/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/mix047_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:38:16,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:38:16,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:38:16,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-28 21:38:16,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:38:16,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:38:16,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:38:16,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 21:38:16,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:38:16,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:38:16,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:38:16,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:38:16,835 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:38:16,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:38:16,836 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:38:16,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:38:16,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:38:16,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:38:16,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:38:16,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:38:16,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:38:16,841 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:38:16,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:38:16,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:38:16,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:38:16,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:38:16,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:38:16,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:38:16,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:38:16,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:38:16,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:38:16,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:38:16,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:38:16,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:38:16,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:38:16,845 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:38:16,845 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:38:16,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:38:16,846 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:38:17,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:38:17,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:38:17,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:38:17,270 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:38:17,270 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:38:17,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_rmo.opt.i [2021-04-28 21:38:17,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac8136cb/e7de4a4b130047f0b999e31b5d67575b/FLAG880373fb5 [2021-04-28 21:38:18,202 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:38:18,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_rmo.opt.i [2021-04-28 21:38:18,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac8136cb/e7de4a4b130047f0b999e31b5d67575b/FLAG880373fb5 [2021-04-28 21:38:18,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac8136cb/e7de4a4b130047f0b999e31b5d67575b [2021-04-28 21:38:18,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:38:18,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:38:18,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:38:18,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:38:18,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:38:18,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:38:18" (1/1) ... [2021-04-28 21:38:18,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561acdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:18, skipping insertion in model container [2021-04-28 21:38:18,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:38:18" (1/1) ... [2021-04-28 21:38:18,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:38:18,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:38:18,861 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/mix047_rmo.opt.i[948,961] [2021-04-28 21:38:19,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:38:19,227 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:38:19,241 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/mix047_rmo.opt.i[948,961] [2021-04-28 21:38:19,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:38:19,389 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:38:19,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19 WrapperNode [2021-04-28 21:38:19,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:38:19,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:38:19,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:38:19,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:38:19,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:38:19,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:38:19,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:38:19,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:38:19,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... [2021-04-28 21:38:19,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:38:19,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:38:19,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:38:19,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:38:19,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:38:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:38:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:38:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:38:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:38:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:38:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:38:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:38:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:38:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:38:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:38:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 21:38:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 21:38:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:38:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:38:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:38:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:38:19,690 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 21:38:21,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:38:21,953 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:38:21,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:38:21 BoogieIcfgContainer [2021-04-28 21:38:21,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:38:21,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:38:21,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:38:21,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:38:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:38:18" (1/3) ... [2021-04-28 21:38:21,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d0b6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:38:21, skipping insertion in model container [2021-04-28 21:38:21,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:38:19" (2/3) ... [2021-04-28 21:38:21,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d0b6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:38:21, skipping insertion in model container [2021-04-28 21:38:21,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:38:21" (3/3) ... [2021-04-28 21:38:21,970 INFO L111 eAbstractionObserver]: Analyzing ICFG mix047_rmo.opt.i [2021-04-28 21:38:21,979 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:38:21,988 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:38:21,989 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:38:22,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,046 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,046 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,046 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,046 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,048 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,059 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,059 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,059 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,060 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,060 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,060 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,060 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,060 