/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/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:43:58,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:43:58,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:43:58,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:43:58,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:43:58,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:43:58,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:43:58,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:43:58,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:43:58,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:43:58,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:43:58,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:43:58,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:43:58,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:43:58,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:43:58,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:43:58,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:43:58,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:43:58,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:43:58,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:43:58,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:43:58,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:43:58,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:43:58,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:43:58,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:43:58,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:43:58,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:43:58,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:43:58,346 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 [2021-03-26 00:43:58,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:43:58,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:43:58,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:43:58,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:43:58,383 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:43:58,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:43:58,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:43:58,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:43:58,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:43:58,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:43:58,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:43:58,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:43:58,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:43:58,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:43:58,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:43:58,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:43:58,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:43:58,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:43:58,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:43:58,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:43:58,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:43:58,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:43:58,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:43:58,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:43:58,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:43:58,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:43:58,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:43:58,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:43:58,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:43:58,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:43:58,388 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:43:58,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:43:58,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:43:58,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:43:58,713 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:43:58,714 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:43:58,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2021-03-26 00:43:58,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3cca06cf/b3a619571f1847148753900f39869458/FLAGd65670177 [2021-03-26 00:43:59,308 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:43:59,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2021-03-26 00:43:59,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3cca06cf/b3a619571f1847148753900f39869458/FLAGd65670177 [2021-03-26 00:43:59,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3cca06cf/b3a619571f1847148753900f39869458 [2021-03-26 00:43:59,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:43:59,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:43:59,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:43:59,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:43:59,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:43:59,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:43:59" (1/1) ... [2021-03-26 00:43:59,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1430939a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:59, skipping insertion in model container [2021-03-26 00:43:59,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:43:59" (1/1) ... [2021-03-26 00:43:59,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:43:59,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:43:59,772 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/safe020_tso.oepc.i[950,963] [2021-03-26 00:43:59,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:43:59,991 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:44:00,002 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i[950,963] [2021-03-26 00:44:00,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:44:00,114 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:44:00,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00 WrapperNode [2021-03-26 00:44:00,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:44:00,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:44:00,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:44:00,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:44:00,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:44:00,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:44:00,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:44:00,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:44:00,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... [2021-03-26 00:44:00,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:44:00,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:44:00,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:44:00,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:44:00,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:44:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:44:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:44:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:44:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:44:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:44:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:44:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:44:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:44:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:44:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:44:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:44:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:44:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:44:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:44:00,279 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:44:00,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:44:00,603 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:44:00,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:44:00 BoogieIcfgContainer [2021-03-26 00:44:00,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:44:00,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:44:00,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:44:00,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:44:00,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:43:59" (1/3) ... [2021-03-26 