/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:36:38,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:36:38,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:36:38,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:36:38,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:36:38,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:36:38,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:36:38,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:36:38,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:36:38,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:36:38,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:36:38,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:36:38,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:36:38,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:36:38,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:36:38,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:36:38,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:36:38,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:36:38,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:36:38,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:36:38,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:36:38,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:36:38,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:36:38,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:36:38,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:36:38,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:36:38,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:36:38,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:36:38,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:36:38,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:36:38,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:36:38,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:36:38,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:36:38,617 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:36:38,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:36:38,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:36:38,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:36:38,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:36:38,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:36:38,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:36:38,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:36:38,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:36:38,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:36:38,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:36:38,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:36:38,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:36:38,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:36:38,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:36:38,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:36:38,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:36:38,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:36:38,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:36:38,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:36:38,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:36:38,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:36:38,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:36:38,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:36:38,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:36:38,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:36:38,625 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:36:39,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:36:39,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:36:39,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:36:39,073 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:36:39,074 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:36:39,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_tso.oepc.i [2021-04-28 22:36:39,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00205da61/a4335da62acc47ae96f8e34deb9f4493/FLAG230442702 [2021-04-28 22:36:39,813 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:36:39,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_tso.oepc.i [2021-04-28 22:36:39,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00205da61/a4335da62acc47ae96f8e34deb9f4493/FLAG230442702 [2021-04-28 22:36:40,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00205da61/a4335da62acc47ae96f8e34deb9f4493 [2021-04-28 22:36:40,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:36:40,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:36:40,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:36:40,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:36:40,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:36:40,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:36:40" (1/1) ... [2021-04-28 22:36:40,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f68ce93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:40, skipping insertion in model container [2021-04-28 22:36:40,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:36:40" (1/1) ... [2021-04-28 22:36:40,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:36:40,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:36:40,523 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/mix056_tso.oepc.i[949,962] [2021-04-28 22:36:40,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:36:40,810 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:36:40,825 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/mix056_tso.oepc.i[949,962] [2021-04-28 22:36:40,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:36:41,054 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:36:41,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41 WrapperNode [2021-04-28 22:36:41,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:36:41,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:36:41,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:36:41,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:36:41,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:36:41,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:36:41,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:36:41,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:36:41,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... [2021-04-28 22:36:41,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:36:41,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:36:41,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:36:41,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:36:41,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:36:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:36:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:36:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:36:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:36:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:36:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:36:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:36:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:36:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:36:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:36:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:36:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:36:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:36:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:36:41,272 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:36:43,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:36:43,217 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:36:43,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:36:43 BoogieIcfgContainer [2021-04-28 22:36:43,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:36:43,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:36:43,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:36:43,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:36:43,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:36:40" (1/3) ... [2021-04-28 22:36:43,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:36:43, skipping insertion in model container [2021-04-28 22:36:43,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:36:41" (2/3) ... [2021-04-28 22:36:43,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:36:43, skipping insertion in model container [2021-04-28 22:36:43,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:36:43" (3/3) ... [2021-04-28 22:36:43,232 INFO L111 eAbstractionObserver]: Analyzing ICFG mix056_tso.oepc.i [2021-04-28 22:36:43,240 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:36:43,249 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:36:43,250 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:36:43,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,297 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,297 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,299 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,299 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,299 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,305 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,305 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,307 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,307 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,314 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,315 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,317 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,318 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,324 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:36:43,327 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:36:43,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 22:36:43,374 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:36:43,374 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:36:43,375 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:36:43,375 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:36:43,375 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:36:43,375 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:36:43,375 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:36:43,375 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:36:43,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2021-04-28 22:36:43,436 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-04-28 22:36:43,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:36:43,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-04-28 22:36:43,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 207 flow [2021-04-28 22:36:43,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 93 transitions, 195 flow [2021-04-28 22:36:43,448 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:36:43,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 93 transitions, 195 flow [2021-04-28 22:36:43,467 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 93 transitions, 195 flow [2021-04-28 22:36:43,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 195 flow [2021-04-28 22:36:43,493 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-04-28 22:36:43,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:36:43,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-04-28 22:36:43,498 INFO L146 LiptonReduction]: Number of co-enabled transitions 1578 [2021-04-28 22:36:47,082 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-04-28 22:36:47,556 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:36:49,845 WARN L205 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-04-28 22:36:50,894 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:36:51,505 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:36:51,625 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:36:52,198 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2021-04-28 22:36:52,455 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 22:36:54,745 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:36:55,278 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:36:57,900 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:36:59,066 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:37:00,393 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 22:37:00,963 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:37:03,725 WARN L205 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:37:04,947 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:37:06,319 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-04-28 22:37:06,946 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:37:09,709 WARN L205 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-04-28 22:37:10,957 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:37:14,031 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-04-28 22:37:14,704 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:37:17,695 WARN L205 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-04-28 22:37:19,071 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 262 [2021-04-28 22:37:20,645 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2021-04-28 22:37:21,383 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:37:24,569 WARN L205 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 313 DAG size of output: 268 [2021-04-28 22:37:25,998 