37:29,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 827 transitions. [2021-03-25 04:37:29,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 827 transitions. [2021-03-25 04:37:29,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:29,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 827 transitions. [2021-03-25 04:37:29,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.4) internal successors, (827), 5 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,510 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:29,510 INFO L185 Difference]: Start difference. First operand has 48 places, 43 transitions, 204 flow. Second operand 5 states and 827 transitions. [2021-03-25 04:37:29,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 368 flow [2021-03-25 04:37:29,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 366 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 04:37:29,514 INFO L241 Difference]: Finished difference. Result has 54 places, 52 transitions, 315 flow [2021-03-25 04:37:29,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=315, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2021-03-25 04:37:29,515 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2021-03-25 04:37:29,515 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:29,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 52 transitions, 315 flow [2021-03-25 04:37:29,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 52 transitions, 315 flow [2021-03-25 04:37:29,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 52 transitions, 315 flow [2021-03-25 04:37:29,557 INFO L129 PetriNetUnfolder]: 153/328 cut-off events. [2021-03-25 04:37:29,557 INFO L130 PetriNetUnfolder]: For 882/969 co-relation queries the response was YES. [2021-03-25 04:37:29,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 328 events. 153/328 cut-off events. For 882/969 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1711 event pairs, 31 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 1195. Up to 167 conditions per place. [2021-03-25 04:37:29,563 INFO L142 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-25 04:37:29,802 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:37:30,212 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-25 04:37:30,337 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-25 04:37:30,390 INFO L154 LiptonReduction]: Checked pairs total: 1390 [2021-03-25 04:37:30,390 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:37:30,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 875 [2021-03-25 04:37:30,390 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 318 flow [2021-03-25 04:37:30,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:30,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:30,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:30,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:37:30,392 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1437535375, now seen corresponding path program 1 times [2021-03-25 04:37:30,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:30,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609557384] [2021-03-25 04:37:30,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:30,457 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:37:30,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:37:30,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:30,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:37:30,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:30,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:37:30,500 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-03-25 04:37:30,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 04:37:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:30,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609557384] [2021-03-25 04:37:30,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:30,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:30,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713012264] [2021-03-25 04:37:30,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:30,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:30,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:30,520 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2021-03-25 04:37:30,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:30,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:30,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2021-03-25 04:37:30,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:30,661 INFO L129 PetriNetUnfolder]: 198/385 cut-off events. [2021-03-25 04:37:30,661 INFO L130 PetriNetUnfolder]: For 1189/1514 co-relation queries the response was YES. [2021-03-25 04:37:30,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1670 conditions, 385 events. 198/385 cut-off events. For 1189/1514 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1928 event pairs, 31 based on Foata normal form. 20/375 useless extension candidates. Maximal degree in co-relation 1649. Up to 239 conditions per place. [2021-03-25 04:37:30,665 INFO L132 encePairwiseOnDemand]: 197/204 looper letters, 24 selfloop transitions, 15 changer transitions 0/60 dead transitions. [2021-03-25 04:37:30,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 461 flow [2021-03-25 04:37:30,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:37:30,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:37:30,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 667 transitions. [2021-03-25 04:37:30,671 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8174019607843137 [2021-03-25 04:37:30,671 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 667 transitions. [2021-03-25 04:37:30,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 667 transitions. [2021-03-25 04:37:30,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:30,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 667 transitions. [2021-03-25 04:37:30,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:30,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:30,676 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:30,676 INFO L185 Difference]: Start difference. First operand has 54 places, 52 transitions, 318 flow. Second operand 4 states and 667 transitions. [2021-03-25 04:37:30,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 461 flow [2021-03-25 04:37:30,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 439 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:30,682 INFO L241 Difference]: Finished difference. Result has 57 places, 55 transitions, 361 flow [2021-03-25 04:37:30,682 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=361, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2021-03-25 04:37:30,682 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -2 predicate places. [2021-03-25 04:37:30,682 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:30,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 55 transitions, 361 flow [2021-03-25 04:37:30,683 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 55 transitions, 361 flow [2021-03-25 04:37:30,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 55 transitions, 361 flow [2021-03-25 04:37:30,727 INFO L129 PetriNetUnfolder]: 160/344 cut-off events. [2021-03-25 04:37:30,727 INFO L130 PetriNetUnfolder]: For 1303/1421 co-relation queries the response was YES. [2021-03-25 04:37:30,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1355 conditions, 344 events. 160/344 cut-off events. For 1303/1421 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1897 event pairs, 40 based on Foata normal form. 4/314 useless extension candidates. Maximal degree in co-relation 1334. Up to 165 conditions per place. [2021-03-25 04:37:30,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 826 [2021-03-25 04:37:30,948 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:37:31,305 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 04:37:31,413 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-25 04:37:31,435 INFO L154 LiptonReduction]: Checked pairs total: 1404 [2021-03-25 04:37:31,436 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:37:31,436 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 754 [2021-03-25 04:37:31,436 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 367 flow [2021-03-25 04:37:31,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,437 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:31,437 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:31,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:37:31,437 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:31,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1527946255, now seen corresponding path program 2 times [2021-03-25 04:37:31,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:31,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932196463] [2021-03-25 04:37:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:31,498 INFO L142 QuantifierPusher]: treesize reduction 30, result has 38.8 percent of original size [2021-03-25 04:37:31,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:37:31,510 INFO L142 QuantifierPusher]: treesize reduction 30, result has 42.3 percent of original size [2021-03-25 04:37:31,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 04:37:31,527 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:37:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:37:31,539 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:37:31,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:37:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:31,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932196463] [2021-03-25 04:37:31,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:31,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:31,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218780491] [2021-03-25 04:37:31,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:31,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:31,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:31,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:31,565 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 205 [2021-03-25 04:37:31,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 158.83333333333334) internal successors, (953), 6 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:31,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 205 [2021-03-25 04:37:31,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:31,728 INFO L129 PetriNetUnfolder]: 193/382 cut-off events. [2021-03-25 04:37:31,728 INFO L130 PetriNetUnfolder]: For 1564/2010 co-relation queries the response was YES. [2021-03-25 04:37:31,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 382 events. 193/382 cut-off events. For 1564/2010 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1896 event pairs, 39 based on Foata normal form. 26/376 useless extension candidates. Maximal degree in co-relation 1731. Up to 239 conditions per place. [2021-03-25 04:37:31,733 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 23 selfloop transitions, 17 changer transitions 0/61 dead transitions. [2021-03-25 04:37:31,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 507 flow [2021-03-25 04:37:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:37:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:37:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 652 transitions. [2021-03-25 04:37:31,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7951219512195122 [2021-03-25 04:37:31,736 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 652 transitions. [2021-03-25 04:37:31,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 652 transitions. [2021-03-25 04:37:31,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:31,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 652 transitions. [2021-03-25 04:37:31,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 205.0) internal successors, (1025), 5 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,740 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 205.0) internal successors, (1025), 5 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,740 INFO L185 Difference]: Start difference. First operand has 57 places, 55 transitions, 367 flow. Second operand 4 states and 652 transitions. [2021-03-25 04:37:31,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 507 flow [2021-03-25 04:37:31,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 493 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:31,745 INFO L241 Difference]: Finished difference. Result has 60 places, 57 transitions, 423 flow [2021-03-25 04:37:31,745 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=423, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2021-03-25 04:37:31,745 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2021-03-25 04:37:31,745 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:31,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 57 transitions, 423 flow [2021-03-25 04:37:31,746 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 57 transitions, 423 flow [2021-03-25 04:37:31,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 57 transitions, 423 flow [2021-03-25 04:37:31,789 INFO L129 PetriNetUnfolder]: 162/345 cut-off events. [2021-03-25 04:37:31,789 INFO L130 PetriNetUnfolder]: For 1978/2177 co-relation queries the response was YES. [2021-03-25 04:37:31,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 345 events. 