00:44:00,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9ff363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:44:00, skipping insertion in model container [2021-03-26 00:44:00,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:00" (2/3) ... [2021-03-26 00:44:00,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9ff363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:44:00, skipping insertion in model container [2021-03-26 00:44:00,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:44:00" (3/3) ... [2021-03-26 00:44:00,611 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2021-03-26 00:44:00,614 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:44:00,617 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:44:00,617 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:44:00,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:00,652 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:44:00,667 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:44:00,685 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:44:00,685 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:44:00,685 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:44:00,685 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:44:00,687 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:44:00,688 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:44:00,688 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:44:00,688 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:44:00,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 00:44:00,747 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-26 00:44:00,747 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:00,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-03-26 00:44:00,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 00:44:00,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-03-26 00:44:00,755 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:00,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 00:44:00,772 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 00:44:00,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-03-26 00:44:00,786 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-26 00:44:00,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:00,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-03-26 00:44:00,788 INFO L142 LiptonReduction]: Number of co-enabled transitions 804 [2021-03-26 00:44:02,359 INFO L154 LiptonReduction]: Checked pairs total: 958 [2021-03-26 00:44:02,359 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 00:44:02,361 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1607 [2021-03-26 00:44:02,371 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 00:44:02,371 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:02,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:02,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:02,372 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:02,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:02,376 INFO L82 PathProgramCache]: Analyzing trace with hash 456015442, now seen corresponding path program 1 times [2021-03-26 00:44:02,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:02,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339635451] [2021-03-26 00:44:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:02,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:02,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:02,581 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:44:02,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:44:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:02,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339635451] [2021-03-26 00:44:02,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:02,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:44:02,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439641547] [2021-03-26 00:44:02,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:02,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:02,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:02,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:02,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 111 [2021-03-26 00:44:02,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:02,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:02,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 111 [2021-03-26 00:44:02,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:02,676 INFO L129 PetriNetUnfolder]: 8/48 cut-off events. [2021-03-26 00:44:02,676 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:02,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 48 events. 8/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 121 event pairs, 2 based on Foata normal form. 4/49 useless extension candidates. Maximal degree in co-relation 73. Up to 19 conditions per place. [2021-03-26 00:44:02,678 INFO L132 encePairwiseOnDemand]: 105/111 looper letters, 6 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2021-03-26 00:44:02,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 79 flow [2021-03-26 00:44:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:44:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:44:02,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 377 transitions. [2021-03-26 00:44:02,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8490990990990991 [2021-03-26 00:44:02,696 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 377 transitions. [2021-03-26 00:44:02,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 377 transitions. [2021-03-26 00:44:02,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:02,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 377 transitions. [2021-03-26 00:44:02,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:02,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:02,712 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:02,714 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 49 flow. Second operand 4 states and 377 transitions. [2021-03-26 00:44:02,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 79 flow [2021-03-26 00:44:02,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:44:02,722 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 73 flow [2021-03-26 00:44:02,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2021-03-26 00:44:02,724 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2021-03-26 00:44:02,724 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:02,724 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 22 transitions, 73 flow [2021-03-26 00:44:02,725 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 22 transitions, 73 flow [2021-03-26 00:44:02,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 22 transitions, 73 flow [2021-03-26 00:44:02,732 INFO L129 PetriNetUnfolder]: 6/45 cut-off events. [2021-03-26 00:44:02,732 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-26 00:44:02,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 45 events. 