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,061 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,061 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,061 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,061 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,062 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,062 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,063 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,063 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,063 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,065 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,066 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,066 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,067 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,067 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,067 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,067 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,068 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,068 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,072 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,072 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,080 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,094 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,094 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,095 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,095 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,095 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,095 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,095 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,096 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,096 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,096 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,096 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,096 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:38:22,099 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:38:22,124 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 21:38:22,167 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:38:22,167 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:38:22,167 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:38:22,168 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:38:22,168 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:38:22,168 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:38:22,168 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:38:22,168 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:38:22,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 21:38:22,278 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 21:38:22,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:38:22,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:38:22,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 21:38:22,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-04-28 21:38:22,301 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:38:22,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 21:38:22,323 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 21:38:22,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-04-28 21:38:22,381 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 21:38:22,382 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:38:22,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:38:22,390 INFO L146 LiptonReduction]: Number of co-enabled transitions 2598 [2021-04-28 21:38:26,864 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:38:27,877 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:38:30,393 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:38:31,482 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:38:32,319 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:38:32,479 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:38:33,051 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2021-04-28 21:38:33,289 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 21:38:34,025 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 21:38:36,450 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 234 DAG size of output: 193 [2021-04-28 21:38:37,011 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 21:38:39,579 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 21:38:40,712 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 21:38:42,072 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 21:38:42,636 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:38:45,328 WARN L205 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:38:46,542 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:38:47,898 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 21:38:48,546 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:38:51,447 WARN L205 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:38:52,817 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:38:56,393 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 21:38:57,082 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:39:00,013 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:39:01,521 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:39:03,067 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:39:03,786 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:39:06,979 WARN L205 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:39:08,467 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:39:10,151 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:39:10,967 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 21:39:14,366 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:39:15,944 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:39:17,784 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:39:18,555 WARN L205 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:39:22,051 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:39:23,712 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:39:28,475 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:39:29,309 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:39:33,099 WARN L205 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:39:34,857 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:39:36,813 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:39:37,723 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:39:41,793 WARN L205 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 21:39:43,598 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 21:39:45,810 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:39:46,824 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 21:39:51,193 WARN L205 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:39:53,199 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:39:56,346 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:39:56,485 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:39:56,623 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:39:56,772 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:39:57,082 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:57,185 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:57,299 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:39:57,430 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:39:57,559 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:39:57,682 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:39:57,842 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:39:58,003 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:39:58,155 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:39:58,297 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:39:58,441 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:39:58,598 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:39:58,747 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:39:58,877 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:39:58,993 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:59,112 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:59,217 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:59,321 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:59,625 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:59,730 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:39:59,873 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:00,011 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:00,149 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:00,291 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:00,405 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:00,512 