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:37:27,611 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 229 DAG size of output: 189 [2021-04-28 22:37:28,997 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2021-04-28 22:37:32,255 WARN L205 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 313 DAG size of output: 268 [2021-04-28 22:37:33,685 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:37:35,277 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:37:36,013 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:37:39,423 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:37:40,985 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:37:45,465 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-04-28 22:37:46,231 WARN L205 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:37:49,967 WARN L205 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-04-28 22:37:51,635 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:37:53,529 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:37:54,406 WARN L205 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:37:58,169 WARN L205 SmtUtils]: Spent 3.76 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-04-28 22:37:59,874 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:38:02,179 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 229 DAG size of output: 189 [2021-04-28 22:38:03,294 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:38:07,793 WARN L205 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 313 DAG size of output: 269 [2021-04-28 22:38:09,838 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 22:38:11,236 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:38:11,341 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:38:14,514 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:14,632 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:14,745 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:14,859 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:14,969 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:15,084 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:15,189 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:15,456 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:38:15,632 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:38:15,784 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:38:15,940 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:38:16,084 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:38:16,232 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:38:16,377 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:38:16,512 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:38:16,636 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:38:16,763 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:38:16,887 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:38:17,006 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:38:17,142 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:17,266 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:17,391 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:17,516 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:17,661 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:38:17,810 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:38:17,967 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:38:18,114 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:38:18,244 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:18,377 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:18,504 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:18,632 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:38:18,774 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:38:18,908 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:38:19,053 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:38:19,197 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:38:20,606 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:38:20,723 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:38:20,833 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:38:20,937 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:38:21,054 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 22:38:21,172 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 22:38:21,292 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 22:38:21,410 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 22:38:21,970 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 22:38:22,074 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 22:38:22,677 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-04-28 22:38:23,592 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:23,779 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:23,959 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:24,159 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:24,345 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:38:24,526 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:38:24,712 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:38:24,898 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:38:25,139 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:38:25,373 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:38:25,655 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:38:25,903 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:38:26,119 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:38:26,319 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:38:26,538 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:38:26,746 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:38:26,932 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:38:27,112 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:38:27,286 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:38:27,452 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:38:27,693 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:27,912 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:28,117 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:28,323 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:28,551 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:38:28,790 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:38:29,027 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:38:29,248 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:38:29,414 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:29,583 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:29,754 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:29,923 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:30,103 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:30,303 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:30,499 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:30,695 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:30,902 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:38:31,115 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:38:31,320 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:38:31,521 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:38:31,855 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:31,958 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:32,068 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:32,179 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:38:32,290 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:32,402 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:32,513 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:32,622 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:32,733 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:32,842 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:32,951 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:33,060 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:33,168 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:33,277 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:33,389 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:33,500 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:33,678 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:38:33,864 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:38:34,043 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:38:34,214 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:38:34,393 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 22:38:34,584 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 22:38:34,771 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 22:38:34,951 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 22:38:35,060 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:35,172 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:35,285 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:35,399 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:38:35,599 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:35,787 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:35,978 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:36,172 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:36,463 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:38:36,753 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:38:37,037 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:38:37,322 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:38:37,602 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:38:37,887 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:38:38,187 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:38:38,481 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:38:38,696 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:38,899 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:39,140 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:39,375 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:38:39,543 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:39,715 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:39,882 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:40,039 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:40,279 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:38:40,520 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:38:40,768 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:38:41,009 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:38:41,287 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:38:41,551 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:38:41,793 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:38:42,028 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:38:42,203 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:42,375 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:42,553 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:42,729 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:38:43,044 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:43,344 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:43,630 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:43,913 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:44,226 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:38:44,522 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:38:44,824 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:38:45,113 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:38:45,407 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:45,699 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:46,005 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:46,297 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:46,604 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:46,913 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:47,210 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:47,495 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:48,303 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-28 22:38:48,681 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-28 22:38:49,488 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-28 22:38:49,875 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-28 22:38:50,066 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:50,254 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:50,452 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:50,648 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:38:51,513 WARN L205 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-04-28 22:38:51,930 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 22:38:52,804 WARN L205 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-04-28 22:38:53,231 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 22:38:53,530 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:53,830 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:54,153 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:54,472 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:38:54,520 INFO L158 LiptonReduction]: Checked pairs total: 15074 [2021-04-28 22:38:54,520 INFO L160 LiptonReduction]: Total number of compositions: 222 [2021-04-28 22:38:54,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131079 [2021-04-28 22:38:54,551 INFO L129 PetriNetUnfolder]: 2/84 cut-off events. [2021-04-28 22:38:54,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:38:54,551 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:54,552 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:54,552 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:54,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:54,558 INFO L82 PathProgramCache]: Analyzing trace with hash 513278794, now seen corresponding path program 1 times [2021-04-28 22:38:54,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:54,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961098450] [2021-04-28 22:38:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:54,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:54,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:38:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:54,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961098450] [2021-04-28 22:38:54,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:54,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:38:54,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541349485] [2021-04-28 22:38:54,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:38:54,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:38:54,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:38:54,899 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 318 [2021-04-28 22:38:54,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:54,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:54,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 318 [2021-04-28 22:38:54,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:55,447 INFO L129 PetriNetUnfolder]: 114/453 cut-off events. [2021-04-28 22:38:55,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:38:55,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 453 events. 