6/45 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 124 event pairs, 4 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 76. Up to 16 conditions per place. [2021-03-26 00:44:02,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 00:44:03,072 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 00:44:03,072 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:44:03,072 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 348 [2021-03-26 00:44:03,074 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 67 flow [2021-03-26 00:44:03,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,074 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:03,074 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:03,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:44:03,075 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:03,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1251576527, now seen corresponding path program 1 times [2021-03-26 00:44:03,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:03,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143920512] [2021-03-26 00:44:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:03,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:03,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:03,165 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:44:03,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:44:03,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:03,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143920512] [2021-03-26 00:44:03,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:03,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:03,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105911435] [2021-03-26 00:44:03,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:03,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:03,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:03,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:03,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 114 [2021-03-26 00:44:03,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:03,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 114 [2021-03-26 00:44:03,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:03,237 INFO L129 PetriNetUnfolder]: 35/106 cut-off events. [2021-03-26 00:44:03,237 INFO L130 PetriNetUnfolder]: For 64/84 co-relation queries the response was YES. [2021-03-26 00:44:03,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 106 events. 35/106 cut-off events. For 64/84 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 412 event pairs, 2 based on Foata normal form. 9/114 useless extension candidates. Maximal degree in co-relation 260. Up to 35 conditions per place. [2021-03-26 00:44:03,240 INFO L132 encePairwiseOnDemand]: 107/114 looper letters, 9 selfloop transitions, 15 changer transitions 0/34 dead transitions. [2021-03-26 00:44:03,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 183 flow [2021-03-26 00:44:03,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:44:03,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:44:03,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2021-03-26 00:44:03,246 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8017543859649123 [2021-03-26 00:44:03,246 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2021-03-26 00:44:03,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2021-03-26 00:44:03,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:03,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2021-03-26 00:44:03,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,251 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,251 INFO L185 Difference]: Start difference. First operand has 29 places, 19 transitions, 67 flow. Second operand 5 states and 457 transitions. [2021-03-26 00:44:03,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 183 flow [2021-03-26 00:44:03,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:44:03,254 INFO L241 Difference]: Finished difference. Result has 35 places, 30 transitions, 178 flow [2021-03-26 00:44:03,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2021-03-26 00:44:03,255 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2021-03-26 00:44:03,255 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:03,255 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 30 transitions, 178 flow [2021-03-26 00:44:03,257 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 30 transitions, 178 flow [2021-03-26 00:44:03,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 178 flow [2021-03-26 00:44:03,278 INFO L129 PetriNetUnfolder]: 26/94 cut-off events. [2021-03-26 00:44:03,278 INFO L130 PetriNetUnfolder]: For 80/98 co-relation queries the response was YES. [2021-03-26 00:44:03,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 94 events. 26/94 cut-off events. For 80/98 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 394 event pairs, 7 based on Foata normal form. 3/93 useless extension candidates. Maximal degree in co-relation 285. Up to 33 conditions per place. [2021-03-26 00:44:03,282 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 00:44:03,436 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:44:03,632 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:44:03,692 INFO L154 LiptonReduction]: Checked pairs total: 194 [2021-03-26 00:44:03,692 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:44:03,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 437 [2021-03-26 00:44:03,693 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 176 flow [2021-03-26 00:44:03,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:03,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:03,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:44:03,694 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:03,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:03,694 INFO L82 PathProgramCache]: Analyzing trace with hash 792750374, now seen corresponding path program 1 times [2021-03-26 00:44:03,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:03,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518207927] [2021-03-26 00:44:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:03,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:03,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:03,733 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:44:03,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:44:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:03,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518207927] [2021-03-26 00:44:03,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:03,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:03,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419748930] [2021-03-26 00:44:03,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:44:03,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:03,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:44:03,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:44:03,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-26 00:44:03,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:03,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-26 00:44:03,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:03,771 INFO L129 PetriNetUnfolder]: 25/98 cut-off events. [2021-03-26 00:44:03,771 INFO L130 PetriNetUnfolder]: For 200/264 co-relation queries the response was YES. [2021-03-26 00:44:03,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 98 events. 25/98 cut-off events. For 200/264 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 422 event pairs, 2 based on Foata normal form. 12/108 useless extension candidates. Maximal degree in co-relation 354. Up to 32 conditions per place. [2021-03-26 00:44:03,772 INFO L132 encePairwiseOnDemand]: 108/115 looper letters, 7 selfloop transitions, 8 changer transitions 12/36 dead transitions. [2021-03-26 00:44:03,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 285 flow [2021-03-26 00:44:03,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:44:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:44:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-03-26 00:44:03,774 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7878260869565218 [2021-03-26 00:44:03,774 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-03-26 00:44:03,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-03-26 00:44:03,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:03,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-03-26 00:44:03,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,777 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,777 INFO L185 Difference]: Start difference. First operand has 34 places, 29 transitions, 176 flow. Second operand 5 states and 453 transitions. [2021-03-26 00:44:03,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 285 flow [2021-03-26 00:44:03,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:44:03,780 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 148 flow [2021-03-26 00:44:03,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2021-03-26 00:44:03,780 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 10 predicate places. [2021-03-26 00:44:03,781 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:03,781 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 22 transitions, 148 flow [2021-03-26 00:44:03,781 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 22 transitions, 148 flow [2021-03-26 00:44:03,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 22 transitions, 148 flow [2021-03-26 00:44:03,786 INFO L129 PetriNetUnfolder]: 9/48 cut-off events. [2021-03-26 00:44:03,786 INFO L130 PetriNetUnfolder]: For 79/82 co-relation queries the response was YES. [2021-03-26 00:44:03,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 48 events. 