162/345 cut-off events. For 1978/2177 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1815 event pairs, 32 based on Foata normal form. 10/319 useless extension candidates. Maximal degree in co-relation 1466. Up to 165 conditions per place. [2021-03-25 04:37:31,795 INFO L142 LiptonReduction]: Number of co-enabled transitions 844 [2021-03-25 04:37:31,812 INFO L154 LiptonReduction]: Checked pairs total: 864 [2021-03-25 04:37:31,812 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:31,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 04:37:31,813 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 423 flow [2021-03-25 04:37:31,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 158.83333333333334) internal successors, (953), 6 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:31,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:31,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:37:31,814 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:31,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:31,814 INFO L82 PathProgramCache]: Analyzing trace with hash 711186094, now seen corresponding path program 2 times [2021-03-25 04:37:31,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:31,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737476441] [2021-03-25 04:37:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:31,898 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:37:31,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:37:31,907 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:37:31,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:37:31,919 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:37:31,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:37:31,950 INFO L142 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-03-25 04:37:31,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 04:37:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:31,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737476441] [2021-03-25 04:37:31,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:31,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:31,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325802343] [2021-03-25 04:37:31,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:31,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:31,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:31,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:31,984 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 205 [2021-03-25 04:37:31,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 423 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:31,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:31,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 205 [2021-03-25 04:37:31,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:32,152 INFO L129 PetriNetUnfolder]: 188/392 cut-off events. [2021-03-25 04:37:32,152 INFO L130 PetriNetUnfolder]: For 1941/2470 co-relation queries the response was YES. [2021-03-25 04:37:32,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1844 conditions, 392 events. 188/392 cut-off events. For 1941/2470 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2065 event pairs, 20 based on Foata normal form. 40/400 useless extension candidates. Maximal degree in co-relation 1819. Up to 219 conditions per place. [2021-03-25 04:37:32,157 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 23 selfloop transitions, 21 changer transitions 0/65 dead transitions. [2021-03-25 04:37:32,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 65 transitions, 586 flow [2021-03-25 04:37:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 834 transitions. [2021-03-25 04:37:32,160 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8136585365853658 [2021-03-25 04:37:32,160 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 834 transitions. [2021-03-25 04:37:32,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 834 transitions. [2021-03-25 04:37:32,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:32,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 834 transitions. [2021-03-25 04:37:32,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,164 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,164 INFO L185 Difference]: Start difference. First operand has 60 places, 57 transitions, 423 flow. Second operand 5 states and 834 transitions. [2021-03-25 04:37:32,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 65 transitions, 586 flow [2021-03-25 04:37:32,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 65 transitions, 574 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:32,169 INFO L241 Difference]: Finished difference. Result has 65 places, 61 transitions, 517 flow [2021-03-25 04:37:32,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=517, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2021-03-25 04:37:32,171 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 6 predicate places. [2021-03-25 04:37:32,171 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:32,171 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 517 flow [2021-03-25 04:37:32,171 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 517 flow [2021-03-25 04:37:32,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 517 flow [2021-03-25 04:37:32,216 INFO L129 PetriNetUnfolder]: 153/340 cut-off events. [2021-03-25 04:37:32,217 INFO L130 PetriNetUnfolder]: For 2486/2724 co-relation queries the response was YES. [2021-03-25 04:37:32,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 340 events. 153/340 cut-off events. For 2486/2724 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1839 event pairs, 27 based on Foata normal form. 10/314 useless extension candidates. Maximal degree in co-relation 1610. Up to 157 conditions per place. [2021-03-25 04:37:32,223 INFO L142 LiptonReduction]: Number of co-enabled transitions 886 [2021-03-25 04:37:32,239 INFO L154 LiptonReduction]: Checked pairs total: 951 [2021-03-25 04:37:32,240 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:32,240 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 04:37:32,240 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 517 flow [2021-03-25 04:37:32,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:32,241 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:32,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:37:32,241 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:32,242 INFO L82 PathProgramCache]: Analyzing trace with hash 648164303, now seen corresponding path program 1 times [2021-03-25 04:37:32,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:32,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454075003] [2021-03-25 04:37:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:32,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:37:32,328 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:37:32,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:37:32,356 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:37:32,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:37:32,384 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:37:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:37:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:32,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454075003] [2021-03-25 04:37:32,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:32,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:32,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127572832] [2021-03-25 04:37:32,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:32,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:32,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:32,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:32,417 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 205 [2021-03-25 04:37:32,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:32,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 205 [2021-03-25 04:37:32,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:32,614 INFO L129 PetriNetUnfolder]: 202/409 cut-off events. [2021-03-25 04:37:32,614 INFO L130 PetriNetUnfolder]: For 2831/3502 co-relation queries the response was YES. [2021-03-25 04:37:32,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 409 events. 202/409 cut-off events. For 2831/3502 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2096 event pairs, 21 based on Foata normal form. 43/420 useless extension candidates. Maximal degree in co-relation 2149. Up to 237 conditions per place. [2021-03-25 04:37:32,620 INFO L132 encePairwiseOnDemand]: 195/205 looper letters, 23 selfloop transitions, 26 changer transitions 0/70 dead transitions. [2021-03-25 04:37:32,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 70 transitions, 702 flow [2021-03-25 04:37:32,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:32,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 804 transitions. [2021-03-25 04:37:32,623 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.784390243902439 [2021-03-25 04:37:32,623 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 804 transitions. [2021-03-25 04:37:32,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 804 transitions. [2021-03-25 04:37:32,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:32,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 804 transitions. [2021-03-25 04:37:32,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.8) internal successors, (804), 5 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,628 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,628 INFO L185 Difference]: Start difference. First operand has 65 places, 61 transitions, 517 flow. Second operand 5 states and 804 transitions. [2021-03-25 04:37:32,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 70 transitions, 702 flow [2021-03-25 04:37:32,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 648 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-03-25 04:37:32,636 INFO L241 Difference]: Finished difference. Result has 68 places, 67 transitions, 597 flow [2021-03-25 04:37:32,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=597, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2021-03-25 04:37:32,637 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 9 predicate places. [2021-03-25 04:37:32,637 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:32,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 67 transitions, 597 flow [2021-03-25 04:37:32,637 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 67 transitions, 597 flow [2021-03-25 04:37:32,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 597 flow [2021-03-25 04:37:32,686 INFO L129 PetriNetUnfolder]: 178/378 cut-off events. [2021-03-25 04:37:32,686 INFO L130 PetriNetUnfolder]: For 2748/3064 co-relation queries the response was YES. [2021-03-25 04:37:32,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 378 events. 178/378 cut-off events. For 2748/3064 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2021 event pairs, 21 based on Foata normal form. 13/355 useless extension candidates. Maximal degree in co-relation 1815. Up to 157 conditions per place. [2021-03-25 04:37:32,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 964 [2021-03-25 04:37:32,726 INFO L154 LiptonReduction]: Checked pairs total: 1287 [2021-03-25 04:37:32,726 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:32,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 04:37:32,728 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 597 flow [2021-03-25 04:37:32,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:32,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:32,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:37:32,728 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:32,729 INFO L82 PathProgramCache]: Analyzing trace with hash -331916359, now seen corresponding path program 2 times [2021-03-25 04:37:32,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:32,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685380206] [2021-03-25 04:37:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:32,791 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:37:32,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:37:32,801 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:37:32,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:37:32,810 INFO L142 QuantifierPusher]: treesize reduction 30, result has 38.8 percent of original size [2021-03-25 04:37:32,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:37:32,824 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.1 percent of original size [2021-03-25 04:37:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 04:37:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:32,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685380206] [2021-03-25 04:37:32,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:32,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:32,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406884156] [2021-03-25 04:37:32,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:32,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:32,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:32,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:32,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 205 [2021-03-25 04:37:32,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 597 flow. Second operand has 6 states, 6 states have (on average 155.83333333333334) internal successors, (935), 6 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:32,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:32,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 205 [2021-03-25 04:37:32,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:33,173 INFO L129 PetriNetUnfolder]: 204/430 cut-off events. [2021-03-25 04:37:33,174 INFO L130 PetriNetUnfolder]: For 2930/3719 co-relation queries the response was YES. [2021-03-25 04:37:33,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 430 events. 