114/453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 3374 event pairs, 16 based on Foata normal form. 6/222 useless extension candidates. Maximal degree in co-relation 622. Up to 167 conditions per place. [2021-04-28 22:38:55,453 INFO L132 encePairwiseOnDemand]: 301/318 looper letters, 7 selfloop transitions, 2 changer transitions 89/130 dead transitions. [2021-04-28 22:38:55,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 130 transitions, 363 flow [2021-04-28 22:38:55,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:38:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:38:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 740 transitions. [2021-04-28 22:38:55,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7756813417190775 [2021-04-28 22:38:55,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 740 transitions. [2021-04-28 22:38:55,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 740 transitions. [2021-04-28 22:38:55,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:55,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 740 transitions. [2021-04-28 22:38:55,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:55,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:55,502 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:55,505 INFO L185 Difference]: Start difference. First operand has 126 places, 118 transitions, 245 flow. Second operand 3 states and 740 transitions. [2021-04-28 22:38:55,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 130 transitions, 363 flow [2021-04-28 22:38:55,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 130 transitions, 360 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 22:38:55,512 INFO L241 Difference]: Finished difference. Result has 122 places, 38 transitions, 86 flow [2021-04-28 22:38:55,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=122, PETRI_TRANSITIONS=38} [2021-04-28 22:38:55,516 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -4 predicate places. [2021-04-28 22:38:55,516 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:55,516 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 38 transitions, 86 flow [2021-04-28 22:38:55,517 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 38 transitions, 86 flow [2021-04-28 22:38:55,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 86 flow [2021-04-28 22:38:55,523 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-04-28 22:38:55,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:38:55,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 126 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:38:55,525 INFO L146 LiptonReduction]: Number of co-enabled transitions 822 [2021-04-28 22:38:55,804 INFO L158 LiptonReduction]: Checked pairs total: 790 [2021-04-28 22:38:55,804 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:38:55,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 289 [2021-04-28 22:38:55,806 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 86 flow [2021-04-28 22:38:55,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:55,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:55,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:55,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:38:55,808 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:55,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:55,809 INFO L82 PathProgramCache]: Analyzing trace with hash -660271546, now seen corresponding path program 1 times [2021-04-28 22:38:55,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:55,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928776650] [2021-04-28 22:38:55,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:55,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:55,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:38:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:56,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928776650] [2021-04-28 22:38:56,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:56,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:38:56,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889083707] [2021-04-28 22:38:56,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:38:56,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:56,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:38:56,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:38:56,005 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 318 [2021-04-28 22:38:56,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:56,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 318 [2021-04-28 22:38:56,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:56,029 INFO L129 PetriNetUnfolder]: 3/54 cut-off events. [2021-04-28 22:38:56,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:38:56,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 54 events. 3/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 181 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 66. Up to 10 conditions per place. [2021-04-28 22:38:56,030 INFO L132 encePairwiseOnDemand]: 314/318 looper letters, 3 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2021-04-28 22:38:56,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 102 flow [2021-04-28 22:38:56,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:38:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:38:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2021-04-28 22:38:56,036 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7023060796645703 [2021-04-28 22:38:56,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2021-04-28 22:38:56,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2021-04-28 22:38:56,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:56,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2021-04-28 22:38:56,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,043 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,043 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 86 flow. Second operand 3 states and 670 transitions. [2021-04-28 22:38:56,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 102 flow [2021-04-28 22:38:56,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:38:56,045 INFO L241 Difference]: Finished difference. Result has 48 places, 40 transitions, 101 flow [2021-04-28 22:38:56,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2021-04-28 22:38:56,046 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -78 predicate places. [2021-04-28 22:38:56,046 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:56,046 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 40 transitions, 101 flow [2021-04-28 22:38:56,046 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 40 transitions, 101 flow [2021-04-28 22:38:56,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 40 transitions, 101 flow [2021-04-28 22:38:56,054 INFO L129 PetriNetUnfolder]: 3/50 cut-off events. [2021-04-28 22:38:56,054 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:38:56,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 50 events. 3/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 187 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 63. Up to 10 conditions per place. [2021-04-28 22:38:56,055 INFO L146 LiptonReduction]: Number of co-enabled transitions 896 [2021-04-28 22:38:56,321 INFO L158 LiptonReduction]: Checked pairs total: 612 [2021-04-28 22:38:56,321 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:38:56,321 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 275 [2021-04-28 22:38:56,323 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 101 flow [2021-04-28 22:38:56,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:56,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:56,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:38:56,324 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:56,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1006416747, now seen corresponding path program 1 times [2021-04-28 22:38:56,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:56,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665143754] [2021-04-28 22:38:56,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:56,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:56,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:38:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:56,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:38:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:56,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665143754] [2021-04-28 22:38:56,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:56,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:38:56,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207700865] [2021-04-28 22:38:56,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:38:56,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:56,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:38:56,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:38:56,547 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 318 [2021-04-28 22:38:56,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:56,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 318 [2021-04-28 22:38:56,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:56,650 INFO L129 PetriNetUnfolder]: 61/182 cut-off events. [2021-04-28 22:38:56,650 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-04-28 22:38:56,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 182 events. 61/182 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 912 event pairs, 37 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 315. Up to 97 conditions per place. [2021-04-28 22:38:56,653 INFO L132 encePairwiseOnDemand]: 314/318 looper letters, 7 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2021-04-28 22:38:56,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 127 flow [2021-04-28 22:38:56,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:38:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:38:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2021-04-28 22:38:56,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5744234800838575 [2021-04-28 22:38:56,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2021-04-28 22:38:56,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2021-04-28 22:38:56,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:56,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2021-04-28 22:38:56,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,665 INFO L185 Difference]: Start difference. First operand has 48 places, 40 transitions, 101 flow. Second operand 3 states and 548 transitions. [2021-04-28 22:38:56,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 127 flow [2021-04-28 22:38:56,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 43 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:38:56,668 INFO L241 Difference]: Finished difference. Result has 50 places, 42 transitions, 117 flow [2021-04-28 22:38:56,668 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2021-04-28 22:38:56,668 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -76 predicate places. [2021-04-28 22:38:56,671 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:56,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 42 transitions, 117 flow [2021-04-28 22:38:56,672 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 42 transitions, 117 flow [2021-04-28 22:38:56,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 117 flow [2021-04-28 22:38:56,683 INFO L129 PetriNetUnfolder]: 7/70 cut-off events. [2021-04-28 22:38:56,684 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2021-04-28 22:38:56,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 70 events. 