/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/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:33:15,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:33:15,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:33:15,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:33:15,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:33:15,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:33:15,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:33:15,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:33:15,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:33:15,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:33:15,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:33:15,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:33:15,710 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:33:15,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:33:15,711 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:33:15,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:33:15,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:33:15,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:33:15,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:33:15,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:33:15,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:33:15,713 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:33:15,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:33:15,713 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:33:15,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:33:15,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:33:15,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:33:15,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:33:15,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:33:15,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:33:15,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:33:15,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:33:15,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:33:15,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:33:15,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:33:15,716 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:33:15,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:33:15,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:33:15,717 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:33:16,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:33:16,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:33:16,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:33:16,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:33:16,219 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:33:16,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-04-29 00:33:16,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8159957/c184bb782e7948919a4fe8ec43cce9a4/FLAG116d8c38f [2021-04-29 00:33:17,303 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:33:17,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-04-29 00:33:17,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8159957/c184bb782e7948919a4fe8ec43cce9a4/FLAG116d8c38f [2021-04-29 00:33:17,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8159957/c184bb782e7948919a4fe8ec43cce9a4 [2021-04-29 00:33:17,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:33:17,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:33:17,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:33:17,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:33:17,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:33:17,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:33:17" (1/1) ... [2021-04-29 00:33:17,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f338ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:17, skipping insertion in model container [2021-04-29 00:33:17,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:33:17" (1/1) ... [2021-04-29 00:33:17,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:33:17,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:33:17,856 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/safe027_tso.opt.i[949,962] [2021-04-29 00:33:18,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:33:18,071 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:33:18,087 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/safe027_tso.opt.i[949,962] [2021-04-29 00:33:18,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:33:18,288 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:33:18,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18 WrapperNode [2021-04-29 00:33:18,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:33:18,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:33:18,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:33:18,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:33:18,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:33:18,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:33:18,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:33:18,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:33:18,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... [2021-04-29 00:33:18,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:33:18,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:33:18,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:33:18,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:33:18,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:33:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:33:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:33:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:33:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:33:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:33:18,649 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:33:18,650 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:33:18,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:33:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:33:18,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:33:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:33:18,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:33:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:33:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:33:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:33:18,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:33:18,656 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:33:19,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:33:19,302 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:33:19,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:33:19 BoogieIcfgContainer [2021-04-29 00:33:19,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:33:19,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:33:19,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:33:19,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:33:19,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:33:17" (1/3) ... [2021-04-29 00:33:19,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f8bdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:33:19, skipping insertion in model container [2021-04-29 00:33:19,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:33:18" (2/3) ... [2021-04-29 00:33:19,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f8bdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:33:19, skipping insertion in model container [2021-04-29 00:33:19,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:33:19" (3/3) ... [2021-04-29 00:33:19,318 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2021-04-29 00:33:19,328 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:33:19,334 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:33:19,335 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:33:19,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,400 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,400 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,401 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,401 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,401 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,401 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,402 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,403 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,403 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,403 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,405 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,406 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,406 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,406 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,407 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,407 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,407 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,407 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,412 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,413 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,421 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,422 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,430 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,430 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:33:19,434 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:33:19,462 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:33:19,498 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:33:19,499 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:33:19,499 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:33:19,499 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:33:19,499 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:33:19,499 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:33:19,500 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:33:19,500 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:33:19,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-04-29 00:33:19,568 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-04-29 00:33:19,569 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:33:19,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-04-29 00:33:19,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-04-29 00:33:19,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-04-29 00:33:19,584 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:19,609 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-04-29 00:33:19,615 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-04-29 