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:00,631 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:00,755 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:01,783 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-04-28 21:40:01,886 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-04-28 21:40:01,991 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-04-28 21:40:02,094 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-04-28 21:40:02,207 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 21:40:02,319 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 21:40:02,430 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 21:40:02,543 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 21:40:03,030 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:40:03,165 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:40:03,298 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:40:03,432 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:40:03,540 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:40:03,649 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:40:03,758 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:40:03,867 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 21:40:04,679 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:04,818 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:04,959 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:05,102 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:05,572 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:40:05,693 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:40:05,813 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:40:05,933 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:40:07,389 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:07,516 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:07,641 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:07,767 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:40:07,883 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:07,997 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:08,110 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:08,223 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:40:08,806 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:40:09,005 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:40:09,190 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:40:09,364 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:40:09,514 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:09,666 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:09,811 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:09,950 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:10,115 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:40:10,272 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:40:10,438 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:40:10,605 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:40:10,770 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:10,938 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:11,107 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:11,280 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:11,428 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:11,572 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:11,733 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:11,900 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:12,109 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:40:12,330 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:40:12,552 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:40:12,771 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:40:12,990 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:40:13,197 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:40:13,426 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:40:13,629 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:40:13,820 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:40:14,009 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:40:14,200 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:40:14,394 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:40:14,566 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:14,737 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:14,900 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:15,083 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:40:15,346 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:40:15,575 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:40:15,802 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:40:16,027 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:40:16,241 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:40:16,477 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:40:16,704 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:40:16,924 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:40:17,068 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:17,222 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:17,368 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:17,514 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:17,659 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:17,804 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:17,949 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,094 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,239 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,384 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,529 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,673 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,818 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:18,962 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:19,107 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:19,250 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:40:19,484 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:40:19,711 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:40:19,958 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:40:20,202 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:40:20,525 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:40:20,837 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:40:21,180 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:40:21,524 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:40:21,779 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:22,029 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:22,266 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:22,518 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:22,725 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:40:22,942 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:40:23,173 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:40:23,406 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:40:23,608 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:23,832 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:24,047 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:24,269 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:24,529 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:40:24,780 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:40:25,030 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:40:25,272 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:40:25,508 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:25,751 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:25,991 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:26,237 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:26,504 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:26,775 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:27,057 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:27,336 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:27,694 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:40:28,058 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:40:28,420 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:40:28,758 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:40:29,013 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:40:29,266 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:40:29,521 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:40:29,778 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:40:30,056 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:40:30,346 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:40:30,658 