9/48 cut-off events. For 79/82 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 131 event pairs, 4 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 171. Up to 20 conditions per place. [2021-03-26 00:44:03,787 INFO L142 LiptonReduction]: Number of co-enabled transitions 110 [2021-03-26 00:44:03,788 INFO L154 LiptonReduction]: Checked pairs total: 46 [2021-03-26 00:44:03,789 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:03,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 00:44:03,790 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 148 flow [2021-03-26 00:44:03,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:03,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:03,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:44:03,791 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:03,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:03,791 INFO L82 PathProgramCache]: Analyzing trace with hash 405123337, now seen corresponding path program 1 times [2021-03-26 00:44:03,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:03,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295476062] [2021-03-26 00:44:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:03,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:03,824 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:44:03,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:44:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:03,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295476062] [2021-03-26 00:44:03,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:03,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:44:03,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068966398] [2021-03-26 00:44:03,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:03,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:03,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:03,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:03,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-03-26 00:44:03,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:03,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-03-26 00:44:03,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:03,854 INFO L129 PetriNetUnfolder]: 7/42 cut-off events. [2021-03-26 00:44:03,854 INFO L130 PetriNetUnfolder]: For 103/119 co-relation queries the response was YES. [2021-03-26 00:44:03,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 42 events. 7/42 cut-off events. For 103/119 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 105 event pairs, 3 based on Foata normal form. 3/44 useless extension candidates. Maximal degree in co-relation 169. Up to 18 conditions per place. [2021-03-26 00:44:03,855 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 4 selfloop transitions, 8 changer transitions 0/23 dead transitions. [2021-03-26 00:44:03,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 23 transitions, 182 flow [2021-03-26 00:44:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:44:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:44:03,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2021-03-26 00:44:03,857 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8239130434782609 [2021-03-26 00:44:03,857 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2021-03-26 00:44:03,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2021-03-26 00:44:03,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:03,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2021-03-26 00:44:03,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,860 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,860 INFO L185 Difference]: Start difference. First operand has 40 places, 22 transitions, 148 flow. Second operand 4 states and 379 transitions. [2021-03-26 00:44:03,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 23 transitions, 182 flow [2021-03-26 00:44:03,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 23 transitions, 143 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-26 00:44:03,864 INFO L241 Difference]: Finished difference. Result has 37 places, 23 transitions, 142 flow [2021-03-26 00:44:03,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2021-03-26 00:44:03,865 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2021-03-26 00:44:03,865 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:03,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 23 transitions, 142 flow [2021-03-26 00:44:03,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 23 transitions, 142 flow [2021-03-26 00:44:03,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 23 transitions, 142 flow [2021-03-26 00:44:03,870 INFO L129 PetriNetUnfolder]: 7/42 cut-off events. [2021-03-26 00:44:03,870 INFO L130 PetriNetUnfolder]: For 46/50 co-relation queries the response was YES. [2021-03-26 00:44:03,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 42 events. 7/42 cut-off events. For 46/50 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 110 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 132. Up to 17 conditions per place. [2021-03-26 00:44:03,871 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-26 00:44:03,873 INFO L154 LiptonReduction]: Checked pairs total: 40 [2021-03-26 00:44:03,873 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:03,873 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 00:44:03,876 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 142 flow [2021-03-26 00:44:03,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,876 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:03,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:03,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:44:03,877 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1651848443, now seen corresponding path program 1 times [2021-03-26 00:44:03,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:03,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427699292] [2021-03-26 00:44:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:03,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:03,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:03,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:03,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427699292] [2021-03-26 00:44:03,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:03,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:44:03,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476110409] [2021-03-26 00:44:03,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:44:03,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:03,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:44:03,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:44:03,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-03-26 00:44:03,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:03,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-03-26 00:44:03,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:03,976 INFO L129 PetriNetUnfolder]: 45/119 cut-off events. [2021-03-26 00:44:03,976 INFO L130 PetriNetUnfolder]: For 166/184 co-relation queries the response was YES. [2021-03-26 00:44:03,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 119 events. 