204/430 cut-off events. For 2930/3719 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2297 event pairs, 14 based on Foata normal form. 70/469 useless extension candidates. Maximal degree in co-relation 2287. Up to 232 conditions per place. [2021-03-25 04:37:33,181 INFO L132 encePairwiseOnDemand]: 195/205 looper letters, 24 selfloop transitions, 41 changer transitions 0/86 dead transitions. [2021-03-25 04:37:33,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 917 flow [2021-03-25 04:37:33,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:37:33,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:37:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1274 transitions. [2021-03-25 04:37:33,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.776829268292683 [2021-03-25 04:37:33,185 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1274 transitions. [2021-03-25 04:37:33,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1274 transitions. [2021-03-25 04:37:33,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:33,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1274 transitions. [2021-03-25 04:37:33,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.25) internal successors, (1274), 8 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 205.0) internal successors, (1845), 9 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,191 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 205.0) internal successors, (1845), 9 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,191 INFO L185 Difference]: Start difference. First operand has 68 places, 67 transitions, 597 flow. Second operand 8 states and 1274 transitions. [2021-03-25 04:37:33,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 917 flow [2021-03-25 04:37:33,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 86 transitions, 855 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-03-25 04:37:33,201 INFO L241 Difference]: Finished difference. Result has 75 places, 80 transitions, 800 flow [2021-03-25 04:37:33,201 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=800, PETRI_PLACES=75, PETRI_TRANSITIONS=80} [2021-03-25 04:37:33,202 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 16 predicate places. [2021-03-25 04:37:33,202 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:33,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 80 transitions, 800 flow [2021-03-25 04:37:33,202 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 80 transitions, 800 flow [2021-03-25 04:37:33,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 80 transitions, 800 flow [2021-03-25 04:37:33,256 INFO L129 PetriNetUnfolder]: 185/400 cut-off events. [2021-03-25 04:37:33,256 INFO L130 PetriNetUnfolder]: For 3679/4001 co-relation queries the response was YES. [2021-03-25 04:37:33,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 400 events. 185/400 cut-off events. For 3679/4001 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2204 event pairs, 7 based on Foata normal form. 29/392 useless extension candidates. Maximal degree in co-relation 2086. Up to 165 conditions per place. [2021-03-25 04:37:33,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 1098 [2021-03-25 04:37:33,300 INFO L154 LiptonReduction]: Checked pairs total: 1894 [2021-03-25 04:37:33,300 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:33,300 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-25 04:37:33,300 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 80 transitions, 800 flow [2021-03-25 04:37:33,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 155.83333333333334) internal successors, (935), 6 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,301 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:33,301 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:33,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:37:33,301 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:33,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1002463776, now seen corresponding path program 1 times [2021-03-25 04:37:33,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:33,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945608119] [2021-03-25 04:37:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:33,369 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 04:37:33,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 04:37:33,398 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 04:37:33,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 04:37:33,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:33,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:37:33,434 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-03-25 04:37:33,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 04:37:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:33,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945608119] [2021-03-25 04:37:33,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:33,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:33,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158021189] [2021-03-25 04:37:33,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:33,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:33,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:33,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:33,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 205 [2021-03-25 04:37:33,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 80 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:33,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 205 [2021-03-25 04:37:33,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:33,624 INFO L129 PetriNetUnfolder]: 196/419 cut-off events. [2021-03-25 04:37:33,625 INFO L130 PetriNetUnfolder]: For 3235/4057 co-relation queries the response was YES. [2021-03-25 04:37:33,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2411 conditions, 419 events. 196/419 cut-off events. For 3235/4057 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2241 event pairs, 17 based on Foata normal form. 42/429 useless extension candidates. Maximal degree in co-relation 2379. Up to 265 conditions per place. [2021-03-25 04:37:33,631 INFO L132 encePairwiseOnDemand]: 199/205 looper letters, 46 selfloop transitions, 16 changer transitions 0/83 dead transitions. [2021-03-25 04:37:33,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 83 transitions, 948 flow [2021-03-25 04:37:33,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:37:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:37:33,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 658 transitions. [2021-03-25 04:37:33,634 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.802439024390244 [2021-03-25 04:37:33,634 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 658 transitions. [2021-03-25 04:37:33,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 658 transitions. [2021-03-25 04:37:33,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:33,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 658 transitions. [2021-03-25 04:37:33,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 164.5) internal successors, (658), 4 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 205.0) internal successors, (1025), 5 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,637 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 205.0) internal successors, (1025), 5 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,637 INFO L185 Difference]: Start difference. First operand has 75 places, 80 transitions, 800 flow. Second operand 4 states and 658 transitions. [2021-03-25 04:37:33,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 83 transitions, 948 flow [2021-03-25 04:37:33,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 83 transitions, 897 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:33,647 INFO L241 Difference]: Finished difference. Result has 78 places, 80 transitions, 796 flow [2021-03-25 04:37:33,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=796, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2021-03-25 04:37:33,647 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 19 predicate places. [2021-03-25 04:37:33,647 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:33,647 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 80 transitions, 796 flow [2021-03-25 04:37:33,648 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 80 transitions, 796 flow [2021-03-25 04:37:33,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 80 transitions, 796 flow [2021-03-25 04:37:33,697 INFO L129 PetriNetUnfolder]: 175/383 cut-off events. [2021-03-25 04:37:33,697 INFO L130 PetriNetUnfolder]: For 3804/4039 co-relation queries the response was YES. [2021-03-25 04:37:33,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 383 events. 175/383 cut-off events. For 3804/4039 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2101 event pairs, 9 based on Foata normal form. 9/355 useless extension candidates. Maximal degree in co-relation 1960. Up to 160 conditions per place. [2021-03-25 04:37:33,705 INFO L142 LiptonReduction]: Number of co-enabled transitions 1098 [2021-03-25 04:37:33,747 INFO L154 LiptonReduction]: Checked pairs total: 1918 [2021-03-25 04:37:33,747 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:33,747 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-03-25 04:37:33,748 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 796 flow [2021-03-25 04:37:33,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:33,749 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:33,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:37:33,749 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:33,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:33,749 INFO L82 PathProgramCache]: Analyzing trace with hash 792347279, now seen corresponding path program 1 times [2021-03-25 04:37:33,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:33,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988388650] [2021-03-25 04:37:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:33,814 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:37:33,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:37:33,823 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:37:33,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:37:33,837 INFO L142 QuantifierPusher]: treesize reduction 31, result has 60.8 percent of original size [2021-03-25 04:37:33,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 04:37:33,878 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-03-25 04:37:33,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 04:37:33,915 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:37:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:37:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:33,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988388650] [2021-03-25 04:37:33,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:33,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:37:33,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937347987] [2021-03-25 04:37:33,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:37:33,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:33,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:37:33,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:37:33,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 205 [2021-03-25 04:37:33,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 796 flow. Second operand has 7 states, 7 states have (on average 157.85714285714286) internal successors, (1105), 7 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:33,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:33,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 205 [2021-03-25 04:37:33,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:34,099 INFO L129 PetriNetUnfolder]: 204/445 cut-off events. [2021-03-25 04:37:34,099 INFO L130 PetriNetUnfolder]: For 3815/4603 co-relation queries the response was YES. [2021-03-25 04:37:34,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2508 conditions, 445 events. 204/445 cut-off events. For 3815/4603 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2492 event pairs, 17 based on Foata normal form. 57/472 useless extension candidates. Maximal degree in co-relation 2474. Up to 253 conditions per place. [2021-03-25 04:37:34,106 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 42 selfloop transitions, 23 changer transitions 0/86 dead transitions. [2021-03-25 04:37:34,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 86 transitions, 980 flow [2021-03-25 04:37:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 807 transitions. [2021-03-25 04:37:34,108 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7873170731707317 [2021-03-25 04:37:34,108 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 807 transitions. [2021-03-25 04:37:34,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 807 transitions. [2021-03-25 04:37:34,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:34,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 807 transitions. [2021-03-25 04:37:34,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,112 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,113 INFO L185 Difference]: Start difference. First operand has 78 places, 80 transitions, 796 flow. Second operand 5 states and 807 transitions. [2021-03-25 04:37:34,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 86 transitions, 980 flow [2021-03-25 04:37:34,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 86 transitions, 959 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:37:34,123 INFO L241 Difference]: Finished difference. Result has 81 places, 82 transitions, 861 flow [2021-03-25 04:37:34,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=861, PETRI_PLACES=81, PETRI_TRANSITIONS=82} [2021-03-25 04:37:34,124 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 22 predicate places. [2021-03-25 04:37:34,124 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:34,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 82 transitions, 861 flow [2021-03-25 04:37:34,124 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 82 transitions, 861 flow [2021-03-25 04:37:34,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 82 transitions, 861 flow [2021-03-25 04:37:34,178 INFO L129 PetriNetUnfolder]: 183/412 cut-off events. [2021-03-25 04:37:34,178 INFO L130 PetriNetUnfolder]: For 4389/4659 co-relation queries the response was YES. [2021-03-25 04:37:34,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2252 conditions, 412 events. 