00:33:19,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-04-29 00:33:19,642 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-04-29 00:33:19,642 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:33:19,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-04-29 00:33:19,648 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-29 00:33:25,184 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:33:25,357 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:33:25,662 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:33:25,835 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:33:26,017 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:33:26,193 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:33:26,351 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:33:26,669 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:33:26,916 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:33:27,233 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:33:27,427 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:33:27,617 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:33:27,817 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:33:27,995 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:33:28,184 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:33:28,543 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-29 00:33:28,664 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 00:33:28,929 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-29 00:33:29,033 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 00:33:30,141 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-29 00:33:30,245 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-29 00:33:30,503 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-29 00:33:30,611 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-29 00:33:32,230 INFO L158 LiptonReduction]: Checked pairs total: 8994 [2021-04-29 00:33:32,231 INFO L160 LiptonReduction]: Total number of compositions: 102 [2021-04-29 00:33:32,240 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12658 [2021-04-29 00:33:32,294 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-04-29 00:33:32,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:33:32,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:32,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:32,296 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:32,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:32,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2132360900, now seen corresponding path program 1 times [2021-04-29 00:33:32,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:32,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602397621] [2021-04-29 00:33:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:32,786 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:33:32,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:33:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:32,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602397621] [2021-04-29 00:33:32,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:32,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:33:32,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329802317] [2021-04-29 00:33:32,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:33:32,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:32,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:33:32,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:33:32,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2021-04-29 00:33:32,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:32,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:32,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2021-04-29 00:33:32,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:33,026 INFO L129 PetriNetUnfolder]: 84/314 cut-off events. [2021-04-29 00:33:33,027 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:33:33,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 314 events. 84/314 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2118 event pairs, 58 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 445. Up to 149 conditions per place. [2021-04-29 00:33:33,031 INFO L132 encePairwiseOnDemand]: 170/189 looper letters, 5 selfloop transitions, 3 changer transitions 41/86 dead transitions. [2021-04-29 00:33:33,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 250 flow [2021-04-29 00:33:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:33:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:33:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-04-29 00:33:33,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7918871252204586 [2021-04-29 00:33:33,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-04-29 00:33:33,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-04-29 00:33:33,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:33,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-04-29 00:33:33,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,074 INFO L185 Difference]: Start difference. First operand has 92 places, 79 transitions, 170 flow. Second operand 3 states and 449 transitions. [2021-04-29 00:33:33,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 250 flow [2021-04-29 00:33:33,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 86 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:33:33,081 INFO L241 Difference]: Finished difference. Result has 91 places, 45 transitions, 113 flow [2021-04-29 00:33:33,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=91, PETRI_TRANSITIONS=45} [2021-04-29 00:33:33,084 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -1 predicate places. [2021-04-29 00:33:33,085 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:33,085 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 45 transitions, 113 flow [2021-04-29 00:33:33,085 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 45 transitions, 113 flow [2021-04-29 00:33:33,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 45 transitions, 113 flow [2021-04-29 00:33:33,094 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-29 00:33:33,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:33:33,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 212 event pairs, 1 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 72. Up to 10 conditions per place. [2021-04-29 00:33:33,096 INFO L146 LiptonReduction]: Number of co-enabled transitions 1140 [2021-04-29 00:33:33,128 INFO L158 LiptonReduction]: Checked pairs total: 816 [2021-04-29 00:33:33,128 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:33,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 00:33:33,131 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 113 flow [2021-04-29 00:33:33,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,131 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:33,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:33,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:33:33,132 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash 98632856, now seen corresponding path program 1 times [2021-04-29 00:33:33,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:33,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39910889] [2021-04-29 00:33:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:33,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,212 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:33:33,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:33:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:33,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39910889] [2021-04-29 00:33:33,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:33,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:33:33,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625225727] [2021-04-29 00:33:33,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:33:33,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:33,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:33:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:33:33,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 189 [2021-04-29 00:33:33,231 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:33,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 189 [2021-04-29 00:33:33,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:33,296 INFO L129 PetriNetUnfolder]: 50/200 cut-off events. [2021-04-29 00:33:33,297 INFO L130 PetriNetUnfolder]: For 35/95 co-relation queries the response was YES. [2021-04-29 00:33:33,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 200 events. 50/200 cut-off events. For 35/95 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1127 event pairs, 4 based on Foata normal form. 6/128 useless extension candidates. Maximal degree in co-relation 334. Up to 53 conditions per place. [2021-04-29 00:33:33,300 INFO L132 encePairwiseOnDemand]: 182/189 looper letters, 10 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2021-04-29 00:33:33,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 203 flow [2021-04-29 00:33:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:33:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:33:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 663 transitions. [2021-04-29 00:33:33,306 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7015873015873015 [2021-04-29 00:33:33,306 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 663 transitions. [2021-04-29 00:33:33,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 663 transitions. [2021-04-29 00:33:33,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:33,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 663 transitions. [2021-04-29 00:33:33,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,314 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,314 INFO L185 Difference]: Start difference. First operand has 55 places, 45 transitions, 113 flow. Second operand 5 states and 663 transitions. [2021-04-29 00:33:33,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 203 flow [2021-04-29 00:33:33,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:33:33,318 INFO L241 Difference]: Finished difference. Result has 61 places, 55 transitions, 205 flow [2021-04-29 00:33:33,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2021-04-29 00:33:33,319 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -31 predicate places. [2021-04-29 00:33:33,319 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:33,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 205 flow [2021-04-29 00:33:33,320 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 205 flow [2021-04-29 00:33:33,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 55 transitions, 205 flow [2021-04-29 00:33:33,342 INFO L129 PetriNetUnfolder]: 41/176 cut-off events. [2021-04-29 00:33:33,343 INFO L130 PetriNetUnfolder]: For 84/111 co-relation queries the response was YES. [2021-04-29 00:33:33,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 176 events. 