7/70 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 309 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 101. Up to 15 conditions per place. [2021-04-28 22:38:56,686 INFO L146 LiptonReduction]: Number of co-enabled transitions 958 [2021-04-28 22:38:56,771 INFO L158 LiptonReduction]: Checked pairs total: 514 [2021-04-28 22:38:56,771 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:38:56,772 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-04-28 22:38:56,773 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 117 flow [2021-04-28 22:38:56,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:56,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:56,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:56,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:38:56,774 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:56,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:56,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1978457567, now seen corresponding path program 1 times [2021-04-28 22:38:56,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:56,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036593570] [2021-04-28 22:38:56,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:56,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:56,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:38:56,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:56,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:38:56,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:56,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:38:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:57,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036593570] [2021-04-28 22:38:57,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:57,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:38:57,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449729479] [2021-04-28 22:38:57,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:38:57,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:57,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:38:57,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:38:57,028 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 318 [2021-04-28 22:38:57,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:57,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 318 [2021-04-28 22:38:57,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:57,218 INFO L129 PetriNetUnfolder]: 44/176 cut-off events. [2021-04-28 22:38:57,218 INFO L130 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2021-04-28 22:38:57,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 176 events. 44/176 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 977 event pairs, 3 based on Foata normal form. 11/131 useless extension candidates. Maximal degree in co-relation 315. Up to 49 conditions per place. [2021-04-28 22:38:57,221 INFO L132 encePairwiseOnDemand]: 312/318 looper letters, 9 selfloop transitions, 8 changer transitions 0/50 dead transitions. [2021-04-28 22:38:57,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 171 flow [2021-04-28 22:38:57,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:38:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:38:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 854 transitions. [2021-04-28 22:38:57,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5371069182389937 [2021-04-28 22:38:57,229 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 854 transitions. [2021-04-28 22:38:57,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 854 transitions. [2021-04-28 22:38:57,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:57,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 854 transitions. [2021-04-28 22:38:57,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.8) internal successors, (854), 5 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,239 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,240 INFO L185 Difference]: Start difference. First operand has 50 places, 42 transitions, 117 flow. Second operand 5 states and 854 transitions. [2021-04-28 22:38:57,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 171 flow [2021-04-28 22:38:57,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:38:57,243 INFO L241 Difference]: Finished difference. Result has 56 places, 46 transitions, 163 flow [2021-04-28 22:38:57,243 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2021-04-28 22:38:57,243 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -70 predicate places. [2021-04-28 22:38:57,243 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:57,243 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 46 transitions, 163 flow [2021-04-28 22:38:57,244 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 46 transitions, 163 flow [2021-04-28 22:38:57,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 46 transitions, 163 flow [2021-04-28 22:38:57,260 INFO L129 PetriNetUnfolder]: 11/81 cut-off events. [2021-04-28 22:38:57,260 INFO L130 PetriNetUnfolder]: For 79/85 co-relation queries the response was YES. [2021-04-28 22:38:57,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 81 events. 11/81 cut-off events. For 79/85 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 355 event pairs, 5 based on Foata normal form. 2/49 useless extension candidates. Maximal degree in co-relation 162. Up to 18 conditions per place. [2021-04-28 22:38:57,263 INFO L146 LiptonReduction]: Number of co-enabled transitions 1092 [2021-04-28 22:38:57,266 INFO L158 LiptonReduction]: Checked pairs total: 210 [2021-04-28 22:38:57,266 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:38:57,267 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-28 22:38:57,268 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 163 flow [2021-04-28 22:38:57,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:57,270 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:57,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:38:57,270 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:57,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1008637175, now seen corresponding path program 1 times [2021-04-28 22:38:57,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:57,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192565263] [2021-04-28 22:38:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:57,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:38:57,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:57,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:38:57,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:57,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:38:57,436 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-04-28 22:38:57,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 22:38:57,500 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 22:38:57,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 22:38:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:57,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192565263] [2021-04-28 22:38:57,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:57,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:38:57,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719638768] [2021-04-28 22:38:57,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:38:57,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:57,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:38:57,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:38:57,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 318 [2021-04-28 22:38:57,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:57,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 318 [2021-04-28 22:38:57,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:57,768 INFO L129 PetriNetUnfolder]: 54/210 cut-off events. [2021-04-28 22:38:57,768 INFO L130 PetriNetUnfolder]: For 197/201 co-relation queries the response was YES. [2021-04-28 22:38:57,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 210 events. 54/210 cut-off events. For 197/201 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1245 event pairs, 5 based on Foata normal form. 6/152 useless extension candidates. Maximal degree in co-relation 496. Up to 74 conditions per place. [2021-04-28 22:38:57,772 INFO L132 encePairwiseOnDemand]: 311/318 looper letters, 11 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2021-04-28 22:38:57,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 54 transitions, 239 flow [2021-04-28 22:38:57,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:38:57,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:38:57,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 902 transitions. [2021-04-28 22:38:57,778 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5672955974842767 [2021-04-28 22:38:57,778 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 902 transitions. [2021-04-28 22:38:57,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 902 transitions. [2021-04-28 22:38:57,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:57,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 902 transitions. [2021-04-28 22:38:57,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,788 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,788 INFO L185 Difference]: Start difference. First operand has 56 places, 46 transitions, 163 flow. Second operand 5 states and 902 transitions. [2021-04-28 22:38:57,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 54 transitions, 239 flow [2021-04-28 22:38:57,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 235 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-04-28 22:38:57,793 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 221 flow [2021-04-28 22:38:57,793 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-04-28 22:38:57,793 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -64 predicate places. [2021-04-28 22:38:57,793 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:57,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 51 transitions, 221 flow [2021-04-28 22:38:57,794 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 51 transitions, 221 flow [2021-04-28 22:38:57,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 51 transitions, 221 flow [2021-04-28 22:38:57,818 INFO L129 PetriNetUnfolder]: 25/136 cut-off events. [2021-04-28 22:38:57,818 INFO L130 PetriNetUnfolder]: For 177/181 co-relation queries the response was YES. [2021-04-28 22:38:57,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 136 events. 25/136 cut-off events. For 177/181 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 744 event pairs, 7 based on Foata normal form. 3/85 useless extension candidates. Maximal degree in co-relation 329. Up to 31 conditions per place. [2021-04-28 22:38:57,822 INFO L146 LiptonReduction]: Number of co-enabled transitions 1200 [2021-04-28 22:38:57,826 INFO L158 LiptonReduction]: Checked pairs total: 250 [2021-04-28 22:38:57,826 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:38:57,826 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-28 22:38:57,827 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 221 flow [2021-04-28 22:38:57,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:57,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:57,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:57,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:38:57,829 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:57,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:57,829 INFO L82 PathProgramCache]: Analyzing trace with hash -377289335, now seen corresponding path program 2 times [2021-04-28 22:38:57,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:57,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143602450] [2021-04-28 22:38:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:57,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:57,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:38:57,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:57,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 22:38:58,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:58,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 22:38:58,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:58,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 22:38:58,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:58,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 22:38:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:58,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143602450] [2021-04-28 22:38:58,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:58,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:38:58,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792888914] [2021-04-28 22:38:58,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:38:58,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:58,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:38:58,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:38:58,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 318 [2021-04-28 22:38:58,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 174.85714285714286) internal successors, (1224), 7 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:58,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:58,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 318 [2021-04-28 22:38:58,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:58,567 INFO L129 PetriNetUnfolder]: 51/205 cut-off events. [2021-04-28 22:38:58,567 INFO L130 PetriNetUnfolder]: For 278/290 co-relation queries the response was YES. [2021-04-28 22:38:58,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 205 events. 