183/412 cut-off events. For 4389/4659 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2352 event pairs, 18 based on Foata normal form. 42/418 useless extension candidates. Maximal degree in co-relation 2219. Up to 173 conditions per place. [2021-03-25 04:37:34,208 INFO L142 LiptonReduction]: Number of co-enabled transitions 1134 [2021-03-25 04:37:34,242 INFO L154 LiptonReduction]: Checked pairs total: 2102 [2021-03-25 04:37:34,242 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:34,242 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-25 04:37:34,243 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 82 transitions, 861 flow [2021-03-25 04:37:34,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 157.85714285714286) internal successors, (1105), 7 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:34,243 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:34,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:37:34,244 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:34,244 INFO L82 PathProgramCache]: Analyzing trace with hash 790784975, now seen corresponding path program 2 times [2021-03-25 04:37:34,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:34,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669422519] [2021-03-25 04:37:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:34,318 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:37:34,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:37:34,328 INFO L142 QuantifierPusher]: treesize reduction 30, result has 38.8 percent of original size [2021-03-25 04:37:34,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:37:34,340 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:37:34,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:37:34,371 INFO L142 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-03-25 04:37:34,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 04:37:34,408 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.7 percent of original size [2021-03-25 04:37:34,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 04:37:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:34,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669422519] [2021-03-25 04:37:34,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:34,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:37:34,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084321142] [2021-03-25 04:37:34,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:37:34,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:34,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:37:34,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:37:34,447 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 205 [2021-03-25 04:37:34,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 82 transitions, 861 flow. Second operand has 7 states, 7 states have (on average 160.85714285714286) internal successors, (1126), 7 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:34,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 205 [2021-03-25 04:37:34,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:34,643 INFO L129 PetriNetUnfolder]: 206/455 cut-off events. [2021-03-25 04:37:34,643 INFO L130 PetriNetUnfolder]: For 4362/5187 co-relation queries the response was YES. [2021-03-25 04:37:34,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2700 conditions, 455 events. 206/455 cut-off events. For 4362/5187 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2562 event pairs, 19 based on Foata normal form. 61/485 useless extension candidates. Maximal degree in co-relation 2665. Up to 251 conditions per place. [2021-03-25 04:37:34,650 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 38 selfloop transitions, 29 changer transitions 0/88 dead transitions. [2021-03-25 04:37:34,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 88 transitions, 1053 flow [2021-03-25 04:37:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 823 transitions. [2021-03-25 04:37:34,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8029268292682927 [2021-03-25 04:37:34,653 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 823 transitions. [2021-03-25 04:37:34,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 823 transitions. [2021-03-25 04:37:34,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:34,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 823 transitions. [2021-03-25 04:37:34,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.6) internal successors, (823), 5 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,658 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,658 INFO L185 Difference]: Start difference. First operand has 81 places, 82 transitions, 861 flow. Second operand 5 states and 823 transitions. [2021-03-25 04:37:34,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 88 transitions, 1053 flow [2021-03-25 04:37:34,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 88 transitions, 1007 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 04:37:34,670 INFO L241 Difference]: Finished difference. Result has 83 places, 84 transitions, 924 flow [2021-03-25 04:37:34,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=924, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2021-03-25 04:37:34,670 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 24 predicate places. [2021-03-25 04:37:34,670 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:34,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 84 transitions, 924 flow [2021-03-25 04:37:34,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 84 transitions, 924 flow [2021-03-25 04:37:34,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 924 flow [2021-03-25 04:37:34,727 INFO L129 PetriNetUnfolder]: 182/418 cut-off events. [2021-03-25 04:37:34,727 INFO L130 PetriNetUnfolder]: For 4941/5267 co-relation queries the response was YES. [2021-03-25 04:37:34,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2387 conditions, 418 events. 182/418 cut-off events. For 4941/5267 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2350 event pairs, 14 based on Foata normal form. 44/427 useless extension candidates. Maximal degree in co-relation 2353. Up to 178 conditions per place. [2021-03-25 04:37:34,735 INFO L142 LiptonReduction]: Number of co-enabled transitions 1158 [2021-03-25 04:37:34,774 INFO L154 LiptonReduction]: Checked pairs total: 2414 [2021-03-25 04:37:34,774 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:34,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 04:37:34,775 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 924 flow [2021-03-25 04:37:34,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 160.85714285714286) internal successors, (1126), 7 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:34,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:34,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:37:34,787 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:34,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:34,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1200904817, now seen corresponding path program 1 times [2021-03-25 04:37:34,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:34,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672713713] [2021-03-25 04:37:34,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:34,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:34,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:34,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:34,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:34,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:34,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:34,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672713713] [2021-03-25 04:37:34,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:34,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:37:34,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249971182] [2021-03-25 04:37:34,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:37:34,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:34,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:37:34,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:37:34,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 205 [2021-03-25 04:37:34,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 924 flow. Second operand has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:34,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 205 [2021-03-25 04:37:34,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:34,962 INFO L129 PetriNetUnfolder]: 274/631 cut-off events. [2021-03-25 04:37:34,962 INFO L130 PetriNetUnfolder]: For 10198/10649 co-relation queries the response was YES. [2021-03-25 04:37:34,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3435 conditions, 631 events. 274/631 cut-off events. For 10198/10649 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4023 event pairs, 20 based on Foata normal form. 98/679 useless extension candidates. Maximal degree in co-relation 3399. Up to 280 conditions per place. [2021-03-25 04:37:34,971 INFO L132 encePairwiseOnDemand]: 202/205 looper letters, 3 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2021-03-25 04:37:34,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 936 flow [2021-03-25 04:37:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:37:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:37:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 706 transitions. [2021-03-25 04:37:34,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8609756097560975 [2021-03-25 04:37:34,974 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 706 transitions. [2021-03-25 04:37:34,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 706 transitions. [2021-03-25 04:37:34,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:34,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 706 transitions. [2021-03-25 04:37:34,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 205.0) internal successors, (1025), 5 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,978 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 205.0) internal successors, (1025), 5 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:34,978 INFO L185 Difference]: Start difference. First operand has 83 places, 84 transitions, 924 flow. Second operand 4 states and 706 transitions. [2021-03-25 04:37:34,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 936 flow [2021-03-25 04:37:34,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 85 transitions, 879 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-25 04:37:34,994 INFO L241 Difference]: Finished difference. Result has 85 places, 85 transitions, 880 flow [2021-03-25 04:37:34,994 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=880, PETRI_PLACES=85, PETRI_TRANSITIONS=85} [2021-03-25 04:37:34,994 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 26 predicate places. [2021-03-25 04:37:34,994 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:34,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 880 flow [2021-03-25 04:37:34,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 880 flow [2021-03-25 04:37:34,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 880 flow [2021-03-25 04:37:35,076 INFO L129 PetriNetUnfolder]: 273/633 cut-off events. [2021-03-25 04:37:35,076 INFO L130 PetriNetUnfolder]: For 6997/7422 co-relation queries the response was YES. [2021-03-25 04:37:35,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3225 conditions, 633 events. 273/633 cut-off events. For 6997/7422 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4170 event pairs, 13 based on Foata normal form. 73/654 useless extension candidates. Maximal degree in co-relation 3190. Up to 277 conditions per place. [2021-03-25 04:37:35,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 1186 [2021-03-25 04:37:35,143 INFO L154 LiptonReduction]: Checked pairs total: 1492 [2021-03-25 04:37:35,143 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:35,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 149 [2021-03-25 04:37:35,143 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 85 transitions, 880 flow [2021-03-25 04:37:35,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:35,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:35,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:35,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:37:35,144 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash -600355373, now seen corresponding path program 2 times [2021-03-25 04:37:35,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:35,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073820232] [2021-03-25 04:37:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:35,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:35,185 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:37:35,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:37:35,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:35,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:35,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073820232] [2021-03-25 04:37:35,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:35,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:37:35,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731641637] [2021-03-25 04:37:35,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:37:35,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:35,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:37:35,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:37:35,194 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 205 [2021-03-25 04:37:35,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 880 flow. Second operand has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:35,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:35,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 205 [2021-03-25 04:37:35,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:35,578 INFO L129 PetriNetUnfolder]: 1264/2345 cut-off events. [2021-03-25 04:37:35,578 INFO L130 PetriNetUnfolder]: For 14399/16026 co-relation queries the response was YES. [2021-03-25 04:37:35,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8830 conditions, 2345 events. 