41/176 cut-off events. For 84/111 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1012 event pairs, 11 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 367. Up to 56 conditions per place. [2021-04-29 00:33:33,350 INFO L146 LiptonReduction]: Number of co-enabled transitions 1510 [2021-04-29 00:33:33,365 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-29 00:33:33,365 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:33,365 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-29 00:33:33,367 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 205 flow [2021-04-29 00:33:33,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,368 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:33,368 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:33,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:33:33,368 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:33,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:33,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1650737977, now seen corresponding path program 1 times [2021-04-29 00:33:33,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:33,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492777632] [2021-04-29 00:33:33,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:33,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,437 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:33:33,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:33:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:33,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492777632] [2021-04-29 00:33:33,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:33,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:33:33,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386261385] [2021-04-29 00:33:33,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:33:33,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:33,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:33:33,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:33:33,453 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2021-04-29 00:33:33,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 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) [2021-04-29 00:33:33,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:33,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2021-04-29 00:33:33,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:33,489 INFO L129 PetriNetUnfolder]: 24/144 cut-off events. [2021-04-29 00:33:33,490 INFO L130 PetriNetUnfolder]: For 104/207 co-relation queries the response was YES. [2021-04-29 00:33:33,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 144 events. 24/144 cut-off events. For 104/207 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 762 event pairs, 5 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 330. Up to 47 conditions per place. [2021-04-29 00:33:33,492 INFO L132 encePairwiseOnDemand]: 186/189 looper letters, 13 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2021-04-29 00:33:33,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 247 flow [2021-04-29 00:33:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:33:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:33:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2021-04-29 00:33:33,495 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2021-04-29 00:33:33,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2021-04-29 00:33:33,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2021-04-29 00:33:33,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:33,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2021-04-29 00:33:33,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,500 INFO L185 Difference]: Start difference. First operand has 61 places, 55 transitions, 205 flow. Second operand 3 states and 423 transitions. [2021-04-29 00:33:33,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 247 flow [2021-04-29 00:33:33,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:33:33,504 INFO L241 Difference]: Finished difference. Result has 63 places, 55 transitions, 215 flow [2021-04-29 00:33:33,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2021-04-29 00:33:33,504 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -29 predicate places. [2021-04-29 00:33:33,505 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:33,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 55 transitions, 215 flow [2021-04-29 00:33:33,505 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 55 transitions, 215 flow [2021-04-29 00:33:33,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 55 transitions, 215 flow [2021-04-29 00:33:33,524 INFO L129 PetriNetUnfolder]: 30/144 cut-off events. [2021-04-29 00:33:33,524 INFO L130 PetriNetUnfolder]: For 88/105 co-relation queries the response was YES. [2021-04-29 00:33:33,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 144 events. 30/144 cut-off events. For 88/105 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 762 event pairs, 7 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 305. Up to 47 conditions per place. [2021-04-29 00:33:33,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 1508 [2021-04-29 00:33:33,544 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-29 00:33:33,544 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:33,545 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-04-29 00:33:33,546 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 215 flow [2021-04-29 00:33:33,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 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) [2021-04-29 00:33:33,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:33,547 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:33,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:33:33,548 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1237351640, now seen corresponding path program 1 times [2021-04-29 00:33:33,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:33,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737686237] [2021-04-29 00:33:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:33,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,624 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:33:33,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:33:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:33,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737686237] [2021-04-29 00:33:33,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:33,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:33:33,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956941381] [2021-04-29 00:33:33,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:33:33,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:33,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:33:33,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:33:33,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 189 [2021-04-29 00:33:33,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:33,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 189 [2021-04-29 00:33:33,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:33,716 INFO L129 PetriNetUnfolder]: 28/143 cut-off events. [2021-04-29 00:33:33,716 INFO L130 PetriNetUnfolder]: For 205/308 co-relation queries the response was YES. [2021-04-29 00:33:33,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 143 events. 28/143 cut-off events. For 205/308 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 764 event pairs, 3 based on Foata normal form. 7/97 useless extension candidates. Maximal degree in co-relation 353. Up to 43 conditions per place. [2021-04-29 00:33:33,718 INFO L132 encePairwiseOnDemand]: 185/189 looper letters, 8 selfloop transitions, 5 changer transitions 15/61 dead transitions. [2021-04-29 00:33:33,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 61 transitions, 305 flow [2021-04-29 00:33:33,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:33:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:33:33,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 528 transitions. [2021-04-29 00:33:33,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2021-04-29 00:33:33,721 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 528 transitions. [2021-04-29 00:33:33,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 528 transitions. [2021-04-29 00:33:33,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:33,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 528 transitions. [2021-04-29 00:33:33,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,726 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,727 INFO L185 Difference]: Start difference. First operand has 63 places, 55 transitions, 215 flow. Second operand 4 states and 528 transitions. [2021-04-29 00:33:33,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 61 transitions, 305 flow [2021-04-29 00:33:33,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:33:33,731 INFO L241 Difference]: Finished difference. Result has 66 places, 44 transitions, 170 flow [2021-04-29 00:33:33,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=66, PETRI_TRANSITIONS=44} [2021-04-29 00:33:33,731 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -26 predicate places. [2021-04-29 00:33:33,731 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:33,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 44 transitions, 170 flow [2021-04-29 00:33:33,732 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 44 transitions, 170 flow [2021-04-29 00:33:33,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 44 transitions, 170 flow [2021-04-29 00:33:33,743 INFO L129 PetriNetUnfolder]: 11/81 cut-off events. [2021-04-29 00:33:33,744 INFO L130 PetriNetUnfolder]: For 67/72 co-relation queries the response was YES. [2021-04-29 00:33:33,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 81 events. 