45/119 cut-off events. For 166/184 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 485 event pairs, 18 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 337. Up to 77 conditions per place. [2021-03-26 00:44:03,977 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 4 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2021-03-26 00:44:03,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 26 transitions, 164 flow [2021-03-26 00:44:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:44:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:44:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2021-03-26 00:44:03,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2021-03-26 00:44:03,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2021-03-26 00:44:03,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2021-03-26 00:44:03,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:03,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2021-03-26 00:44:03,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:03,984 INFO L185 Difference]: Start difference. First operand has 37 places, 23 transitions, 142 flow. Second operand 3 states and 285 transitions. [2021-03-26 00:44:03,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 26 transitions, 164 flow [2021-03-26 00:44:03,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 156 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 00:44:03,987 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 160 flow [2021-03-26 00:44:03,987 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2021-03-26 00:44:03,987 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2021-03-26 00:44:03,987 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:03,987 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 26 transitions, 160 flow [2021-03-26 00:44:03,987 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 26 transitions, 160 flow [2021-03-26 00:44:03,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 26 transitions, 160 flow [2021-03-26 00:44:03,998 INFO L129 PetriNetUnfolder]: 43/116 cut-off events. [2021-03-26 00:44:03,998 INFO L130 PetriNetUnfolder]: For 144/158 co-relation queries the response was YES. [2021-03-26 00:44:03,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 116 events. 43/116 cut-off events. For 144/158 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 509 event pairs, 19 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 331. Up to 73 conditions per place. [2021-03-26 00:44:03,999 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 00:44:04,001 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:44:04,001 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:04,001 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:44:04,003 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 160 flow [2021-03-26 00:44:04,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:04,003 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:04,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:44:04,003 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:04,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:04,004 INFO L82 PathProgramCache]: Analyzing trace with hash -25263401, now seen corresponding path program 1 times [2021-03-26 00:44:04,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:04,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305090899] [2021-03-26 00:44:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:04,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:04,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:04,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:04,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305090899] [2021-03-26 00:44:04,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:04,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:04,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836805538] [2021-03-26 00:44:04,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:04,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:04,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:04,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:04,063 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-03-26 00:44:04,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:04,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-03-26 00:44:04,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:04,082 INFO L129 PetriNetUnfolder]: 23/76 cut-off events. [2021-03-26 00:44:04,082 INFO L130 PetriNetUnfolder]: For 90/118 co-relation queries the response was YES. [2021-03-26 00:44:04,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 76 events. 23/76 cut-off events. For 90/118 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 247 event pairs, 3 based on Foata normal form. 20/93 useless extension candidates. Maximal degree in co-relation 257. Up to 48 conditions per place. [2021-03-26 00:44:04,082 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 4 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2021-03-26 00:44:04,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 29 transitions, 194 flow [2021-03-26 00:44:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:44:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:44:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2021-03-26 00:44:04,084 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2021-03-26 00:44:04,084 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2021-03-26 00:44:04,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2021-03-26 00:44:04,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:04,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2021-03-26 00:44:04,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,087 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,087 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 160 flow. Second operand 4 states and 380 transitions. [2021-03-26 00:44:04,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 29 transitions, 194 flow [2021-03-26 00:44:04,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 175 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:44:04,089 INFO L241 Difference]: Finished difference. Result has 40 places, 29 transitions, 181 flow [2021-03-26 00:44:04,089 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2021-03-26 00:44:04,089 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 10 predicate places. [2021-03-26 00:44:04,089 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:04,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 29 transitions, 181 flow [2021-03-26 00:44:04,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 29 transitions, 181 flow [2021-03-26 00:44:04,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 29 transitions, 181 flow [2021-03-26 00:44:04,095 INFO L129 PetriNetUnfolder]: 22/74 cut-off events. [2021-03-26 00:44:04,096 INFO L130 PetriNetUnfolder]: For 60/78 co-relation queries the response was YES. [2021-03-26 00:44:04,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 74 events. 