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:40:30,970 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:40:31,239 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:31,503 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:31,793 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:32,085 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:40:32,386 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:40:32,688 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:40:32,982 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:40:33,278 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:40:33,616 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:40:33,957 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:40:34,274 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:40:34,591 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:40:34,821 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:35,060 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:35,329 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:35,591 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:40:35,929 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:40:36,249 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:40:36,561 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:40:36,896 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:40:37,324 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:37,692 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:38,029 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:38,375 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:38,700 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:39,028 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:39,373 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:39,731 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:40,100 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:40,463 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:40,800 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:41,140 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:42,195 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 21:40:42,661 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 21:40:43,670 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 21:40:44,138 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 21:40:44,515 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:44,874 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:45,241 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:45,611 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:40:46,570 WARN L205 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 21:40:47,039 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 21:40:48,049 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 21:40:48,525 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 21:40:48,737 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:48,948 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:49,169 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:49,392 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:40:49,460 INFO L158 LiptonReduction]: Checked pairs total: 24978 [2021-04-28 21:40:49,460 INFO L160 LiptonReduction]: Total number of compositions: 259 [2021-04-28 21:40:49,466 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147167 [2021-04-28 21:40:49,492 INFO L129 PetriNetUnfolder]: 0/89 cut-off events. [2021-04-28 21:40:49,492 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:40:49,492 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:49,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:49,494 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:49,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:49,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2014205008, now seen corresponding path program 1 times [2021-04-28 21:40:49,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:49,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150557347] [2021-04-28 21:40:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:49,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:49,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:49,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150557347] [2021-04-28 21:40:49,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:49,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:40:49,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185001690] [2021-04-28 21:40:49,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:40:49,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:49,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:40:49,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:40:49,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 375 [2021-04-28 21:40:49,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:49,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:49,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 375 [2021-04-28 21:40:49,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:50,439 INFO L129 PetriNetUnfolder]: 212/678 cut-off events. [2021-04-28 21:40:50,439 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:40:50,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 678 events. 212/678 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5282 event pairs, 16 based on Foata normal form. 10/308 useless extension candidates. Maximal degree in co-relation 1008. Up to 333 conditions per place. [2021-04-28 21:40:50,446 INFO L132 encePairwiseOnDemand]: 358/375 looper letters, 7 selfloop transitions, 4 changer transitions 102/154 dead transitions. [2021-04-28 21:40:50,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 154 transitions, 416 flow [2021-04-28 21:40:50,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:40:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:40:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2021-04-28 21:40:50,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8311111111111111 [2021-04-28 21:40:50,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 935 transitions. [2021-04-28 21:40:50,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 935 transitions. [2021-04-28 21:40:50,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:50,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 935 transitions. [2021-04-28 21:40:50,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:50,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:50,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:50,498 INFO L185 Difference]: Start difference. First operand has 153 places, 142 transitions, 296 flow. Second operand 3 states and 935 transitions. [2021-04-28 21:40:50,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 154 transitions, 416 flow [2021-04-28 21:40:50,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 154 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 21:40:50,507 INFO L241 Difference]: Finished difference. Result has 148 places, 49 transitions, 114 flow [2021-04-28 21:40:50,509 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=148, PETRI_TRANSITIONS=49} [2021-04-28 21:40:50,510 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -5 predicate places. [2021-04-28 21:40:50,510 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:50,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:40:50,511 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:40:50,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 114 flow [2021-04-28 21:40:50,519 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-04-28 21:40:50,519 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:40:50,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 161 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:40:50,521 INFO L146 LiptonReduction]: Number of co-enabled transitions 1464 [2021-04-28 21:40:50,868 INFO L158 LiptonReduction]: Checked pairs total: 1426 [2021-04-28 21:40:50,868 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:50,868 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 358 [2021-04-28 21:40:50,870 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 114 flow [2021-04-28 21:40:50,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:50,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:50,871 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:50,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:40:50,872 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:50,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1379295936, now seen corresponding path program 1 times [2021-04-28 21:40:50,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:50,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423978580] [2021-04-28 21:40:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:50,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:50,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:50,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423978580] [2021-04-28 21:40:50,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:50,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:40:50,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191327378] [2021-04-28 21:40:50,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:40:50,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:50,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:40:50,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:40:50,999 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 375 [2021-04-28 21:40:51,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:51,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 375 [2021-04-28 21:40:51,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:51,029 INFO L129 PetriNetUnfolder]: 3/65 cut-off events. [2021-04-28 21:40:51,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:40:51,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 65 events. 