11/81 cut-off events. For 67/72 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 299 event pairs, 6 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 175. Up to 23 conditions per place. [2021-04-29 00:33:33,746 INFO L146 LiptonReduction]: Number of co-enabled transitions 972 [2021-04-29 00:33:33,757 INFO L158 LiptonReduction]: Checked pairs total: 235 [2021-04-29 00:33:33,757 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:33,757 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-29 00:33:33,759 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 170 flow [2021-04-29 00:33:33,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:33,760 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:33,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:33:33,761 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:33,761 INFO L82 PathProgramCache]: Analyzing trace with hash 498438446, now seen corresponding path program 1 times [2021-04-29 00:33:33,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:33,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456272964] [2021-04-29 00:33:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:33,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,804 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:33:33,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:33:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:33,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456272964] [2021-04-29 00:33:33,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:33,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:33:33,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020426139] [2021-04-29 00:33:33,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:33:33,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:33,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:33:33,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:33:33,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2021-04-29 00:33:33,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 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) [2021-04-29 00:33:33,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:33,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2021-04-29 00:33:33,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:33,844 INFO L129 PetriNetUnfolder]: 9/69 cut-off events. [2021-04-29 00:33:33,845 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-04-29 00:33:33,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 69 events. 9/69 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 234 event pairs, 6 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 171. Up to 20 conditions per place. [2021-04-29 00:33:33,846 INFO L132 encePairwiseOnDemand]: 186/189 looper letters, 6 selfloop transitions, 4 changer transitions 1/45 dead transitions. [2021-04-29 00:33:33,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 45 transitions, 196 flow [2021-04-29 00:33:33,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:33:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:33:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2021-04-29 00:33:33,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2021-04-29 00:33:33,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2021-04-29 00:33:33,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2021-04-29 00:33:33,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:33,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2021-04-29 00:33:33,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,853 INFO L185 Difference]: Start difference. First operand has 63 places, 44 transitions, 170 flow. Second operand 3 states and 423 transitions. [2021-04-29 00:33:33,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 45 transitions, 196 flow [2021-04-29 00:33:33,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 45 transitions, 171 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:33:33,856 INFO L241 Difference]: Finished difference. Result has 60 places, 43 transitions, 157 flow [2021-04-29 00:33:33,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2021-04-29 00:33:33,857 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -32 predicate places. [2021-04-29 00:33:33,857 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:33,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 43 transitions, 157 flow [2021-04-29 00:33:33,858 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 43 transitions, 157 flow [2021-04-29 00:33:33,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 43 transitions, 157 flow [2021-04-29 00:33:33,866 INFO L129 PetriNetUnfolder]: 8/66 cut-off events. [2021-04-29 00:33:33,867 INFO L130 PetriNetUnfolder]: For 38/43 co-relation queries the response was YES. [2021-04-29 00:33:33,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 66 events. 8/66 cut-off events. For 38/43 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 224 event pairs, 5 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 136. Up to 18 conditions per place. [2021-04-29 00:33:33,869 INFO L146 LiptonReduction]: Number of co-enabled transitions 916 [2021-04-29 00:33:33,881 INFO L158 LiptonReduction]: Checked pairs total: 228 [2021-04-29 00:33:33,881 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:33,882 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:33:33,883 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 157 flow [2021-04-29 00:33:33,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 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) [2021-04-29 00:33:33,884 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:33,884 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:33,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:33:33,885 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:33,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:33,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1515277411, now seen corresponding path program 1 times [2021-04-29 00:33:33,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:33,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183502935] [2021-04-29 00:33:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:33,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:33,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:33,929 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:33:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:33:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:33,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183502935] [2021-04-29 00:33:33,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:33,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:33:33,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578368128] [2021-04-29 00:33:33,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:33:33,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:33,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:33:33,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:33:33,945 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 189 [2021-04-29 00:33:33,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:33,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:33,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 189 [2021-04-29 00:33:33,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:33,992 INFO L129 PetriNetUnfolder]: 23/142 cut-off events. [2021-04-29 00:33:33,992 INFO L130 PetriNetUnfolder]: For 193/194 co-relation queries the response was YES. [2021-04-29 00:33:33,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 142 events. 23/142 cut-off events. For 193/194 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 734 event pairs, 8 based on Foata normal form. 8/91 useless extension candidates. Maximal degree in co-relation 319. Up to 34 conditions per place. [2021-04-29 00:33:33,994 INFO L132 encePairwiseOnDemand]: 185/189 looper letters, 8 selfloop transitions, 5 changer transitions 8/53 dead transitions. [2021-04-29 00:33:33,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 53 transitions, 268 flow [2021-04-29 00:33:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:33:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:33:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2021-04-29 00:33:33,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6931216931216931 [2021-04-29 00:33:33,997 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2021-04-29 00:33:33,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2021-04-29 00:33:33,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:33,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2021-04-29 00:33:33,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:34,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:34,002 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:34,002 INFO L185 Difference]: Start difference. First operand has 59 places, 43 transitions, 157 flow. Second operand 4 states and 524 transitions. [2021-04-29 00:33:34,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 53 transitions, 268 flow [2021-04-29 00:33:34,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:33:34,005 INFO L241 Difference]: Finished difference. Result has 62 places, 42 transitions, 167 flow [2021-04-29 00:33:34,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2021-04-29 00:33:34,006 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -30 predicate places. [2021-04-29 00:33:34,006 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:34,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 42 transitions, 167 flow [2021-04-29 00:33:34,006 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 42 transitions, 167 flow [2021-04-29 00:33:34,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 42 transitions, 167 flow [2021-04-29 00:33:34,016 INFO L129 PetriNetUnfolder]: 8/72 cut-off events. [2021-04-29 00:33:34,016 INFO L130 PetriNetUnfolder]: For 72/73 co-relation queries the response was YES. [2021-04-29 00:33:34,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 72 events. 