51/205 cut-off events. For 278/290 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1206 event pairs, 3 based on Foata normal form. 10/151 useless extension candidates. Maximal degree in co-relation 558. Up to 47 conditions per place. [2021-04-28 22:38:58,571 INFO L132 encePairwiseOnDemand]: 311/318 looper letters, 9 selfloop transitions, 12 changer transitions 0/54 dead transitions. [2021-04-28 22:38:58,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 275 flow [2021-04-28 22:38:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:38:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:38:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 887 transitions. [2021-04-28 22:38:58,577 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5578616352201258 [2021-04-28 22:38:58,578 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 887 transitions. [2021-04-28 22:38:58,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 887 transitions. [2021-04-28 22:38:58,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:58,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 887 transitions. [2021-04-28 22:38:58,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:58,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:58,586 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:58,586 INFO L185 Difference]: Start difference. First operand has 62 places, 51 transitions, 221 flow. Second operand 5 states and 887 transitions. [2021-04-28 22:38:58,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 275 flow [2021-04-28 22:38:58,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:38:58,591 INFO L241 Difference]: Finished difference. Result has 66 places, 51 transitions, 249 flow [2021-04-28 22:38:58,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2021-04-28 22:38:58,591 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -60 predicate places. [2021-04-28 22:38:58,592 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:58,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 51 transitions, 249 flow [2021-04-28 22:38:58,592 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 51 transitions, 249 flow [2021-04-28 22:38:58,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 51 transitions, 249 flow [2021-04-28 22:38:58,614 INFO L129 PetriNetUnfolder]: 19/125 cut-off events. [2021-04-28 22:38:58,614 INFO L130 PetriNetUnfolder]: For 184/188 co-relation queries the response was YES. [2021-04-28 22:38:58,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 125 events. 19/125 cut-off events. For 184/188 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 671 event pairs, 5 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 311. Up to 24 conditions per place. [2021-04-28 22:38:58,618 INFO L146 LiptonReduction]: Number of co-enabled transitions 1198 [2021-04-28 22:38:58,622 INFO L158 LiptonReduction]: Checked pairs total: 246 [2021-04-28 22:38:58,622 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:38:58,622 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-04-28 22:38:58,624 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 249 flow [2021-04-28 22:38:58,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 174.85714285714286) internal successors, (1224), 7 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:58,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:38:58,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:38:58,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:38:58,625 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:38:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:38:58,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1006590679, now seen corresponding path program 1 times [2021-04-28 22:38:58,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:38:58,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224959227] [2021-04-28 22:38:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:38:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:38:58,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:58,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:38:58,703 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:38:58,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:38:58,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:38:58,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:38:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:38:58,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224959227] [2021-04-28 22:38:58,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:38:58,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:38:58,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911627750] [2021-04-28 22:38:58,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:38:58,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:38:58,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:38:58,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:38:58,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 318 [2021-04-28 22:38:58,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 235.75) internal successors, (943), 4 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:58,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:38:58,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 318 [2021-04-28 22:38:58,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:38:59,692 INFO L129 PetriNetUnfolder]: 3306/5807 cut-off events. [2021-04-28 22:38:59,692 INFO L130 PetriNetUnfolder]: For 2108/2409 co-relation queries the response was YES. [2021-04-28 22:38:59,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12507 conditions, 5807 events. 3306/5807 cut-off events. For 2108/2409 co-relation queries the response was YES. Maximal size of possible extension queue 1614. Compared 52392 event pairs, 1344 based on Foata normal form. 159/1527 useless extension candidates. Maximal degree in co-relation 12485. Up to 3583 conditions per place. [2021-04-28 22:38:59,759 INFO L132 encePairwiseOnDemand]: 301/318 looper letters, 29 selfloop transitions, 27 changer transitions 0/86 dead transitions. [2021-04-28 22:38:59,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 86 transitions, 431 flow [2021-04-28 22:38:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:38:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:38:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1229 transitions. [2021-04-28 22:38:59,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7729559748427673 [2021-04-28 22:38:59,767 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1229 transitions. [2021-04-28 22:38:59,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1229 transitions. [2021-04-28 22:38:59,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:38:59,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1229 transitions. [2021-04-28 22:38:59,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 245.8) internal successors, (1229), 5 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:59,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:59,778 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:38:59,778 INFO L185 Difference]: Start difference. First operand has 66 places, 51 transitions, 249 flow. Second operand 5 states and 1229 transitions. [2021-04-28 22:38:59,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 86 transitions, 431 flow [2021-04-28 22:38:59,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 86 transitions, 403 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-28 22:38:59,788 INFO L241 Difference]: Finished difference. Result has 69 places, 76 transitions, 426 flow [2021-04-28 22:38:59,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2021-04-28 22:38:59,789 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -57 predicate places. [2021-04-28 22:38:59,789 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:38:59,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 76 transitions, 426 flow [2021-04-28 22:38:59,790 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 76 transitions, 426 flow [2021-04-28 22:38:59,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 76 transitions, 426 flow [2021-04-28 22:39:00,476 INFO L129 PetriNetUnfolder]: 3022/5194 cut-off events. [2021-04-28 22:39:00,476 INFO L130 PetriNetUnfolder]: For 2851/5231 co-relation queries the response was YES. [2021-04-28 22:39:00,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15232 conditions, 5194 events. 3022/5194 cut-off events. For 2851/5231 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 46447 event pairs, 1319 based on Foata normal form. 11/1502 useless extension candidates. Maximal degree in co-relation 15209. Up to 4607 conditions per place. [2021-04-28 22:39:00,570 INFO L146 LiptonReduction]: Number of co-enabled transitions 1678 [2021-04-28 22:39:00,584 INFO L158 LiptonReduction]: Checked pairs total: 294 [2021-04-28 22:39:00,584 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:39:00,585 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 796 [2021-04-28 22:39:00,586 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 426 flow [2021-04-28 22:39:00,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 235.75) internal successors, (943), 4 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:00,587 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:39:00,587 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:39:00,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:39:00,587 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:39:00,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:39:00,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1118035889, now seen corresponding path program 1 times [2021-04-28 22:39:00,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:39:00,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651989891] [2021-04-28 22:39:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:39:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:39:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:00,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:00,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:00,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:00,762 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:39:00,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:39:00,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:00,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:39:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:39:00,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651989891] [2021-04-28 22:39:00,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:39:00,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:39:00,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812171385] [2021-04-28 22:39:00,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:39:00,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:39:00,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:39:00,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:39:00,795 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 318 [2021-04-28 22:39:00,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 426 flow. Second operand has 5 states, 5 states have (on average 235.8) internal successors, (1179), 5 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:00,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:39:00,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 318 [2021-04-28 22:39:00,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:39:02,263 INFO L129 PetriNetUnfolder]: 2853/5807 cut-off events. [2021-04-28 22:39:02,264 INFO L130 PetriNetUnfolder]: For 4953/145415 co-relation queries the response was YES. [2021-04-28 22:39:02,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22121 conditions, 5807 events. 