1264/2345 cut-off events. For 14399/16026 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 17836 event pairs, 464 based on Foata normal form. 386/2253 useless extension candidates. Maximal degree in co-relation 8793. Up to 1355 conditions per place. [2021-03-25 04:37:35,607 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 17 selfloop transitions, 10 changer transitions 0/99 dead transitions. [2021-03-25 04:37:35,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 99 transitions, 962 flow [2021-03-25 04:37:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:37:35,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:37:35,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 864 transitions. [2021-03-25 04:37:35,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8429268292682927 [2021-03-25 04:37:35,610 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 864 transitions. [2021-03-25 04:37:35,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 864 transitions. [2021-03-25 04:37:35,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:35,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 864 transitions. [2021-03-25 04:37:35,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:35,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:35,613 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:35,613 INFO L185 Difference]: Start difference. First operand has 85 places, 85 transitions, 880 flow. Second operand 5 states and 864 transitions. [2021-03-25 04:37:35,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 99 transitions, 962 flow [2021-03-25 04:37:35,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 99 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:35,635 INFO L241 Difference]: Finished difference. Result has 91 places, 94 transitions, 974 flow [2021-03-25 04:37:35,635 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=974, PETRI_PLACES=91, PETRI_TRANSITIONS=94} [2021-03-25 04:37:35,636 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 32 predicate places. [2021-03-25 04:37:35,636 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:35,636 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 94 transitions, 974 flow [2021-03-25 04:37:35,636 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 94 transitions, 974 flow [2021-03-25 04:37:35,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 94 transitions, 974 flow [2021-03-25 04:37:35,838 INFO L129 PetriNetUnfolder]: 990/1917 cut-off events. [2021-03-25 04:37:35,838 INFO L130 PetriNetUnfolder]: For 14234/15589 co-relation queries the response was YES. [2021-03-25 04:37:35,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8858 conditions, 1917 events. 990/1917 cut-off events. For 14234/15589 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 14471 event pairs, 253 based on Foata normal form. 85/1717 useless extension candidates. Maximal degree in co-relation 8819. Up to 1016 conditions per place. [2021-03-25 04:37:35,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 1526 [2021-03-25 04:37:35,971 INFO L154 LiptonReduction]: Checked pairs total: 440 [2021-03-25 04:37:35,971 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:35,971 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 335 [2021-03-25 04:37:35,971 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 94 transitions, 974 flow [2021-03-25 04:37:35,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:35,972 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:35,972 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:35,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:37:35,972 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash -2106234218, now seen corresponding path program 1 times [2021-03-25 04:37:35,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:35,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59226815] [2021-03-25 04:37:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:36,039 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:37:36,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:37:36,048 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:37:36,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:37:36,058 INFO L142 QuantifierPusher]: treesize reduction 30, result has 38.8 percent of original size [2021-03-25 04:37:36,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:37:36,080 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-03-25 04:37:36,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 04:37:36,100 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-03-25 04:37:36,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 04:37:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:36,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59226815] [2021-03-25 04:37:36,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:36,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:37:36,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866260824] [2021-03-25 04:37:36,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:37:36,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:36,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:37:36,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:37:36,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 205 [2021-03-25 04:37:36,125 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 974 flow. Second operand has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:36,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:36,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 205 [2021-03-25 04:37:36,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:36,598 INFO L129 PetriNetUnfolder]: 1514/2819 cut-off events. [2021-03-25 04:37:36,598 INFO L130 PetriNetUnfolder]: For 25579/28207 co-relation queries the response was YES. [2021-03-25 04:37:36,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13744 conditions, 2819 events. 1514/2819 cut-off events. For 25579/28207 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 21756 event pairs, 479 based on Foata normal form. 302/2721 useless extension candidates. Maximal degree in co-relation 13703. Up to 1583 conditions per place. [2021-03-25 04:37:36,625 INFO L132 encePairwiseOnDemand]: 197/205 looper letters, 31 selfloop transitions, 39 changer transitions 0/101 dead transitions. [2021-03-25 04:37:36,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 101 transitions, 1196 flow [2021-03-25 04:37:36,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:37:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:37:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2021-03-25 04:37:36,628 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7934959349593496 [2021-03-25 04:37:36,628 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2021-03-25 04:37:36,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2021-03-25 04:37:36,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:36,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2021-03-25 04:37:36,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:36,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:36,632 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:36,632 INFO L185 Difference]: Start difference. First operand has 91 places, 94 transitions, 974 flow. Second operand 6 states and 976 transitions. [2021-03-25 04:37:36,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 101 transitions, 1196 flow [2021-03-25 04:37:36,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 101 transitions, 1191 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:37:36,671 INFO L241 Difference]: Finished difference. Result has 96 places, 96 transitions, 1115 flow [2021-03-25 04:37:36,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1115, PETRI_PLACES=96, PETRI_TRANSITIONS=96} [2021-03-25 04:37:36,671 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 37 predicate places. [2021-03-25 04:37:36,671 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:36,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 96 transitions, 1115 flow [2021-03-25 04:37:36,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 96 transitions, 1115 flow [2021-03-25 04:37:36,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 1115 flow [2021-03-25 04:37:36,858 INFO L129 PetriNetUnfolder]: 1155/2098 cut-off events. [2021-03-25 04:37:36,858 INFO L130 PetriNetUnfolder]: For 17605/19112 co-relation queries the response was YES. [2021-03-25 04:37:36,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9660 conditions, 2098 events. 1155/2098 cut-off events. For 17605/19112 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 15771 event pairs, 389 based on Foata normal form. 77/1823 useless extension candidates. Maximal degree in co-relation 9619. Up to 1310 conditions per place. [2021-03-25 04:37:36,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 1580 [2021-03-25 04:37:36,968 INFO L154 LiptonReduction]: Checked pairs total: 462 [2021-03-25 04:37:36,968 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:36,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 297 [2021-03-25 04:37:36,968 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 96 transitions, 1115 flow [2021-03-25 04:37:36,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:36,969 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:36,969 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:36,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:37:36,969 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:36,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1833171872, now seen corresponding path program 1 times [2021-03-25 04:37:36,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:36,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28034750] [2021-03-25 04:37:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:37,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:37,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:37,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:37,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:37,012 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:37:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:37:37,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:37,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:37,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28034750] [2021-03-25 04:37:37,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:37,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:37:37,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192393875] [2021-03-25 04:37:37,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:37:37,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:37,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:37:37,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:37:37,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 205 [2021-03-25 04:37:37,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 1115 flow. Second operand has 5 states, 5 states have (on average 168.8) internal successors, (844), 5 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:37,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:37,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 205 [2021-03-25 04:37:37,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:37,346 INFO L129 PetriNetUnfolder]: 1184/2337 cut-off events. [2021-03-25 04:37:37,346 INFO L130 PetriNetUnfolder]: For 16422/27493 co-relation queries the response was YES. [2021-03-25 04:37:37,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10679 conditions, 2337 events. 1184/2337 cut-off events. For 16422/27493 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 18746 event pairs, 126 based on Foata normal form. 914/2894 useless extension candidates. Maximal degree in co-relation 10636. Up to 1529 conditions per place. [2021-03-25 04:37:37,362 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 17 selfloop transitions, 19 changer transitions 5/102 dead transitions. [2021-03-25 04:37:37,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 102 transitions, 1125 flow [2021-03-25 04:37:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:37:37,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:37:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1210 transitions. [2021-03-25 04:37:37,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8432055749128919 [2021-03-25 04:37:37,365 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1210 transitions. [2021-03-25 04:37:37,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1210 transitions. [2021-03-25 04:37:37,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:37,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1210 transitions. [2021-03-25 04:37:37,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 172.85714285714286) internal successors, (1210), 7 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:37,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 205.0) internal successors, (1640), 8 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:37,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 205.0) internal successors, (1640), 8 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:37,370 INFO L185 Difference]: Start difference. First operand has 96 places, 96 transitions, 1115 flow. Second operand 7 states and 1210 transitions. [2021-03-25 04:37:37,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 102 transitions, 1125 flow [2021-03-25 04:37:37,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 102 transitions, 1080 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-25 04:37:37,398 INFO L241 Difference]: Finished difference. Result has 101 places, 91 transitions, 1021 flow [2021-03-25 04:37:37,398 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1021, PETRI_PLACES=101, PETRI_TRANSITIONS=91} [2021-03-25 04:37:37,398 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 42 predicate places. [2021-03-25 04:37:37,398 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:37,398 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 1021 flow [2021-03-25 04:37:37,399 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 1021 flow [2021-03-25 04:37:37,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 1021 flow [2021-03-25 04:37:37,585 INFO L129 PetriNetUnfolder]: 869/1856 cut-off events. [2021-03-25 04:37:37,586 INFO L130 PetriNetUnfolder]: For 14978/21846 co-relation queries the response was YES. [2021-03-25 04:37:37,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10017 conditions, 1856 events. 