8/72 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 273 event pairs, 5 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 158. Up to 19 conditions per place. [2021-04-29 00:33:34,018 INFO L146 LiptonReduction]: Number of co-enabled transitions 828 [2021-04-29 00:33:34,025 INFO L158 LiptonReduction]: Checked pairs total: 23 [2021-04-29 00:33:34,025 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:34,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-04-29 00:33:34,027 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 167 flow [2021-04-29 00:33:34,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:34,028 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:34,028 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:34,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:33:34,028 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:34,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:34,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2049059060, now seen corresponding path program 1 times [2021-04-29 00:33:34,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:34,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23152285] [2021-04-29 00:33:34,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:34,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:34,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:34,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:34,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:33:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:34,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23152285] [2021-04-29 00:33:34,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:34,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:33:34,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934857482] [2021-04-29 00:33:34,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:33:34,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:34,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:33:34,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:33:34,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:33:34,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:34,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:34,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:33:34,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:36,644 INFO L129 PetriNetUnfolder]: 13225/18731 cut-off events. [2021-04-29 00:33:36,644 INFO L130 PetriNetUnfolder]: For 23476/28049 co-relation queries the response was YES. [2021-04-29 00:33:36,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40385 conditions, 18731 events. 13225/18731 cut-off events. For 23476/28049 co-relation queries the response was YES. Maximal size of possible extension queue 2511. Compared 137368 event pairs, 7402 based on Foata normal form. 315/5707 useless extension candidates. Maximal degree in co-relation 40368. Up to 12052 conditions per place. [2021-04-29 00:33:36,830 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 33 selfloop transitions, 32 changer transitions 0/85 dead transitions. [2021-04-29 00:33:36,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 383 flow [2021-04-29 00:33:36,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:33:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:33:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 681 transitions. [2021-04-29 00:33:36,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7206349206349206 [2021-04-29 00:33:36,834 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 681 transitions. [2021-04-29 00:33:36,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 681 transitions. [2021-04-29 00:33:36,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:36,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 681 transitions. [2021-04-29 00:33:36,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:36,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:36,840 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:36,840 INFO L185 Difference]: Start difference. First operand has 61 places, 42 transitions, 167 flow. Second operand 5 states and 681 transitions. [2021-04-29 00:33:36,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 383 flow [2021-04-29 00:33:36,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 367 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:33:36,855 INFO L241 Difference]: Finished difference. Result has 64 places, 72 transitions, 389 flow [2021-04-29 00:33:36,855 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2021-04-29 00:33:36,855 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -28 predicate places. [2021-04-29 00:33:36,856 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:36,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 72 transitions, 389 flow [2021-04-29 00:33:36,856 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 72 transitions, 389 flow [2021-04-29 00:33:36,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 72 transitions, 389 flow [2021-04-29 00:33:38,598 INFO L129 PetriNetUnfolder]: 11307/16289 cut-off events. [2021-04-29 00:33:38,598 INFO L130 PetriNetUnfolder]: For 11681/50513 co-relation queries the response was YES. [2021-04-29 00:33:38,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48651 conditions, 16289 events. 11307/16289 cut-off events. For 11681/50513 co-relation queries the response was YES. Maximal size of possible extension queue 2275. Compared 121968 event pairs, 6877 based on Foata normal form. 5/4790 useless extension candidates. Maximal degree in co-relation 48635. Up to 15592 conditions per place. [2021-04-29 00:33:39,036 INFO L146 LiptonReduction]: Number of co-enabled transitions 1068 [2021-04-29 00:33:39,284 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:33:39,285 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:39,285 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2429 [2021-04-29 00:33:39,288 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 389 flow [2021-04-29 00:33:39,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:39,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:39,290 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:39,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:33:39,290 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:39,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:39,291 INFO L82 PathProgramCache]: Analyzing trace with hash -212838586, now seen corresponding path program 1 times [2021-04-29 00:33:39,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:39,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569758805] [2021-04-29 00:33:39,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:39,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:39,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:39,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:39,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:39,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:39,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:33:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:39,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569758805] [2021-04-29 00:33:39,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:39,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:33:39,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22503434] [2021-04-29 00:33:39,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:33:39,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:39,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:33:39,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:33:39,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:33:39,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 389 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:39,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:39,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:33:39,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:41,781 INFO L129 PetriNetUnfolder]: 15103/22262 cut-off events. [2021-04-29 00:33:41,781 INFO L130 PetriNetUnfolder]: For 24254/131629 co-relation queries the response was YES. [2021-04-29 00:33:41,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87456 conditions, 22262 events. 15103/22262 cut-off events. For 24254/131629 co-relation queries the response was YES. Maximal size of possible extension queue 3261. Compared 172717 event pairs, 3448 based on Foata normal form. 369/7692 useless extension candidates. Maximal degree in co-relation 87438. Up to 20899 conditions per place. [2021-04-29 00:33:41,955 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 34 selfloop transitions, 62 changer transitions 0/116 dead transitions. [2021-04-29 00:33:41,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 116 transitions, 826 flow [2021-04-29 00:33:41,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:33:41,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:33:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 957 transitions. [2021-04-29 00:33:41,960 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7233560090702947 [2021-04-29 00:33:41,961 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 957 transitions. [2021-04-29 00:33:41,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 957 transitions. [2021-04-29 00:33:41,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:41,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 957 transitions. [2021-04-29 00:33:41,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 136.71428571428572) internal successors, (957), 7 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:41,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:41,969 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:41,969 INFO L185 Difference]: Start difference. First operand has 64 places, 72 transitions, 389 flow. Second operand 7 states and 957 transitions. [2021-04-29 00:33:41,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 116 transitions, 826 flow [2021-04-29 00:33:42,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 116 transitions, 826 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:33:42,007 INFO L241 Difference]: Finished difference. Result has 73 places, 102 transitions, 819 flow [2021-04-29 00:33:42,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=819, PETRI_PLACES=73, PETRI_TRANSITIONS=102} [2021-04-29 00:33:42,007 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2021-04-29 00:33:42,008 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:42,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 102 transitions, 819 flow [2021-04-29 00:33:42,008 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 102 transitions, 819 flow [2021-04-29 00:33:42,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 102 transitions, 819 flow [2021-04-29 00:33:44,077 INFO L129 PetriNetUnfolder]: 13256/19810 cut-off events. [2021-04-29 00:33:44,078 INFO L130 PetriNetUnfolder]: For 43453/271700 co-relation queries the response was YES. [2021-04-29 00:33:44,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95999 conditions, 19810 events. 