22/74 cut-off events. For 60/78 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 238 event pairs, 3 based on Foata normal form. 5/78 useless extension candidates. Maximal degree in co-relation 238. Up to 44 conditions per place. [2021-03-26 00:44:04,097 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-26 00:44:04,099 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:44:04,099 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:04,099 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 00:44:04,102 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 181 flow [2021-03-26 00:44:04,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:04,102 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:04,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:44:04,103 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:04,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:04,103 INFO L82 PathProgramCache]: Analyzing trace with hash 223997766, now seen corresponding path program 1 times [2021-03-26 00:44:04,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:04,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566201677] [2021-03-26 00:44:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:04,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:04,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:04,159 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:44:04,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:44:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:04,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566201677] [2021-03-26 00:44:04,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:04,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:04,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645901818] [2021-03-26 00:44:04,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:04,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:04,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:04,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:04,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-26 00:44:04,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 181 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:04,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-26 00:44:04,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:04,205 INFO L129 PetriNetUnfolder]: 24/83 cut-off events. [2021-03-26 00:44:04,205 INFO L130 PetriNetUnfolder]: For 115/171 co-relation queries the response was YES. [2021-03-26 00:44:04,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 83 events. 24/83 cut-off events. For 115/171 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 300 event pairs, 2 based on Foata normal form. 21/101 useless extension candidates. Maximal degree in co-relation 289. Up to 54 conditions per place. [2021-03-26 00:44:04,206 INFO L132 encePairwiseOnDemand]: 108/115 looper letters, 5 selfloop transitions, 11 changer transitions 2/32 dead transitions. [2021-03-26 00:44:04,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 234 flow [2021-03-26 00:44:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:44:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:44:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2021-03-26 00:44:04,207 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.782608695652174 [2021-03-26 00:44:04,207 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2021-03-26 00:44:04,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2021-03-26 00:44:04,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:04,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2021-03-26 00:44:04,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,210 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,210 INFO L185 Difference]: Start difference. First operand has 40 places, 29 transitions, 181 flow. Second operand 5 states and 450 transitions. [2021-03-26 00:44:04,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 234 flow [2021-03-26 00:44:04,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 220 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 00:44:04,213 INFO L241 Difference]: Finished difference. Result has 44 places, 30 transitions, 219 flow [2021-03-26 00:44:04,213 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2021-03-26 00:44:04,213 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2021-03-26 00:44:04,214 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:04,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 30 transitions, 219 flow [2021-03-26 00:44:04,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 30 transitions, 219 flow [2021-03-26 00:44:04,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 30 transitions, 219 flow [2021-03-26 00:44:04,235 INFO L129 PetriNetUnfolder]: 19/77 cut-off events. [2021-03-26 00:44:04,236 INFO L130 PetriNetUnfolder]: For 90/118 co-relation queries the response was YES. [2021-03-26 00:44:04,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 77 events. 19/77 cut-off events. For 90/118 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 293 event pairs, 2 based on Foata normal form. 6/80 useless extension candidates. Maximal degree in co-relation 244. Up to 40 conditions per place. [2021-03-26 00:44:04,237 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 00:44:04,304 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-26 00:44:04,304 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:44:04,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-26 00:44:04,307 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 217 flow [2021-03-26 00:44:04,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:04,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:04,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:44:04,309 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:04,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:04,309 INFO L82 PathProgramCache]: Analyzing trace with hash 629261828, now seen corresponding path program 2 times [2021-03-26 00:44:04,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:04,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500139272] [2021-03-26 00:44:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:04,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:04,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:04,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:04,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:04,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:04,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:44:04,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500139272] [2021-03-26 00:44:04,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:04,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:44:04,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312013260] [2021-03-26 00:44:04,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:44:04,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:04,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:44:04,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:44:04,365 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 116 [2021-03-26 00:44:04,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:04,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 116 [2021-03-26 00:44:04,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:04,387 INFO L129 PetriNetUnfolder]: 15/57 cut-off events. [2021-03-26 00:44:04,387 INFO L130 PetriNetUnfolder]: For 158/247 co-relation queries the response was YES. [2021-03-26 00:44:04,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 57 events. 15/57 cut-off events. For 158/247 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 179 event pairs, 0 based on Foata normal form. 41/96 useless extension candidates. Maximal degree in co-relation 208. Up to 23 conditions per place. [2021-03-26 00:44:04,388 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-03-26 00:44:04,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 28 transitions, 221 flow [2021-03-26 00:44:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:44:04,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:44:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 470 transitions. [2021-03-26 00:44:04,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8103448275862069 [2021-03-26 00:44:04,390 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 470 transitions. [2021-03-26 00:44:04,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 470 transitions. [2021-03-26 00:44:04,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:04,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 470 transitions. [2021-03-26 00:44:04,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,393 INFO L185 Difference]: Start difference. First operand has 43 places, 29 transitions, 217 flow. Second operand 5 states and 470 transitions. [2021-03-26 00:44:04,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 28 transitions, 221 flow [2021-03-26 00:44:04,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 