869/1856 cut-off events. For 14978/21846 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 15330 event pairs, 108 based on Foata normal form. 142/1783 useless extension candidates. Maximal degree in co-relation 9974. Up to 1220 conditions per place. [2021-03-25 04:37:37,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 1774 [2021-03-25 04:37:37,657 INFO L154 LiptonReduction]: Checked pairs total: 528 [2021-03-25 04:37:37,657 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:37,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-25 04:37:37,657 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 91 transitions, 1021 flow [2021-03-25 04:37:37,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 168.8) internal successors, (844), 5 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:37,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:37,658 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:37,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:37:37,658 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash -777399253, now seen corresponding path program 1 times [2021-03-25 04:37:37,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:37,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859522513] [2021-03-25 04:37:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:37,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:37,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:37,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:37,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:37,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859522513] [2021-03-25 04:37:37,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:37,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:37:37,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908137197] [2021-03-25 04:37:37,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:37:37,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:37,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:37:37,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:37:37,701 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 205 [2021-03-25 04:37:37,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 1021 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:37,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:37,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 205 [2021-03-25 04:37:37,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:38,016 INFO L129 PetriNetUnfolder]: 1361/2700 cut-off events. [2021-03-25 04:37:38,016 INFO L130 PetriNetUnfolder]: For 23105/34029 co-relation queries the response was YES. [2021-03-25 04:37:38,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14548 conditions, 2700 events. 1361/2700 cut-off events. For 23105/34029 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 22585 event pairs, 205 based on Foata normal form. 180/2491 useless extension candidates. Maximal degree in co-relation 14503. Up to 1898 conditions per place. [2021-03-25 04:37:38,044 INFO L132 encePairwiseOnDemand]: 202/205 looper letters, 3 selfloop transitions, 3 changer transitions 3/91 dead transitions. [2021-03-25 04:37:38,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 91 transitions, 1033 flow [2021-03-25 04:37:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:37:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:37:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-03-25 04:37:38,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2021-03-25 04:37:38,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-03-25 04:37:38,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-03-25 04:37:38,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:38,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-03-25 04:37:38,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,049 INFO L185 Difference]: Start difference. First operand has 101 places, 91 transitions, 1021 flow. Second operand 3 states and 558 transitions. [2021-03-25 04:37:38,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 91 transitions, 1033 flow [2021-03-25 04:37:38,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 91 transitions, 967 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-25 04:37:38,122 INFO L241 Difference]: Finished difference. Result has 99 places, 88 transitions, 920 flow [2021-03-25 04:37:38,122 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2021-03-25 04:37:38,122 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 40 predicate places. [2021-03-25 04:37:38,122 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:38,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 88 transitions, 920 flow [2021-03-25 04:37:38,125 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 88 transitions, 920 flow [2021-03-25 04:37:38,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 88 transitions, 920 flow [2021-03-25 04:37:38,354 INFO L129 PetriNetUnfolder]: 1338/2652 cut-off events. [2021-03-25 04:37:38,354 INFO L130 PetriNetUnfolder]: For 18725/21325 co-relation queries the response was YES. [2021-03-25 04:37:38,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12680 conditions, 2652 events. 1338/2652 cut-off events. For 18725/21325 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 22316 event pairs, 174 based on Foata normal form. 137/2410 useless extension candidates. Maximal degree in co-relation 12638. Up to 1613 conditions per place. [2021-03-25 04:37:38,389 INFO L142 LiptonReduction]: Number of co-enabled transitions 1750 [2021-03-25 04:37:38,480 INFO L154 LiptonReduction]: Checked pairs total: 428 [2021-03-25 04:37:38,480 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:37:38,481 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 359 [2021-03-25 04:37:38,481 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 920 flow [2021-03-25 04:37:38,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:38,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:38,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 04:37:38,482 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:38,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1586654308, now seen corresponding path program 1 times [2021-03-25 04:37:38,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:38,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428291297] [2021-03-25 04:37:38,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:38,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:38,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:38,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:38,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:38,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:38,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:38,529 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:37:38,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:37:38,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:38,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:38,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428291297] [2021-03-25 04:37:38,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:38,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:37:38,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382642758] [2021-03-25 04:37:38,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:37:38,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:38,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:37:38,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:37:38,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 205 [2021-03-25 04:37:38,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 920 flow. Second operand has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:38,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 205 [2021-03-25 04:37:38,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:38,943 INFO L129 PetriNetUnfolder]: 1443/2767 cut-off events. [2021-03-25 04:37:38,943 INFO L130 PetriNetUnfolder]: For 19828/37631 co-relation queries the response was YES. [2021-03-25 04:37:38,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13158 conditions, 2767 events. 1443/2767 cut-off events. For 19828/37631 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 22403 event pairs, 21 based on Foata normal form. 1418/3674 useless extension candidates. Maximal degree in co-relation 13114. Up to 1645 conditions per place. [2021-03-25 04:37:38,974 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 10 selfloop transitions, 28 changer transitions 6/97 dead transitions. [2021-03-25 04:37:38,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 97 transitions, 1025 flow [2021-03-25 04:37:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:37:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:37:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1556 transitions. [2021-03-25 04:37:38,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.843360433604336 [2021-03-25 04:37:38,977 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1556 transitions. [2021-03-25 04:37:38,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1556 transitions. [2021-03-25 04:37:38,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:38,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1556 transitions. [2021-03-25 04:37:38,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 172.88888888888889) internal successors, (1556), 9 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 205.0) internal successors, (2050), 10 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,983 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 205.0) internal successors, (2050), 10 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:38,983 INFO L185 Difference]: Start difference. First operand has 99 places, 88 transitions, 920 flow. Second operand 9 states and 1556 transitions. [2021-03-25 04:37:38,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 97 transitions, 1025 flow [2021-03-25 04:37:39,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 931 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-03-25 04:37:39,032 INFO L241 Difference]: Finished difference. Result has 99 places, 88 transitions, 868 flow [2021-03-25 04:37:39,032 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=868, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2021-03-25 04:37:39,032 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 40 predicate places. [2021-03-25 04:37:39,032 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:39,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 88 transitions, 868 flow [2021-03-25 04:37:39,033 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 88 transitions, 868 flow [2021-03-25 04:37:39,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 88 transitions, 868 flow [2021-03-25 04:37:39,197 INFO L129 PetriNetUnfolder]: 916/1991 cut-off events. [2021-03-25 04:37:39,197 INFO L130 PetriNetUnfolder]: For 16210/19374 co-relation queries the response was YES. [2021-03-25 04:37:39,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10783 conditions, 1991 events. 