13256/19810 cut-off events. For 43453/271700 co-relation queries the response was YES. Maximal size of possible extension queue 3028. Compared 162111 event pairs, 3249 based on Foata normal form. 6/5975 useless extension candidates. Maximal degree in co-relation 95978. Up to 19066 conditions per place. [2021-04-29 00:33:44,367 INFO L146 LiptonReduction]: Number of co-enabled transitions 1472 [2021-04-29 00:33:44,486 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:33:44,486 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:44,486 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2478 [2021-04-29 00:33:44,488 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 102 transitions, 819 flow [2021-04-29 00:33:44,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:44,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:44,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:44,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:33:44,489 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:44,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:44,490 INFO L82 PathProgramCache]: Analyzing trace with hash 39364471, now seen corresponding path program 1 times [2021-04-29 00:33:44,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:44,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133015619] [2021-04-29 00:33:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:44,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:44,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:44,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:44,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:44,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:44,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:44,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:44,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:33:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:44,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133015619] [2021-04-29 00:33:44,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:44,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:33:44,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662203884] [2021-04-29 00:33:44,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:33:44,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:44,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:33:44,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:33:44,566 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:33:44,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 102 transitions, 819 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:44,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:44,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:33:44,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:47,121 INFO L129 PetriNetUnfolder]: 14545/22703 cut-off events. [2021-04-29 00:33:47,121 INFO L130 PetriNetUnfolder]: For 42961/379047 co-relation queries the response was YES. [2021-04-29 00:33:47,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130862 conditions, 22703 events. 14545/22703 cut-off events. For 42961/379047 co-relation queries the response was YES. Maximal size of possible extension queue 3888. Compared 192326 event pairs, 622 based on Foata normal form. 402/7832 useless extension candidates. Maximal degree in co-relation 130839. Up to 21529 conditions per place. [2021-04-29 00:33:47,281 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 23 selfloop transitions, 92 changer transitions 12/147 dead transitions. [2021-04-29 00:33:47,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 147 transitions, 1477 flow [2021-04-29 00:33:47,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:33:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:33:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1233 transitions. [2021-04-29 00:33:47,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7248677248677249 [2021-04-29 00:33:47,287 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1233 transitions. [2021-04-29 00:33:47,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1233 transitions. [2021-04-29 00:33:47,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:47,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1233 transitions. [2021-04-29 00:33:47,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.0) internal successors, (1233), 9 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:47,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:47,297 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:47,297 INFO L185 Difference]: Start difference. First operand has 73 places, 102 transitions, 819 flow. Second operand 9 states and 1233 transitions. [2021-04-29 00:33:47,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 147 transitions, 1477 flow [2021-04-29 00:33:47,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 147 transitions, 1318 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-04-29 00:33:47,640 INFO L241 Difference]: Finished difference. Result has 81 places, 132 transitions, 1235 flow [2021-04-29 00:33:47,641 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1235, PETRI_PLACES=81, PETRI_TRANSITIONS=132} [2021-04-29 00:33:47,641 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -11 predicate places. [2021-04-29 00:33:47,641 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:33:47,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 132 transitions, 1235 flow [2021-04-29 00:33:47,642 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 132 transitions, 1235 flow [2021-04-29 00:33:47,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 132 transitions, 1235 flow [2021-04-29 00:33:49,410 INFO L129 PetriNetUnfolder]: 9547/16128 cut-off events. [2021-04-29 00:33:49,411 INFO L130 PetriNetUnfolder]: For 157576/304275 co-relation queries the response was YES. [2021-04-29 00:33:49,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97097 conditions, 16128 events. 9547/16128 cut-off events. For 157576/304275 co-relation queries the response was YES. Maximal size of possible extension queue 2943. Compared 158407 event pairs, 622 based on Foata normal form. 5/4864 useless extension candidates. Maximal degree in co-relation 97073. Up to 13276 conditions per place. [2021-04-29 00:33:49,676 INFO L146 LiptonReduction]: Number of co-enabled transitions 1662 [2021-04-29 00:33:49,711 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:33:49,712 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:33:49,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2071 [2021-04-29 00:33:49,713 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 132 transitions, 1235 flow [2021-04-29 00:33:49,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:49,714 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:33:49,714 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:33:49,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:33:49,715 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:33:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:33:49,715 INFO L82 PathProgramCache]: Analyzing trace with hash 424236118, now seen corresponding path program 1 times [2021-04-29 00:33:49,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:33:49,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484214999] [2021-04-29 00:33:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:33:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:33:49,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:49,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:49,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:49,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:49,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:49,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:49,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:49,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:33:49,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:33:49,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:33:49,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:33:49,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484214999] [2021-04-29 00:33:49,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:33:49,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 00:33:49,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189719827] [2021-04-29 00:33:49,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 00:33:49,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:33:49,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 00:33:49,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-29 00:33:49,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:33:49,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 132 transitions, 1235 flow. Second operand has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:49,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:33:49,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:33:49,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:33:52,264 INFO L129 PetriNetUnfolder]: 9469/16493 cut-off events. [2021-04-29 00:33:52,264 INFO L130 PetriNetUnfolder]: For 62303/231559 co-relation queries the response was YES. [2021-04-29 00:33:52,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113507 conditions, 16493 events. 