3/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 230 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2021-04-28 21:40:51,030 INFO L132 encePairwiseOnDemand]: 371/375 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 21:40:51,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 130 flow [2021-04-28 21:40:51,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:40:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:40:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 835 transitions. [2021-04-28 21:40:51,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2021-04-28 21:40:51,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 835 transitions. [2021-04-28 21:40:51,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 835 transitions. [2021-04-28 21:40:51,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:51,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 835 transitions. [2021-04-28 21:40:51,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,046 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 114 flow. Second operand 3 states and 835 transitions. [2021-04-28 21:40:51,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 130 flow [2021-04-28 21:40:51,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:40:51,048 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 125 flow [2021-04-28 21:40:51,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-04-28 21:40:51,049 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -92 predicate places. [2021-04-28 21:40:51,049 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:51,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:40:51,050 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:40:51,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 125 flow [2021-04-28 21:40:51,062 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2021-04-28 21:40:51,062 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:40:51,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 236 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 76. Up to 10 conditions per place. [2021-04-28 21:40:51,064 INFO L146 LiptonReduction]: Number of co-enabled transitions 1574 [2021-04-28 21:40:51,261 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 21:40:51,449 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:51,561 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:40:51,652 INFO L158 LiptonReduction]: Checked pairs total: 2266 [2021-04-28 21:40:51,652 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:40:51,652 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 603 [2021-04-28 21:40:51,654 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 125 flow [2021-04-28 21:40:51,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,655 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:51,655 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:51,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:40:51,656 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:51,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1976607963, now seen corresponding path program 1 times [2021-04-28 21:40:51,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:51,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934396425] [2021-04-28 21:40:51,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:51,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:51,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:51,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934396425] [2021-04-28 21:40:51,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:51,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:40:51,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683808493] [2021-04-28 21:40:51,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:40:51,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:51,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:40:51,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:40:51,821 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 376 [2021-04-28 21:40:51,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:51,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 376 [2021-04-28 21:40:51,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:51,854 INFO L129 PetriNetUnfolder]: 10/92 cut-off events. [2021-04-28 21:40:51,854 INFO L130 PetriNetUnfolder]: For 8/17 co-relation queries the response was YES. [2021-04-28 21:40:51,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 92 events. 10/92 cut-off events. For 8/17 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 396 event pairs, 3 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 131. Up to 19 conditions per place. [2021-04-28 21:40:51,856 INFO L132 encePairwiseOnDemand]: 372/376 looper letters, 3 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2021-04-28 21:40:51,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:40:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:40:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2021-04-28 21:40:51,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7322695035460993 [2021-04-28 21:40:51,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2021-04-28 21:40:51,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2021-04-28 21:40:51,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:51,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2021-04-28 21:40:51,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,871 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 125 flow. Second operand 3 states and 826 transitions. [2021-04-28 21:40:51,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 53 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:40:51,874 INFO L241 Difference]: Finished difference. Result has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2021-04-28 21:40:51,874 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -90 predicate places. [2021-04-28 21:40:51,874 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:51,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,875 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,890 INFO L129 PetriNetUnfolder]: 10/92 cut-off events. [2021-04-28 21:40:51,890 INFO L130 PetriNetUnfolder]: For 7/13 co-relation queries the response was YES. [2021-04-28 21:40:51,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 92 events. 