28 transitions, 204 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 00:44:04,394 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-03-26 00:44:04,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-03-26 00:44:04,395 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 12 predicate places. [2021-03-26 00:44:04,395 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:04,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-03-26 00:44:04,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-03-26 00:44:04,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:44:04,395 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:44:04,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:04,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:44:04,396 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:44:04,396 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:44:04,396 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:04,396 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:44:04,399 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:44:04,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:44:04,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:44:04,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:44:04 BasicIcfg [2021-03-26 00:44:04,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:44:04,403 INFO L168 Benchmark]: Toolchain (without parser) took 4802.82 ms. Allocated memory was 255.9 MB in the beginning and 406.8 MB in the end (delta: 151.0 MB). Free memory was 235.3 MB in the beginning and 352.6 MB in the end (delta: -117.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:04,403 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:44:04,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.70 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 235.3 MB in the beginning and 301.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:04,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.16 ms. Allocated memory is still 337.6 MB. Free memory was 301.0 MB in the beginning and 299.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:44:04,404 INFO L168 Benchmark]: Boogie Preprocessor took 30.79 ms. Allocated memory is still 337.6 MB. Free memory was 299.4 MB in the beginning and 298.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:04,404 INFO L168 Benchmark]: RCFGBuilder took 402.55 ms. Allocated memory is still 337.6 MB. Free memory was 298.1 MB in the beginning and 315.0 MB in the end (delta: -16.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:04,405 INFO L168 Benchmark]: TraceAbstraction took 3796.46 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 314.2 MB in the beginning and 352.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:04,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 512.70 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 235.3 MB in the beginning and 301.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.16 ms. Allocated memory is still 337.6 MB. Free memory was 301.0 MB in the beginning and 299.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.79 ms. Allocated memory is still 337.6 MB. Free memory was 299.4 MB in the beginning and 298.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 402.55 ms. Allocated memory is still 337.6 MB. Free memory was 298.1 MB in the beginning and 315.0 MB in the end (delta: -16.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3796.46 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 314.2 MB in the beginning and 352.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1587.4ms, 67 PlacesBefore, 30 PlacesAfterwards, 58 TransitionsBefore, 20 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 958 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 677, positive: 643, positive conditional: 643, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 553, positive: 532, positive conditional: 0, positive unconditional: 532, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 553, positive: 532, positive conditional: 0, positive unconditional: 532, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 553, positive: 527, positive conditional: 0, positive unconditional: 527, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 677, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 553, unknown conditional: 553, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 27, Positive conditional cache size: 27, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 347.5ms, 32 PlacesBefore, 29 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 56, positive conditional: 56, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 28, positive conditional: 9, positive unconditional: 19, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 28, positive conditional: 9, positive unconditional: 19, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 21, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 36, Positive conditional cache size: 36, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 435.7ms, 35 PlacesBefore, 34 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 8, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 8, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 166, positive: 133, positive conditional: 133, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 55, Positive conditional cache size: 55, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 40 PlacesBefore, 40 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 46 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 7, positive unconditional: 8, 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: 15, positive: 15, positive conditional: 7, positive unconditional: 8, 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: 15, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 21, positive conditional: 21, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 37 PlacesBefore, 37 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 40 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 9, 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: 14, positive: 14, positive conditional: 9, 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: 14, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 35, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 84, Positive conditional cache size: 84, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7ms, 39 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 126 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): 95, Positive cache size: 84, Positive conditional cache size: 84, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1ms, 40 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 116 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): 95, Positive cache size: 84, Positive conditional cache size: 84, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.4ms, 44 PlacesBefore, 43 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, 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: 6, positive: 6, positive conditional: 5, 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: 6, positive: 6, positive conditional: 5, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 73, Positive conditional cache size: 73, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 42 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 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): 79, Positive cache size: 73, Positive conditional cache size: 73, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3721.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 398.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1679.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 27 SDslu, 24 SDs, 0 SdLazy, 85 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=7, InterpolantAutomatonStates: 35, 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: 18.3ms SsaConstructionTime, 156.1ms SatisfiabilityAnalysisTime, 364.7ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 407 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...