916/1991 cut-off events. For 16210/19374 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 17370 event pairs, 21 based on Foata normal form. 47/1747 useless extension candidates. Maximal degree in co-relation 10744. Up to 1203 conditions per place. [2021-03-25 04:37:39,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 1836 [2021-03-25 04:37:39,687 INFO L154 LiptonReduction]: Checked pairs total: 1042 [2021-03-25 04:37:39,687 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:37:39,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 655 [2021-03-25 04:37:39,687 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 85 transitions, 842 flow [2021-03-25 04:37:39,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:39,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:39,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:39,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 04:37:39,688 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:39,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1542002468, now seen corresponding path program 1 times [2021-03-25 04:37:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:39,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373122691] [2021-03-25 04:37:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:39,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:39,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:39,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:39,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:39,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:39,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:39,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:39,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:39,766 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:37:39,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:37:39,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:39,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:39,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373122691] [2021-03-25 04:37:39,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:39,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:37:39,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148776938] [2021-03-25 04:37:39,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:37:39,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:39,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:37:39,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:37:39,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 205 [2021-03-25 04:37:39,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 85 transitions, 842 flow. Second operand has 7 states, 7 states have (on average 168.85714285714286) internal successors, (1182), 7 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:39,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:39,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 205 [2021-03-25 04:37:39,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:40,037 INFO L129 PetriNetUnfolder]: 788/1439 cut-off events. [2021-03-25 04:37:40,037 INFO L130 PetriNetUnfolder]: For 9715/14301 co-relation queries the response was YES. [2021-03-25 04:37:40,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7367 conditions, 1439 events. 788/1439 cut-off events. For 9715/14301 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9426 event pairs, 0 based on Foata normal form. 316/1475 useless extension candidates. Maximal degree in co-relation 7326. Up to 885 conditions per place. [2021-03-25 04:37:40,055 INFO L132 encePairwiseOnDemand]: 198/205 looper letters, 6 selfloop transitions, 18 changer transitions 5/82 dead transitions. [2021-03-25 04:37:40,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 832 flow [2021-03-25 04:37:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:37:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:37:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1375 transitions. [2021-03-25 04:37:40,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8384146341463414 [2021-03-25 04:37:40,060 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1375 transitions. [2021-03-25 04:37:40,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1375 transitions. [2021-03-25 04:37:40,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:40,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1375 transitions. [2021-03-25 04:37:40,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 171.875) internal successors, (1375), 8 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:40,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 205.0) internal successors, (1845), 9 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:40,065 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 205.0) internal successors, (1845), 9 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:40,065 INFO L185 Difference]: Start difference. First operand has 99 places, 85 transitions, 842 flow. Second operand 8 states and 1375 transitions. [2021-03-25 04:37:40,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 832 flow [2021-03-25 04:37:40,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 82 transitions, 699 flow, removed 43 selfloop flow, removed 12 redundant places. [2021-03-25 04:37:40,130 INFO L241 Difference]: Finished difference. Result has 89 places, 74 transitions, 645 flow [2021-03-25 04:37:40,130 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=645, PETRI_PLACES=89, PETRI_TRANSITIONS=74} [2021-03-25 04:37:40,130 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 30 predicate places. [2021-03-25 04:37:40,130 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:40,130 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 74 transitions, 645 flow [2021-03-25 04:37:40,131 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 74 transitions, 645 flow [2021-03-25 04:37:40,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 74 transitions, 645 flow [2021-03-25 04:37:40,191 INFO L129 PetriNetUnfolder]: 311/731 cut-off events. [2021-03-25 04:37:40,191 INFO L130 PetriNetUnfolder]: For 2771/3163 co-relation queries the response was YES. [2021-03-25 04:37:40,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3330 conditions, 731 events. 311/731 cut-off events. For 2771/3163 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5069 event pairs, 0 based on Foata normal form. 12/651 useless extension candidates. Maximal degree in co-relation 3295. Up to 301 conditions per place. [2021-03-25 04:37:40,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 1112 [2021-03-25 04:37:40,543 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:37:40,677 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:37:41,296 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 196 [2021-03-25 04:37:41,519 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:37:42,928 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 350 DAG size of output: 276 [2021-03-25 04:37:43,442 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:37:43,450 INFO L154 LiptonReduction]: Checked pairs total: 1039 [2021-03-25 04:37:43,450 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:37:43,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3320 [2021-03-25 04:37:43,451 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 629 flow [2021-03-25 04:37:43,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 168.85714285714286) internal successors, (1182), 7 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:43,451 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:43,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:43,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 04:37:43,451 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:43,452 INFO L82 PathProgramCache]: Analyzing trace with hash -632766728, now seen corresponding path program 1 times [2021-03-25 04:37:43,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:43,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627657211] [2021-03-25 04:37:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:37:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:37:43,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:43,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:43,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:37:43,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:37:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:37:43,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627657211] [2021-03-25 04:37:43,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:37:43,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:37:43,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931051299] [2021-03-25 04:37:43,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:37:43,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:37:43,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:37:43,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:37:43,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 207 [2021-03-25 04:37:43,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 71 transitions, 629 flow. Second operand has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:43,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:37:43,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 207 [2021-03-25 04:37:43,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:37:43,646 INFO L129 PetriNetUnfolder]: 608/1275 cut-off events. [2021-03-25 04:37:43,646 INFO L130 PetriNetUnfolder]: For 9095/10133 co-relation queries the response was YES. [2021-03-25 04:37:43,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5649 conditions, 1275 events. 608/1275 cut-off events. For 9095/10133 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 9483 event pairs, 0 based on Foata normal form. 87/1175 useless extension candidates. Maximal degree in co-relation 5612. Up to 482 conditions per place. [2021-03-25 04:37:43,656 INFO L132 encePairwiseOnDemand]: 204/207 looper letters, 3 selfloop transitions, 1 changer transitions 25/72 dead transitions. [2021-03-25 04:37:43,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 72 transitions, 641 flow [2021-03-25 04:37:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:37:43,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:37:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 734 transitions. [2021-03-25 04:37:43,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8864734299516909 [2021-03-25 04:37:43,658 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 734 transitions. [2021-03-25 04:37:43,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 734 transitions. [2021-03-25 04:37:43,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:37:43,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 734 transitions. [2021-03-25 04:37:43,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 183.5) internal successors, (734), 4 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:43,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:43,660 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:43,660 INFO L185 Difference]: Start difference. First operand has 85 places, 71 transitions, 629 flow. Second operand 4 states and 734 transitions. [2021-03-25 04:37:43,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 72 transitions, 641 flow [2021-03-25 04:37:43,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 564 flow, removed 23 selfloop flow, removed 8 redundant places. [2021-03-25 04:37:43,702 INFO L241 Difference]: Finished difference. Result has 82 places, 47 transitions, 302 flow [2021-03-25 04:37:43,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=82, PETRI_TRANSITIONS=47} [2021-03-25 04:37:43,702 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 23 predicate places. [2021-03-25 04:37:43,703 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:37:43,703 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 47 transitions, 302 flow [2021-03-25 04:37:43,703 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 47 transitions, 302 flow [2021-03-25 04:37:43,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 47 transitions, 302 flow [2021-03-25 04:37:43,732 INFO L129 PetriNetUnfolder]: 169/394 cut-off events. [2021-03-25 04:37:43,732 INFO L130 PetriNetUnfolder]: For 865/971 co-relation queries the response was YES. [2021-03-25 04:37:43,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1311 conditions, 394 events. 169/394 cut-off events. For 865/971 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2262 event pairs, 0 based on Foata normal form. 17/363 useless extension candidates. Maximal degree in co-relation 1280. Up to 144 conditions per place. [2021-03-25 04:37:43,736 INFO L142 LiptonReduction]: Number of co-enabled transitions 570 [2021-03-25 04:37:43,967 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:37:44,407 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-25 04:37:44,532 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-25 04:37:44,608 INFO L154 LiptonReduction]: Checked pairs total: 117 [2021-03-25 04:37:44,609 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:37:44,609 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 906 [2021-03-25 04:37:44,609 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 305 flow [2021-03-25 04:37:44,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:37:44,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:37:44,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:37:44,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 04:37:44,610 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:37:44,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:37:44,610 INFO L82 PathProgramCache]: Analyzing trace with hash 231940653, now seen corresponding path program 1 times [2021-03-25 04:37:44,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:37:44,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346350027] [2021-03-25 04:37:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:37:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:37:44,632 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:37:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:37:44,668 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:37:44,709 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:37:44,709 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:37:44,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 04:37:44,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:37:44 BasicIcfg [2021-03-25 04:37:44,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:37:44,840 INFO L168 Benchmark]: Toolchain (without parser) took 32279.15 ms. Allocated memory was 255.9 MB in the beginning and 962.6 MB in the end (delta: 706.7 MB). Free memory was 233.9 MB in the beginning and 400.8 MB in the end (delta: -166.9 MB). Peak memory consumption was 539.8 MB. Max. memory is 16.0 GB. [2021-03-25 04:37:44,840 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:37:44,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.74 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 233.3 MB in the beginning and 313.6 MB in the end (delta: -80.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:37:44,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.01 ms. Allocated memory is still 354.4 MB. Free memory was 313.6 MB in the beginning and 310.