10/92 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 391 event pairs, 3 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 130. Up to 19 conditions per place. [2021-04-28 21:40:51,894 INFO L146 LiptonReduction]: Number of co-enabled transitions 1696 [2021-04-28 21:40:51,946 INFO L158 LiptonReduction]: Checked pairs total: 839 [2021-04-28 21:40:51,946 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:51,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-04-28 21:40:51,948 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 141 flow [2021-04-28 21:40:51,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:51,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:51,950 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:51,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:40:51,950 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:51,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:51,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1641569529, now seen corresponding path program 1 times [2021-04-28 21:40:51,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:51,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119364204] [2021-04-28 21:40:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:52,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:52,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119364204] [2021-04-28 21:40:52,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:52,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:40:52,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787639304] [2021-04-28 21:40:52,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:40:52,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:52,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:40:52,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:40:52,098 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 376 [2021-04-28 21:40:52,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:52,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 376 [2021-04-28 21:40:52,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:52,136 INFO L129 PetriNetUnfolder]: 10/92 cut-off events. [2021-04-28 21:40:52,136 INFO L130 PetriNetUnfolder]: For 50/62 co-relation queries the response was YES. [2021-04-28 21:40:52,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 92 events. 10/92 cut-off events. For 50/62 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 395 event pairs, 3 based on Foata normal form. 2/57 useless extension candidates. Maximal degree in co-relation 138. Up to 19 conditions per place. [2021-04-28 21:40:52,138 INFO L132 encePairwiseOnDemand]: 373/376 looper letters, 1 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-04-28 21:40:52,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 147 flow [2021-04-28 21:40:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:40:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:40:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2021-04-28 21:40:52,144 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6976950354609929 [2021-04-28 21:40:52,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2021-04-28 21:40:52,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2021-04-28 21:40:52,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:52,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2021-04-28 21:40:52,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,152 INFO L185 Difference]: Start difference. First operand has 63 places, 53 transitions, 141 flow. Second operand 3 states and 787 transitions. [2021-04-28 21:40:52,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 147 flow [2021-04-28 21:40:52,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 53 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:40:52,157 INFO L241 Difference]: Finished difference. Result has 65 places, 53 transitions, 146 flow [2021-04-28 21:40:52,157 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=65, PETRI_TRANSITIONS=53} [2021-04-28 21:40:52,157 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -88 predicate places. [2021-04-28 21:40:52,157 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:52,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 53 transitions, 146 flow [2021-04-28 21:40:52,158 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 53 transitions, 146 flow [2021-04-28 21:40:52,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 53 transitions, 146 flow [2021-04-28 21:40:52,175 INFO L129 PetriNetUnfolder]: 7/83 cut-off events. [2021-04-28 21:40:52,176 INFO L130 PetriNetUnfolder]: For 17/19 co-relation queries the response was YES. [2021-04-28 21:40:52,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 83 events. 7/83 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 361 event pairs, 3 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 123. Up to 15 conditions per place. [2021-04-28 21:40:52,179 INFO L146 LiptonReduction]: Number of co-enabled transitions 1686 [2021-04-28 21:40:52,409 INFO L158 LiptonReduction]: Checked pairs total: 769 [2021-04-28 21:40:52,409 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:52,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-04-28 21:40:52,411 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 53 transitions, 146 flow [2021-04-28 21:40:52,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:52,412 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:52,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:40:52,413 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:52,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:52,413 INFO L82 PathProgramCache]: Analyzing trace with hash 650956775, now seen corresponding path program 1 times [2021-04-28 21:40:52,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:52,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657028345] [2021-04-28 21:40:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:52,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:52,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:40:52,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:52,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:52,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657028345] [2021-04-28 21:40:52,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:52,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:40:52,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370070656] [2021-04-28 21:40:52,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:40:52,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:52,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:40:52,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:40:52,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 376 [2021-04-28 21:40:52,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:52,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 376 [2021-04-28 21:40:52,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:52,529 INFO L129 PetriNetUnfolder]: 4/90 cut-off events. [2021-04-28 21:40:52,529 INFO L130 PetriNetUnfolder]: For 46/79 co-relation queries the response was YES. [2021-04-28 21:40:52,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 90 events. 4/90 cut-off events. For 46/79 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 440 event pairs, 1 based on Foata normal form. 2/53 useless extension candidates. Maximal degree in co-relation 141. Up to 15 conditions per place. [2021-04-28 21:40:52,530 INFO L132 encePairwiseOnDemand]: 373/376 looper letters, 3 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2021-04-28 21:40:52,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 53 transitions, 158 flow [2021-04-28 21:40:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:40:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:40:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2021-04-28 21:40:52,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7420212765957447 [2021-04-28 21:40:52,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 837 transitions. [2021-04-28 21:40:52,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 837 transitions. [2021-04-28 21:40:52,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:52,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 837 transitions. [2021-04-28 21:40:52,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,545 INFO L185 Difference]: Start difference. First operand has 65 places, 53 transitions, 146 flow. Second operand 3 states and 837 transitions. [2021-04-28 21:40:52,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 53 transitions, 158 flow [2021-04-28 21:40:52,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 53 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:40:52,548 INFO L241 Difference]: Finished difference. Result has 66 places, 53 transitions, 153 flow [2021-04-28 21:40:52,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=66, PETRI_TRANSITIONS=53} [2021-04-28 21:40:52,548 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -87 predicate places. [2021-04-28 21:40:52,548 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:52,549 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 53 transitions, 153 flow [2021-04-28 21:40:52,549 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 53 transitions, 153 flow [2021-04-28 21:40:52,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 53 transitions, 153 flow [2021-04-28 21:40:52,562 INFO L129 PetriNetUnfolder]: 4/81 cut-off events. [2021-04-28 21:40:52,562 INFO L130 PetriNetUnfolder]: For 31/38 co-relation queries the response was YES. [2021-04-28 21:40:52,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 81 events. 