2853/5807 cut-off events. For 4953/145415 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 58546 event pairs, 225 based on Foata normal form. 223/1796 useless extension candidates. Maximal degree in co-relation 22096. Up to 5012 conditions per place. [2021-04-28 22:39:02,326 INFO L132 encePairwiseOnDemand]: 301/318 looper letters, 20 selfloop transitions, 52 changer transitions 9/109 dead transitions. [2021-04-28 22:39:02,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 758 flow [2021-04-28 22:39:02,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:39:02,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:39:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1723 transitions. [2021-04-28 22:39:02,335 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7740341419586703 [2021-04-28 22:39:02,335 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1723 transitions. [2021-04-28 22:39:02,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1723 transitions. [2021-04-28 22:39:02,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:39:02,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1723 transitions. [2021-04-28 22:39:02,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.14285714285714) internal successors, (1723), 7 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:02,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 318.0) internal successors, (2544), 8 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:02,348 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 318.0) internal successors, (2544), 8 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:02,348 INFO L185 Difference]: Start difference. First operand has 69 places, 76 transitions, 426 flow. Second operand 7 states and 1723 transitions. [2021-04-28 22:39:02,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 758 flow [2021-04-28 22:39:02,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 109 transitions, 745 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-04-28 22:39:02,384 INFO L241 Difference]: Finished difference. Result has 75 places, 98 transitions, 725 flow [2021-04-28 22:39:02,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=725, PETRI_PLACES=75, PETRI_TRANSITIONS=98} [2021-04-28 22:39:02,385 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -51 predicate places. [2021-04-28 22:39:02,385 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:39:02,385 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 98 transitions, 725 flow [2021-04-28 22:39:02,386 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 98 transitions, 725 flow [2021-04-28 22:39:02,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 98 transitions, 725 flow [2021-04-28 22:39:02,973 INFO L129 PetriNetUnfolder]: 1870/4186 cut-off events. [2021-04-28 22:39:02,974 INFO L130 PetriNetUnfolder]: For 5841/11595 co-relation queries the response was YES. [2021-04-28 22:39:03,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18176 conditions, 4186 events. 1870/4186 cut-off events. For 5841/11595 co-relation queries the response was YES. Maximal size of possible extension queue 1230. Compared 44582 event pairs, 231 based on Foata normal form. 12/1218 useless extension candidates. Maximal degree in co-relation 18150. Up to 3641 conditions per place. [2021-04-28 22:39:03,086 INFO L146 LiptonReduction]: Number of co-enabled transitions 2004 [2021-04-28 22:39:03,103 INFO L158 LiptonReduction]: Checked pairs total: 372 [2021-04-28 22:39:03,104 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:39:03,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 719 [2021-04-28 22:39:03,105 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 98 transitions, 725 flow [2021-04-28 22:39:03,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 235.8) internal successors, (1179), 5 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:03,106 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:39:03,106 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:39:03,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:39:03,106 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:39:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:39:03,107 INFO L82 PathProgramCache]: Analyzing trace with hash 63684534, now seen corresponding path program 1 times [2021-04-28 22:39:03,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:39:03,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709083110] [2021-04-28 22:39:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:39:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:39:03,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:03,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:39:03,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:03,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:39:03,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709083110] [2021-04-28 22:39:03,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:39:03,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:39:03,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78431601] [2021-04-28 22:39:03,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:39:03,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:39:03,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:39:03,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:39:03,225 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 318 [2021-04-28 22:39:03,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 98 transitions, 725 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:03,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:39:03,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 318 [2021-04-28 22:39:03,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:39:04,264 INFO L129 PetriNetUnfolder]: 3359/7382 cut-off events. [2021-04-28 22:39:04,264 INFO L130 PetriNetUnfolder]: For 12635/78344 co-relation queries the response was YES. [2021-04-28 22:39:04,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32091 conditions, 7382 events. 3359/7382 cut-off events. For 12635/78344 co-relation queries the response was YES. Maximal size of possible extension queue 2271. Compared 81361 event pairs, 432 based on Foata normal form. 88/2022 useless extension candidates. Maximal degree in co-relation 32063. Up to 6554 conditions per place. [2021-04-28 22:39:04,367 INFO L132 encePairwiseOnDemand]: 315/318 looper letters, 3 selfloop transitions, 3 changer transitions 0/98 dead transitions. [2021-04-28 22:39:04,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 737 flow [2021-04-28 22:39:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:39:04,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:39:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2021-04-28 22:39:04,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7012578616352201 [2021-04-28 22:39:04,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 669 transitions. [2021-04-28 22:39:04,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 669 transitions. [2021-04-28 22:39:04,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:39:04,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 669 transitions. [2021-04-28 22:39:04,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:04,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:04,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:04,379 INFO L185 Difference]: Start difference. First operand has 75 places, 98 transitions, 725 flow. Second operand 3 states and 669 transitions. [2021-04-28 22:39:04,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 737 flow [2021-04-28 22:39:05,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 98 transitions, 608 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-28 22:39:05,080 INFO L241 Difference]: Finished difference. Result has 75 places, 98 transitions, 607 flow [2021-04-28 22:39:05,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=607, PETRI_PLACES=75, PETRI_TRANSITIONS=98} [2021-04-28 22:39:05,080 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -51 predicate places. [2021-04-28 22:39:05,080 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:39:05,080 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 98 transitions, 607 flow [2021-04-28 22:39:05,081 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 98 transitions, 607 flow [2021-04-28 22:39:05,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 98 transitions, 607 flow [2021-04-28 22:39:05,837 INFO L129 PetriNetUnfolder]: 3359/7374 cut-off events. [2021-04-28 22:39:05,838 INFO L130 PetriNetUnfolder]: For 6447/6951 co-relation queries the response was YES. [2021-04-28 22:39:05,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24705 conditions, 7374 events. 3359/7374 cut-off events. For 6447/6951 co-relation queries the response was YES. Maximal size of possible extension queue 2169. Compared 84582 event pairs, 432 based on Foata normal form. 14/2053 useless extension candidates. Maximal degree in co-relation 24679. Up to 3457 conditions per place. [2021-04-28 22:39:06,176 INFO L146 LiptonReduction]: Number of co-enabled transitions 2002 [2021-04-28 22:39:06,201 INFO L158 LiptonReduction]: Checked pairs total: 372 [2021-04-28 22:39:06,201 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:39:06,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1121 [2021-04-28 22:39:06,203 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 98 transitions, 607 flow [2021-04-28 22:39:06,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:06,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:39:06,204 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:39:06,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:39:06,204 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:39:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:39:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash -127320167, now seen corresponding path program 1 times [2021-04-28 22:39:06,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:39:06,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310338086] [2021-04-28 22:39:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:39:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:39:06,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:06,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:39:06,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:06,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:06,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:06,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:39:06,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310338086] [2021-04-28 22:39:06,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:39:06,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:39:06,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726821373] [2021-04-28 22:39:06,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:39:06,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:39:06,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:39:06,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:39:06,313 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 318 [2021-04-28 22:39:06,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 98 transitions, 607 flow. Second operand has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:06,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:39:06,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 318 [2021-04-28 22:39:06,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:39:07,978 INFO L129 PetriNetUnfolder]: 6307/13452 cut-off events. [2021-04-28 22:39:07,978 INFO L130 PetriNetUnfolder]: For 13937/22188 co-relation queries the response was YES. [2021-04-28 22:39:08,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45167 conditions, 13452 events. 6307/13452 cut-off events. For 13937/22188 co-relation queries the response was YES. Maximal size of possible extension queue 3945. Compared 160368 event pairs, 873 based on Foata normal form. 95/3575 useless extension candidates. Maximal degree in co-relation 45139. Up to 6184 conditions per place. [2021-04-28 22:39:08,062 INFO L132 encePairwiseOnDemand]: 315/318 looper letters, 4 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2021-04-28 22:39:08,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 100 transitions, 633 flow [2021-04-28 22:39:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:39:08,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:39:08,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 871 transitions. [2021-04-28 22:39:08,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.684748427672956 [2021-04-28 22:39:08,069 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 871 transitions. [2021-04-28 22:39:08,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 871 transitions. [2021-04-28 22:39:08,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:39:08,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 871 transitions. [2021-04-28 22:39:08,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 217.75) internal successors, (871), 4 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:08,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:08,077 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:08,077 INFO L185 Difference]: Start difference. First operand has 75 places, 98 transitions, 607 flow. Second operand 4 states and 871 transitions. [2021-04-28 22:39:08,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 100 transitions, 633 flow [2021-04-28 22:39:09,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 100 transitions, 628 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:39:09,664 INFO L241 Difference]: Finished difference. Result has 79 places, 99 transitions, 615 flow [2021-04-28 22:39:09,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=615, PETRI_PLACES=79, PETRI_TRANSITIONS=99} [2021-04-28 22:39:09,664 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -47 predicate places. [2021-04-28 22:39:09,664 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:39:09,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 99 transitions, 615 flow [2021-04-28 22:39:09,665 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 99 transitions, 615 flow [2021-04-28 22:39:09,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 99 transitions, 615 flow [2021-04-28 22:39:10,858 INFO L129 PetriNetUnfolder]: 6280/13408 cut-off events. [2021-04-28 22:39:10,858 INFO L130 PetriNetUnfolder]: For 11455/12041 co-relation queries the response was YES. [2021-04-28 22:39:10,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44986 conditions, 13408 events. 