9469/16493 cut-off events. For 62303/231559 co-relation queries the response was YES. Maximal size of possible extension queue 2973. Compared 158680 event pairs, 1 based on Foata normal form. 327/5624 useless extension candidates. Maximal degree in co-relation 113481. Up to 13330 conditions per place. [2021-04-29 00:33:52,400 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 6 selfloop transitions, 109 changer transitions 19/154 dead transitions. [2021-04-29 00:33:52,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 154 transitions, 1705 flow [2021-04-29 00:33:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 00:33:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 00:33:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1485 transitions. [2021-04-29 00:33:52,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-04-29 00:33:52,408 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1485 transitions. [2021-04-29 00:33:52,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1485 transitions. [2021-04-29 00:33:52,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:33:52,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1485 transitions. [2021-04-29 00:33:52,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:52,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 189.0) internal successors, (2268), 12 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:52,419 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 189.0) internal successors, (2268), 12 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:33:52,420 INFO L185 Difference]: Start difference. First operand has 81 places, 132 transitions, 1235 flow. Second operand 11 states and 1485 transitions. [2021-04-29 00:33:52,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 154 transitions, 1705 flow [2021-04-29 00:34:00,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 154 transitions, 1380 flow, removed 106 selfloop flow, removed 5 redundant places. [2021-04-29 00:34:00,137 INFO L241 Difference]: Finished difference. Result has 89 places, 132 transitions, 1183 flow [2021-04-29 00:34:00,138 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1183, PETRI_PLACES=89, PETRI_TRANSITIONS=132} [2021-04-29 00:34:00,138 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2021-04-29 00:34:00,138 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:34:00,138 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 132 transitions, 1183 flow [2021-04-29 00:34:00,138 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 132 transitions, 1183 flow [2021-04-29 00:34:00,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 132 transitions, 1183 flow [2021-04-29 00:34:01,108 INFO L129 PetriNetUnfolder]: 7225/12996 cut-off events. [2021-04-29 00:34:01,109 INFO L130 PetriNetUnfolder]: For 119709/168919 co-relation queries the response was YES. [2021-04-29 00:34:01,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58625 conditions, 12996 events. 7225/12996 cut-off events. For 119709/168919 co-relation queries the response was YES. Maximal size of possible extension queue 2838. Compared 133838 event pairs, 1 based on Foata normal form. 5/3858 useless extension candidates. Maximal degree in co-relation 58598. Up to 8748 conditions per place. [2021-04-29 00:34:01,302 INFO L146 LiptonReduction]: Number of co-enabled transitions 1652 [2021-04-29 00:34:01,346 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:34:01,346 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:34:01,346 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1208 [2021-04-29 00:34:01,347 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 132 transitions, 1183 flow [2021-04-29 00:34:01,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:01,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:34:01,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:34:01,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:34:01,349 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:34:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:34:01,349 INFO L82 PathProgramCache]: Analyzing trace with hash -67449975, now seen corresponding path program 1 times [2021-04-29 00:34:01,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:34:01,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124915387] [2021-04-29 00:34:01,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:34:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:34:01,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:34:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:34:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:34:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:34:01,396 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:34:01,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:34:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:34:01,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124915387] [2021-04-29 00:34:01,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:34:01,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:34:01,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674741487] [2021-04-29 00:34:01,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:34:01,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:34:01,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:34:01,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:34:01,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 189 [2021-04-29 00:34:01,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 132 transitions, 1183 flow. Second operand has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:01,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:34:01,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 189 [2021-04-29 00:34:01,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:34:03,753 INFO L129 PetriNetUnfolder]: 13142/23417 cut-off events. [2021-04-29 00:34:03,753 INFO L130 PetriNetUnfolder]: For 169005/232739 co-relation queries the response was YES. [2021-04-29 00:34:03,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105214 conditions, 23417 events. 13142/23417 cut-off events. For 169005/232739 co-relation queries the response was YES. Maximal size of possible extension queue 5970. Compared 248202 event pairs, 0 based on Foata normal form. 90/7091 useless extension candidates. Maximal degree in co-relation 105185. Up to 16038 conditions per place. [2021-04-29 00:34:03,923 INFO L132 encePairwiseOnDemand]: 182/189 looper letters, 5 selfloop transitions, 9 changer transitions 0/135 dead transitions. [2021-04-29 00:34:03,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 135 transitions, 1229 flow [2021-04-29 00:34:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:34:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:34:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2021-04-29 00:34:03,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.692063492063492 [2021-04-29 00:34:03,925 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2021-04-29 00:34:03,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2021-04-29 00:34:03,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:34:03,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2021-04-29 00:34:03,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:03,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:03,933 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:03,933 INFO L185 Difference]: Start difference. First operand has 87 places, 132 transitions, 1183 flow. Second operand 5 states and 654 transitions. [2021-04-29 00:34:03,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 135 transitions, 1229 flow [2021-04-29 00:34:35,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 135 transitions, 878 flow, removed 77 selfloop flow, removed 10 redundant places. [2021-04-29 00:34:35,938 INFO L241 Difference]: Finished difference. Result has 83 places, 135 transitions, 888 flow [2021-04-29 00:34:35,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=888, PETRI_PLACES=83, PETRI_TRANSITIONS=135} [2021-04-29 00:34:35,939 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -9 predicate places. [2021-04-29 00:34:35,939 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:34:35,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 135 transitions, 888 flow [2021-04-29 00:34:35,939 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 135 transitions, 888 flow [2021-04-29 00:34:35,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 135 transitions, 888 flow [2021-04-29 00:34:37,489 INFO L129 PetriNetUnfolder]: 13022/23108 cut-off events. [2021-04-29 00:34:37,489 INFO L130 PetriNetUnfolder]: For 21578/25242 co-relation queries the response was YES. [2021-04-29 00:34:37,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89091 conditions, 23108 events. 13022/23108 cut-off events. For 21578/25242 co-relation queries the response was YES. Maximal size of possible extension queue 5985. Compared 254573 event pairs, 0 based on Foata normal form. 5/6769 useless extension candidates. Maximal degree in co-relation 89065. Up to 16038 conditions per place. [2021-04-29 00:34:37,851 INFO L146 LiptonReduction]: Number of co-enabled transitions 2016 [2021-04-29 00:34:37,885 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:34:37,886 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:34:37,886 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1947 [2021-04-29 00:34:37,887 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 135 transitions, 888 flow [2021-04-29 00:34:37,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:37,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:34:37,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:34:37,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:34:37,888 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:34:37,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:34:37,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1340731365, now seen corresponding path program 1 times [2021-04-29 00:34:37,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:34:37,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15923802] [2021-04-29 00:34:37,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:34:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:34:37,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:34:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:34:37,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:34:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:34:37,970 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:34:37,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:34:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:34:37,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15923802] [2021-04-29 00:34:37,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:34:37,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:34:37,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079238806] [2021-04-29 00:34:37,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:34:37,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:34:37,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:34:37,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:34:37,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 189 [2021-04-29 00:34:37,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 135 transitions, 888 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:37,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:34:37,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 189 [2021-04-29 00:34:37,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:34:39,929 INFO L129 PetriNetUnfolder]: 14446/25769 cut-off events. [2021-04-29 00:34:39,930 INFO L130 PetriNetUnfolder]: For 24626/27594 co-relation queries the response was YES. [2021-04-29 00:34:40,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98599 conditions, 25769 events. 