4/81 cut-off events. For 31/38 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 370 event pairs, 2 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 123. Up to 13 conditions per place. [2021-04-28 21:40:52,565 INFO L146 LiptonReduction]: Number of co-enabled transitions 1684 [2021-04-28 21:40:52,792 INFO L158 LiptonReduction]: Checked pairs total: 769 [2021-04-28 21:40:52,792 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:52,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 244 [2021-04-28 21:40:52,794 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 153 flow [2021-04-28 21:40:52,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:52,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:52,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:52,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:40:52,795 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:52,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:52,796 INFO L82 PathProgramCache]: Analyzing trace with hash 2043110196, now seen corresponding path program 1 times [2021-04-28 21:40:52,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:52,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473436821] [2021-04-28 21:40:52,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:52,917 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 21:40:52,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:40:52,960 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 21:40:52,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:40:52,994 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:40:52,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:40:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:53,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473436821] [2021-04-28 21:40:53,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:53,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:40:53,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750087] [2021-04-28 21:40:53,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:40:53,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:53,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:40:53,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:40:53,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 376 [2021-04-28 21:40:53,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 233.8) internal successors, (1169), 5 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:53,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:53,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 376 [2021-04-28 21:40:53,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:53,333 INFO L129 PetriNetUnfolder]: 137/407 cut-off events. [2021-04-28 21:40:53,333 INFO L130 PetriNetUnfolder]: For 259/317 co-relation queries the response was YES. [2021-04-28 21:40:53,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 407 events. 137/407 cut-off events. For 259/317 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2679 event pairs, 51 based on Foata normal form. 3/253 useless extension candidates. Maximal degree in co-relation 808. Up to 217 conditions per place. [2021-04-28 21:40:53,341 INFO L132 encePairwiseOnDemand]: 369/376 looper letters, 11 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2021-04-28 21:40:53,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 62 transitions, 210 flow [2021-04-28 21:40:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:40:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:40:53,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 950 transitions. [2021-04-28 21:40:53,348 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6316489361702128 [2021-04-28 21:40:53,348 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 950 transitions. [2021-04-28 21:40:53,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 950 transitions. [2021-04-28 21:40:53,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:53,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 950 transitions. [2021-04-28 21:40:53,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 237.5) internal successors, (950), 4 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:53,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:53,358 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:53,358 INFO L185 Difference]: Start difference. First operand has 66 places, 53 transitions, 153 flow. Second operand 4 states and 950 transitions. [2021-04-28 21:40:53,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 62 transitions, 210 flow [2021-04-28 21:40:53,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 205 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 21:40:53,362 INFO L241 Difference]: Finished difference. Result has 70 places, 60 transitions, 205 flow [2021-04-28 21:40:53,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2021-04-28 21:40:53,363 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -83 predicate places. [2021-04-28 21:40:53,363 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:53,363 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 60 transitions, 205 flow [2021-04-28 21:40:53,363 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 60 transitions, 205 flow [2021-04-28 21:40:53,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 60 transitions, 205 flow [2021-04-28 21:40:53,390 INFO L129 PetriNetUnfolder]: 23/164 cut-off events. [2021-04-28 21:40:53,390 INFO L130 PetriNetUnfolder]: For 161/178 co-relation queries the response was YES. [2021-04-28 21:40:53,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 164 events. 23/164 cut-off events. For 161/178 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 954 event pairs, 9 based on Foata normal form. 1/87 useless extension candidates. Maximal degree in co-relation 316. Up to 30 conditions per place. [2021-04-28 21:40:53,396 INFO L146 LiptonReduction]: Number of co-enabled transitions 2022 [2021-04-28 21:40:53,487 INFO L158 LiptonReduction]: Checked pairs total: 518 [2021-04-28 21:40:53,488 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:53,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-04-28 21:40:53,490 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 205 flow [2021-04-28 21:40:53,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 233.8) internal successors, (1169), 5 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:53,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:53,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:53,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:40:53,491 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:53,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:53,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1317164318, now seen corresponding path program 1 times [2021-04-28 21:40:53,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:53,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321944004] [2021-04-28 21:40:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:53,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:53,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:40:53,588 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-04-28 21:40:53,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-28 21:40:53,638 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-04-28 21:40:53,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-04-28 21:40:53,700 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-04-28 21:40:53,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-04-28 21:40:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:53,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321944004] [2021-04-28 21:40:53,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:53,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:40:53,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264229340] [2021-04-28 21:40:53,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:40:53,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:53,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:40:53,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:40:53,771 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 376 [2021-04-28 21:40:53,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 205 flow. Second operand has 6 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:53,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:53,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 376 [2021-04-28 21:40:53,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:54,106 INFO L129 PetriNetUnfolder]: 167/464 cut-off events. [2021-04-28 21:40:54,106 INFO L130 PetriNetUnfolder]: For 348/406 co-relation queries the response was YES. [2021-04-28 21:40:54,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 464 events. 