6280/13408 cut-off events. For 11455/12041 co-relation queries the response was YES. Maximal size of possible extension queue 3581. Compared 162634 event pairs, 873 based on Foata normal form. 23/3678 useless extension candidates. Maximal degree in co-relation 44958. Up to 6184 conditions per place. [2021-04-28 22:39:11,184 INFO L146 LiptonReduction]: Number of co-enabled transitions 2052 [2021-04-28 22:39:11,209 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 22:39:11,209 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:39:11,209 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1545 [2021-04-28 22:39:11,210 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 99 transitions, 615 flow [2021-04-28 22:39:11,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:11,211 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:39:11,211 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:39:11,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:39:11,211 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:39:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:39:11,212 INFO L82 PathProgramCache]: Analyzing trace with hash -91919972, now seen corresponding path program 1 times [2021-04-28 22:39:11,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:39:11,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120644575] [2021-04-28 22:39:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:39:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:39:11,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:11,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:11,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:11,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:11,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:11,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:39:11,315 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:39:11,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:39:11,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:11,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:39:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:39:11,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120644575] [2021-04-28 22:39:11,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:39:11,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:39:11,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999088232] [2021-04-28 22:39:11,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:39:11,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:39:11,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:39:11,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:39:11,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 318 [2021-04-28 22:39:11,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 99 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:11,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:39:11,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 318 [2021-04-28 22:39:11,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:39:13,470 INFO L129 PetriNetUnfolder]: 5806/13449 cut-off events. [2021-04-28 22:39:13,471 INFO L130 PetriNetUnfolder]: For 15398/151905 co-relation queries the response was YES. [2021-04-28 22:39:13,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56473 conditions, 13449 events. 5806/13449 cut-off events. For 15398/151905 co-relation queries the response was YES. Maximal size of possible extension queue 4047. Compared 169082 event pairs, 0 based on Foata normal form. 549/4089 useless extension candidates. Maximal degree in co-relation 56443. Up to 7425 conditions per place. [2021-04-28 22:39:13,580 INFO L132 encePairwiseOnDemand]: 301/318 looper letters, 5 selfloop transitions, 61 changer transitions 34/118 dead transitions. [2021-04-28 22:39:13,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 118 transitions, 914 flow [2021-04-28 22:39:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:39:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:39:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2199 transitions. [2021-04-28 22:39:13,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7683438155136268 [2021-04-28 22:39:13,592 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2199 transitions. [2021-04-28 22:39:13,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2199 transitions. [2021-04-28 22:39:13,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:39:13,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2199 transitions. [2021-04-28 22:39:13,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 244.33333333333334) internal successors, (2199), 9 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:13,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 318.0) internal successors, (3180), 10 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:13,609 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 318.0) internal successors, (3180), 10 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:13,609 INFO L185 Difference]: Start difference. First operand has 79 places, 99 transitions, 615 flow. Second operand 9 states and 2199 transitions. [2021-04-28 22:39:13,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 118 transitions, 914 flow [2021-04-28 22:39:15,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 118 transitions, 893 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-04-28 22:39:15,249 INFO L241 Difference]: Finished difference. Result has 87 places, 82 transitions, 658 flow [2021-04-28 22:39:15,249 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=658, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2021-04-28 22:39:15,249 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -39 predicate places. [2021-04-28 22:39:15,249 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:39:15,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 658 flow [2021-04-28 22:39:15,250 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 658 flow [2021-04-28 22:39:15,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 82 transitions, 658 flow [2021-04-28 22:39:15,352 INFO L129 PetriNetUnfolder]: 391/1483 cut-off events. [2021-04-28 22:39:15,352 INFO L130 PetriNetUnfolder]: For 2316/5508 co-relation queries the response was YES. [2021-04-28 22:39:15,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6575 conditions, 1483 events. 391/1483 cut-off events. For 2316/5508 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 16337 event pairs, 0 based on Foata normal form. 1/437 useless extension candidates. Maximal degree in co-relation 6545. Up to 972 conditions per place. [2021-04-28 22:39:15,366 INFO L146 LiptonReduction]: Number of co-enabled transitions 828 [2021-04-28 22:39:15,845 INFO L158 LiptonReduction]: Checked pairs total: 26 [2021-04-28 22:39:15,845 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:39:15,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 597 [2021-04-28 22:39:15,847 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 82 transitions, 660 flow [2021-04-28 22:39:15,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:15,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:39:15,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:39:15,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:39:15,863 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:39:15,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:39:15,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1458522564, now seen corresponding path program 1 times [2021-04-28 22:39:15,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:39:15,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582835502] [2021-04-28 22:39:15,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:39:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:39:15,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:15,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:39:15,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:15,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 22:39:16,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:16,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 22:39:16,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:16,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 22:39:16,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:39:16,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:39:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:39:16,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582835502] [2021-04-28 22:39:16,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:39:16,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:39:16,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302655467] [2021-04-28 22:39:16,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:39:16,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:39:16,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:39:16,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:39:16,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 319 [2021-04-28 22:39:16,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 82 transitions, 660 flow. Second operand has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:16,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:39:16,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 319 [2021-04-28 22:39:16,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:39:16,711 INFO L129 PetriNetUnfolder]: 619/2293 cut-off events. [2021-04-28 22:39:16,711 INFO L130 PetriNetUnfolder]: For 5613/15352 co-relation queries the response was YES. [2021-04-28 22:39:16,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10393 conditions, 2293 events. 619/2293 cut-off events. For 5613/15352 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 26456 event pairs, 0 based on Foata normal form. 38/688 useless extension candidates. Maximal degree in co-relation 10361. Up to 1521 conditions per place. [2021-04-28 22:39:16,725 INFO L132 encePairwiseOnDemand]: 314/319 looper letters, 6 selfloop transitions, 5 changer transitions 8/85 dead transitions. [2021-04-28 22:39:16,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 711 flow [2021-04-28 22:39:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:39:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:39:16,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 841 transitions. [2021-04-28 22:39:16,732 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5272727272727272 [2021-04-28 22:39:16,732 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 841 transitions. [2021-04-28 22:39:16,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 841 transitions. [2021-04-28 22:39:16,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:39:16,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 841 transitions. [2021-04-28 22:39:16,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.2) internal successors, (841), 5 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:16,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:16,739 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:16,739 INFO L185 Difference]: Start difference. First operand has 80 places, 82 transitions, 660 flow. Second operand 5 states and 841 transitions. [2021-04-28 22:39:16,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 711 flow [2021-04-28 22:39:16,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 85 transitions, 499 flow, removed 50 selfloop flow, removed 16 redundant places. [2021-04-28 22:39:16,992 INFO L241 Difference]: Finished difference. Result has 69 places, 76 transitions, 429 flow [2021-04-28 22:39:16,992 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2021-04-28 22:39:16,993 INFO L343 CegarLoopForPetriNet]: 126 programPoint places, -57 predicate places. [2021-04-28 22:39:16,993 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:39:16,993 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 76 transitions, 429 flow [2021-04-28 22:39:16,993 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 76 transitions, 429 flow [2021-04-28 22:39:16,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 76 transitions, 429 flow [2021-04-28 22:39:17,097 INFO L129 PetriNetUnfolder]: 241/1589 cut-off events. [2021-04-28 22:39:17,097 INFO L130 PetriNetUnfolder]: For 1112/1448 co-relation queries the response was YES. [2021-04-28 22:39:17,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5330 conditions, 1589 events. 