14446/25769 cut-off events. For 24626/27594 co-relation queries the response was YES. Maximal size of possible extension queue 6861. Compared 277497 event pairs, 0 based on Foata normal form. 89/7685 useless extension candidates. Maximal degree in co-relation 98571. Up to 17496 conditions per place. [2021-04-29 00:34:40,091 INFO L132 encePairwiseOnDemand]: 182/189 looper letters, 0 selfloop transitions, 0 changer transitions 139/139 dead transitions. [2021-04-29 00:34:40,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 139 transitions, 938 flow [2021-04-29 00:34:40,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:34:40,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:34:40,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 648 transitions. [2021-04-29 00:34:40,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2021-04-29 00:34:40,095 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 648 transitions. [2021-04-29 00:34:40,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 648 transitions. [2021-04-29 00:34:40,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:34:40,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 648 transitions. [2021-04-29 00:34:40,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:40,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:40,101 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:40,101 INFO L185 Difference]: Start difference. First operand has 83 places, 135 transitions, 888 flow. Second operand 5 states and 648 transitions. [2021-04-29 00:34:40,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 139 transitions, 938 flow [2021-04-29 00:35:01,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 139 transitions, 795 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-04-29 00:35:01,853 INFO L241 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2021-04-29 00:35:01,853 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2021-04-29 00:35:01,854 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2021-04-29 00:35:01,854 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:01,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 0 transitions, 0 flow [2021-04-29 00:35:01,854 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 0 transitions, 0 flow [2021-04-29 00:35:01,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:35:01,854 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:35:01,854 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:01,854 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. [2021-04-29 00:35:01,855 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:35:01,855 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:35:01,855 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:01,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-29 00:35:01,856 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:35:01,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:01,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 00:35:01,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:35:01 BasicIcfg [2021-04-29 00:35:01,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:35:01,863 INFO L168 Benchmark]: Toolchain (without parser) took 104339.64 ms. Allocated memory was 304.1 MB in the beginning and 11.0 GB in the end (delta: 10.7 GB). Free memory was 277.4 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-04-29 00:35:01,863 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 304.1 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:35:01,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.81 ms. Allocated memory is still 304.1 MB. Free memory was 274.2 MB in the beginning and 272.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:01,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.36 ms. Allocated memory is still 304.1 MB. Free memory was 272.3 MB in the beginning and 271.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:35:01,864 INFO L168 Benchmark]: Boogie Preprocessor took 77.91 ms. Allocated memory is still 304.1 MB. Free memory was 271.3 MB in the beginning and 269.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:01,865 INFO L168 Benchmark]: RCFGBuilder took 814.25 ms. Allocated memory is still 304.1 MB. Free memory was 269.2 MB in the beginning and 244.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:01,865 INFO L168 Benchmark]: TraceAbstraction took 102553.80 ms. Allocated memory was 304.1 MB in the beginning and 11.0 GB in the end (delta: 10.7 GB). Free memory was 244.0 MB in the beginning and 9.5 GB in the end (delta: -9.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2021-04-29 00:35:01,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 304.1 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 713.81 ms. Allocated memory is still 304.1 MB. Free memory was 274.2 MB in the beginning and 272.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 116.36 ms. Allocated memory is still 304.1 MB. Free memory was 272.3 MB in the beginning and 271.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 77.91 ms. Allocated memory is still 304.1 MB. Free memory was 271.3 MB in the beginning and 269.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 814.25 ms. Allocated memory is still 304.1 MB. Free memory was 269.2 MB in the beginning and 244.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 102553.80 ms. Allocated memory was 304.1 MB in the beginning and 11.0 GB in the end (delta: 10.7 GB). Free memory was 244.0 MB in the beginning and 9.5 GB in the end (delta: -9.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12617.1ms, 81 PlacesBefore, 92 PlacesAfterwards, 69 TransitionsBefore, 79 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 8994 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2965, positive: 2738, positive conditional: 2738, positive unconditional: 0, negative: 227, negative conditional: 227, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1348, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1348, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1348, positive: 1217, positive conditional: 0, positive unconditional: 1217, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 131, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 731, positive: 322, positive conditional: 0, positive unconditional: 322, negative: 409, negative conditional: 0, negative unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2965, positive: 1458, positive conditional: 1458, positive unconditional: 0, negative: 159, negative conditional: 159, negative unconditional: 0, unknown: 1348, unknown conditional: 1348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1274, Positive conditional cache size: 1274, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.7ms, 91 PlacesBefore, 55 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 816 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 188, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 8, positive unconditional: 22, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 8, positive unconditional: 22, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 20, negative conditional: 7, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 188, positive: 133, positive conditional: 133, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1376, Positive cache size: 1304, Positive conditional cache size: 1304, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.1ms, 61 PlacesBefore, 61 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1377, Positive cache size: 1304, Positive conditional cache size: 1304, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.2ms, 63 PlacesBefore, 63 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 47, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1387, Positive cache size: 1313, Positive conditional cache size: 1313, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.9ms, 66 PlacesBefore, 63 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 3, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1390, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8ms, 60 PlacesBefore, 59 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 916 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.8ms, 62 PlacesBefore, 61 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2428.7ms, 64 PlacesBefore, 64 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1068 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): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2477.8ms, 73 PlacesBefore, 73 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 1472 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): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2070.1ms, 81 PlacesBefore, 81 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 1662 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): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1207.7ms, 89 PlacesBefore, 87 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 1652 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): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1946.3ms, 83 PlacesBefore, 83 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 2016 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): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 76 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): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, 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 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 38.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 102366.4ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 77750.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12755.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 159 SDslu, 46 SDs, 0 SdLazy, 650 SolverSat, 275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1025.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 317.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1235occurred in iteration=9, InterpolantAutomatonStates: 64, 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: 41.2ms SsaConstructionTime, 320.0ms SatisfiabilityAnalysisTime, 784.8ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...