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:37:44,843 INFO L168 Benchmark]: Boogie Preprocessor took 46.65 ms. Allocated memory is still 354.4 MB. Free memory was 310.7 MB in the beginning and 308.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:37:44,843 INFO L168 Benchmark]: RCFGBuilder took 1854.57 ms. Allocated memory was 354.4 MB in the beginning and 429.9 MB in the end (delta: 75.5 MB). Free memory was 308.2 MB in the beginning and 392.8 MB in the end (delta: -84.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.0 GB. [2021-03-25 04:37:44,843 INFO L168 Benchmark]: TraceAbstraction took 29693.54 ms. Allocated memory was 429.9 MB in the beginning and 962.6 MB in the end (delta: 532.7 MB). Free memory was 391.8 MB in the beginning and 400.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 522.6 MB. Max. memory is 16.0 GB. [2021-03-25 04:37:44,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 597.74 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 233.3 MB in the beginning and 313.6 MB in the end (delta: -80.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 80.01 ms. Allocated memory is still 354.4 MB. Free memory was 313.6 MB in the beginning and 310.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 46.65 ms. Allocated memory is still 354.4 MB. Free memory was 310.7 MB in the beginning and 308.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1854.57 ms. Allocated memory was 354.4 MB in the beginning and 429.9 MB in the end (delta: 75.5 MB). Free memory was 308.2 MB in the beginning and 392.8 MB in the end (delta: -84.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 29693.54 ms. Allocated memory was 429.9 MB in the beginning and 962.6 MB in the end (delta: 532.7 MB). Free memory was 391.8 MB in the beginning and 400.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 522.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7708.6ms, 123 PlacesBefore, 59 PlacesAfterwards, 112 TransitionsBefore, 47 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 5205 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2419, positive: 2295, positive conditional: 0, positive unconditional: 2295, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1295, positive: 1261, positive conditional: 0, positive unconditional: 1261, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1295, positive: 1261, positive conditional: 0, positive unconditional: 1261, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2419, positive: 1034, positive conditional: 0, positive unconditional: 1034, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 1295, unknown conditional: 0, unknown unconditional: 1295] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4543.3ms, 55 PlacesBefore, 39 PlacesAfterwards, 40 TransitionsBefore, 28 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 2544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 675, positive: 536, positive conditional: 0, positive unconditional: 536, negative: 139, negative conditional: 0, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 675, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0ms, 40 PlacesBefore, 40 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 453 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, positive: 150, positive conditional: 0, positive unconditional: 150, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.4ms, 42 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 820 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 245, positive: 202, positive conditional: 0, positive unconditional: 202, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 245, positive: 202, positive conditional: 0, positive unconditional: 202, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.9ms, 42 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 295 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 97, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 97, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.1ms, 48 PlacesBefore, 48 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 682 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 423 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 121, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 874.8ms, 54 PlacesBefore, 54 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1390 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 332, positive: 283, positive conditional: 0, positive unconditional: 283, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 332, positive: 273, positive conditional: 0, positive unconditional: 273, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 752.7ms, 57 PlacesBefore, 57 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 826 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1404 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 398, positive: 352, positive conditional: 0, positive unconditional: 352, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 398, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 143, Positive conditional cache size: 0, Positive unconditional cache size: 143, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.7ms, 60 PlacesBefore, 60 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 844 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 864 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 222, positive: 193, positive conditional: 0, positive unconditional: 193, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 222, positive: 193, positive conditional: 0, positive unconditional: 193, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 143, Positive conditional cache size: 0, Positive unconditional cache size: 143, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.2ms, 65 PlacesBefore, 65 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 951 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 211, positive: 181, positive conditional: 0, positive unconditional: 181, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 211, positive: 181, positive conditional: 0, positive unconditional: 181, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 143, Positive conditional cache size: 0, Positive unconditional cache size: 143, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 88.7ms, 68 PlacesBefore, 68 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 964 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1287 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 236, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 236, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 143, Positive conditional cache size: 0, Positive unconditional cache size: 143, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 98.1ms, 75 PlacesBefore, 75 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 1098 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1894 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 640, positive: 587, positive conditional: 0, positive unconditional: 587, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 640, positive: 584, positive conditional: 0, positive unconditional: 584, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.2ms, 78 PlacesBefore, 78 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 1098 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1918 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 634, positive: 580, positive conditional: 0, positive unconditional: 580, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 634, positive: 580, positive conditional: 0, positive unconditional: 580, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 118.2ms, 81 PlacesBefore, 81 PlacesAfterwards, 82 TransitionsBefore, 82 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 692, positive: 636, positive conditional: 0, positive unconditional: 636, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 692, positive: 636, positive conditional: 0, positive unconditional: 636, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 103.6ms, 83 PlacesBefore, 83 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 1158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2414 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 705, positive: 641, positive conditional: 0, positive unconditional: 641, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 705, positive: 638, positive conditional: 0, positive unconditional: 638, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 148.5ms, 85 PlacesBefore, 85 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1492 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 181, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 181, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 334.8ms, 91 PlacesBefore, 91 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 1526 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 440 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 82, positive: 73, positive conditional: 0, positive unconditional: 73, 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): 168, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 296.5ms, 96 PlacesBefore, 96 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 1580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 462 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 71, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 258.2ms, 101 PlacesBefore, 101 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 1774 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 528 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 95, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 169, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 355.1ms, 99 PlacesBefore, 99 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 1750 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 99, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 169, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 653.4ms, 99 PlacesBefore, 99 PlacesAfterwards, 88 TransitionsBefore, 85 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1042 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 308, positive: 290, positive conditional: 0, positive unconditional: 290, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 308, positive: 288, positive conditional: 0, positive unconditional: 288, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3319.6ms, 89 PlacesBefore, 85 PlacesAfterwards, 74 TransitionsBefore, 71 TransitionsAfterwards, 1112 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1039 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 286, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 286, positive: 248, positive conditional: 0, positive unconditional: 248, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 905.8ms, 82 PlacesBefore, 69 PlacesAfterwards, 47 TransitionsBefore, 45 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 117 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 110, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 110, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L846] 0 pthread_t t577; [L847] FCALL, FORK 0 pthread_create(&t577, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L848] 0 pthread_t t578; [L849] FCALL, FORK 0 pthread_create(&t578, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L850] 0 pthread_t t579; [L851] FCALL, FORK 0 pthread_create(&t579, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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=0] [L798] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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=0] [L852] 0 pthread_t t580; [L853] FCALL, FORK 0 pthread_create(&t580, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=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=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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=0] [L815] 4 z = 1 [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L771] 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) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L801] EXPR 3 y$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$r_buff1_thd3 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L859] 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) [L859] 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) [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L861] 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 [L862] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L863] 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 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] EXPR 0 weak$$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$w_buff0)) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] EXPR 0 weak$$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$w_buff1)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] EXPR 0 weak$$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)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$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)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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 5 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 29448.1ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5273.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7780.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 SDtfs, 46 SDslu, 32 SDs, 0 SdLazy, 833 SolverSat, 221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 998.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1200.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1115occurred in iteration=17, InterpolantAutomatonStates: 108, 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: 80.3ms SsaConstructionTime, 692.1ms SatisfiabilityAnalysisTime, 2074.6ms InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 3350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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...