241/1589 cut-off events. For 1112/1448 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 19978 event pairs, 0 based on Foata normal form. 1/570 useless extension candidates. Maximal degree in co-relation 5310. Up to 882 conditions per place. [2021-04-28 22:39:17,108 INFO L146 LiptonReduction]: Number of co-enabled transitions 806 [2021-04-28 22:39:17,491 INFO L158 LiptonReduction]: Checked pairs total: 45 [2021-04-28 22:39:17,491 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:39:17,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 498 [2021-04-28 22:39:17,495 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 76 transitions, 430 flow [2021-04-28 22:39:17,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:39:17,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:39:17,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:39:17,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:39:17,502 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:39:17,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:39:17,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1272668537, now seen corresponding path program 1 times [2021-04-28 22:39:17,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:39:17,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859247197] [2021-04-28 22:39:17,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:39:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:39:17,577 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:39:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:39:17,646 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:39:17,705 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 22:39:17,705 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 22:39:17,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 22:39:17,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 10:39:17 BasicIcfg [2021-04-28 22:39:17,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 22:39:17,858 INFO L168 Benchmark]: Toolchain (without parser) took 157750.56 ms. Allocated memory was 302.0 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 274.8 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 355.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:39:17,858 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory was 270.5 MB in the beginning and 270.4 MB in the end (delta: 66.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 22:39:17,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 885.89 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 270.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.0 GB. [2021-04-28 22:39:17,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.59 ms. Allocated memory is still 302.0 MB. Free memory was 269.8 MB in the beginning and 267.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:39:17,859 INFO L168 Benchmark]: Boogie Preprocessor took 47.37 ms. Allocated memory is still 302.0 MB. Free memory was 267.7 MB in the beginning and 264.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:39:17,861 INFO L168 Benchmark]: RCFGBuilder took 2051.55 ms. Allocated memory was 302.0 MB in the beginning and 375.4 MB in the end (delta: 73.4 MB). Free memory was 264.8 MB in the beginning and 338.5 MB in the end (delta: -73.6 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.0 GB. [2021-04-28 22:39:17,861 INFO L168 Benchmark]: TraceAbstraction took 154632.99 ms. Allocated memory was 375.4 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 338.5 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 345.3 MB. Max. memory is 16.0 GB. [2021-04-28 22:39:17,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory was 270.5 MB in the beginning and 270.4 MB in the end (delta: 66.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 885.89 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 270.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.59 ms. Allocated memory is still 302.0 MB. Free memory was 269.8 MB in the beginning and 267.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 47.37 ms. Allocated memory is still 302.0 MB. Free memory was 267.7 MB in the beginning and 264.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2051.55 ms. Allocated memory was 302.0 MB in the beginning and 375.4 MB in the end (delta: 73.4 MB). Free memory was 264.8 MB in the beginning and 338.5 MB in the end (delta: -73.6 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 154632.99 ms. Allocated memory was 375.4 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 338.5 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 345.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 131053.4ms, 101 PlacesBefore, 126 PlacesAfterwards, 93 TransitionsBefore, 118 TransitionsAfterwards, 1578 CoEnabledTransitionPairs, 9 FixpointIterations, 144 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 222 TotalNumberOfCompositions, 15074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3988, positive: 3721, positive conditional: 3721, positive unconditional: 0, negative: 267, negative conditional: 267, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1811, positive: 1763, positive conditional: 0, positive unconditional: 1763, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1811, positive: 1763, positive conditional: 0, positive unconditional: 1763, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1811, positive: 1736, positive conditional: 0, positive unconditional: 1736, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 75, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1162, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 1047, negative conditional: 0, negative unconditional: 1047, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3988, positive: 1958, positive conditional: 1958, positive unconditional: 0, negative: 219, negative conditional: 219, negative unconditional: 0, unknown: 1811, unknown conditional: 1811, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1811, Positive cache size: 1763, Positive conditional cache size: 1763, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 287.6ms, 122 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 790 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 141, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 22, positive conditional: 2, positive unconditional: 20, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 22, positive conditional: 2, positive unconditional: 20, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 272, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 255, negative conditional: 0, negative unconditional: 255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 141, positive: 89, positive conditional: 89, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1845, Positive cache size: 1785, Positive conditional cache size: 1785, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 274.8ms, 48 PlacesBefore, 48 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 896 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 612 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 262, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 262, negative conditional: 0, negative unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1854, Positive cache size: 1788, Positive conditional cache size: 1788, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.6ms, 50 PlacesBefore, 50 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 958 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 514 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1864, Positive cache size: 1794, Positive conditional cache size: 1794, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.8ms, 56 PlacesBefore, 56 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1865, Positive cache size: 1795, Positive conditional cache size: 1795, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.2ms, 62 PlacesBefore, 62 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1867, Positive cache size: 1797, Positive conditional cache size: 1797, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.0ms, 66 PlacesBefore, 66 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1198 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 246 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, 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: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1868, Positive cache size: 1798, Positive conditional cache size: 1798, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 794.9ms, 69 PlacesBefore, 69 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 1678 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 17, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 17, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 96, positive: 60, positive conditional: 60, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1898, Positive cache size: 1828, Positive conditional cache size: 1828, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 718.0ms, 75 PlacesBefore, 75 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 2004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 29, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 29, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, positive: 68, positive conditional: 68, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1932, Positive cache size: 1862, Positive conditional cache size: 1862, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1120.6ms, 75 PlacesBefore, 75 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 2002 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 80, positive conditional: 80, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 86, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1945, Positive cache size: 1875, Positive conditional cache size: 1875, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1544.2ms, 79 PlacesBefore, 79 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 2052 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1945, Positive cache size: 1875, Positive conditional cache size: 1875, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 595.6ms, 87 PlacesBefore, 80 PlacesAfterwards, 82 TransitionsBefore, 82 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 15, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 15, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1967, Positive cache size: 1897, Positive conditional cache size: 1897, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 497.7ms, 69 PlacesBefore, 68 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 806 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 39, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 39, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 39, unknown conditional: 39, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2006, Positive cache size: 1936, Positive conditional cache size: 1936, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L735] 0 int z = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1507; [L814] FCALL, FORK 0 pthread_create(&t1507, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t1508; [L816] FCALL, FORK 0 pthread_create(&t1508, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] 0 pthread_t t1509; [L818] FCALL, FORK 0 pthread_create(&t1509, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L776] 3 y$w_buff1 = y$w_buff0 [L777] 3 y$w_buff0 = 2 [L778] 3 y$w_buff1_used = y$w_buff0_used [L779] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L781] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L782] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L783] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L784] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L788] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L741] 1 z = 1 [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L756] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L759] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L762] 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) [L762] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L762] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L763] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L763] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L764] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L764] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L765] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L765] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L766] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=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=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] 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) [L824] 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) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 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 [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 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 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$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$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$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$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$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)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$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)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 17.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 154336.7ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 14082.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 131157.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 60 SDslu, 18 SDs, 0 SdLazy, 455 SolverSat, 174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1178.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1263.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=725occurred in iteration=8, InterpolantAutomatonStates: 57, 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: 47.0ms SsaConstructionTime, 665.7ms SatisfiabilityAnalysisTime, 1896.3ms InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...