167/464 cut-off events. For 348/406 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2965 event pairs, 12 based on Foata normal form. 9/307 useless extension candidates. Maximal degree in co-relation 1122. Up to 241 conditions per place. [2021-04-28 21:40:54,114 INFO L132 encePairwiseOnDemand]: 367/376 looper letters, 9 selfloop transitions, 19 changer transitions 0/71 dead transitions. [2021-04-28 21:40:54,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 71 transitions, 294 flow [2021-04-28 21:40:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:40:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:40:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1186 transitions. [2021-04-28 21:40:54,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6308510638297873 [2021-04-28 21:40:54,122 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1186 transitions. [2021-04-28 21:40:54,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1186 transitions. [2021-04-28 21:40:54,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:54,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1186 transitions. [2021-04-28 21:40:54,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.2) internal successors, (1186), 5 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,131 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,131 INFO L185 Difference]: Start difference. First operand has 70 places, 60 transitions, 205 flow. Second operand 5 states and 1186 transitions. [2021-04-28 21:40:54,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 71 transitions, 294 flow [2021-04-28 21:40:54,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:40:54,135 INFO L241 Difference]: Finished difference. Result has 76 places, 69 transitions, 298 flow [2021-04-28 21:40:54,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2021-04-28 21:40:54,136 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -77 predicate places. [2021-04-28 21:40:54,136 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:54,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 69 transitions, 298 flow [2021-04-28 21:40:54,137 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 69 transitions, 298 flow [2021-04-28 21:40:54,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 69 transitions, 298 flow [2021-04-28 21:40:54,208 INFO L129 PetriNetUnfolder]: 96/379 cut-off events. [2021-04-28 21:40:54,208 INFO L130 PetriNetUnfolder]: For 627/684 co-relation queries the response was YES. [2021-04-28 21:40:54,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 379 events. 96/379 cut-off events. For 627/684 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2691 event pairs, 30 based on Foata normal form. 2/206 useless extension candidates. Maximal degree in co-relation 953. Up to 127 conditions per place. [2021-04-28 21:40:54,221 INFO L146 LiptonReduction]: Number of co-enabled transitions 2412 [2021-04-28 21:40:54,231 INFO L158 LiptonReduction]: Checked pairs total: 370 [2021-04-28 21:40:54,231 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:54,231 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-04-28 21:40:54,233 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 298 flow [2021-04-28 21:40:54,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:54,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:54,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:40:54,234 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:54,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:54,235 INFO L82 PathProgramCache]: Analyzing trace with hash 178877870, now seen corresponding path program 2 times [2021-04-28 21:40:54,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:54,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277527033] [2021-04-28 21:40:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:54,351 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-04-28 21:40:54,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:40:54,375 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 21:40:54,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:40:54,410 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-04-28 21:40:54,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 21:40:54,477 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:40:54,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:40:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:54,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277527033] [2021-04-28 21:40:54,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:54,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:40:54,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982991316] [2021-04-28 21:40:54,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:40:54,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:54,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:40:54,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:40:54,563 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 376 [2021-04-28 21:40:54,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:54,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 376 [2021-04-28 21:40:54,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:54,920 INFO L129 PetriNetUnfolder]: 170/457 cut-off events. [2021-04-28 21:40:54,920 INFO L130 PetriNetUnfolder]: For 650/736 co-relation queries the response was YES. [2021-04-28 21:40:54,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 457 events. 170/457 cut-off events. For 650/736 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2842 event pairs, 28 based on Foata normal form. 14/316 useless extension candidates. Maximal degree in co-relation 1565. Up to 244 conditions per place. [2021-04-28 21:40:54,931 INFO L132 encePairwiseOnDemand]: 367/376 looper letters, 10 selfloop transitions, 20 changer transitions 0/73 dead transitions. [2021-04-28 21:40:54,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 382 flow [2021-04-28 21:40:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:40:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:40:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1201 transitions. [2021-04-28 21:40:54,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6388297872340426 [2021-04-28 21:40:54,939 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1201 transitions. [2021-04-28 21:40:54,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1201 transitions. [2021-04-28 21:40:54,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:54,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1201 transitions. [2021-04-28 21:40:54,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 240.2) internal successors, (1201), 5 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,949 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:54,949 INFO L185 Difference]: Start difference. First operand has 76 places, 69 transitions, 298 flow. Second operand 5 states and 1201 transitions. [2021-04-28 21:40:54,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 382 flow [2021-04-28 21:40:54,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 360 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-04-28 21:40:54,954 INFO L241 Difference]: Finished difference. Result has 80 places, 71 transitions, 342 flow [2021-04-28 21:40:54,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=80, PETRI_TRANSITIONS=71} [2021-04-28 21:40:54,955 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -73 predicate places. [2021-04-28 21:40:54,955 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:54,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 342 flow [2021-04-28 21:40:54,956 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 342 flow [2021-04-28 21:40:54,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 342 flow [2021-04-28 21:40:55,031 INFO L129 PetriNetUnfolder]: 100/394 cut-off events. [2021-04-28 21:40:55,031 INFO L130 PetriNetUnfolder]: For 809/869 co-relation queries the response was YES. [2021-04-28 21:40:55,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 394 events. 100/394 cut-off events. For 809/869 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2839 event pairs, 23 based on Foata normal form. 5/221 useless extension candidates. Maximal degree in co-relation 1083. Up to 128 conditions per place. [2021-04-28 21:40:55,047 INFO L146 LiptonReduction]: Number of co-enabled transitions 2470 [2021-04-28 21:40:55,056 INFO L158 LiptonReduction]: Checked pairs total: 415 [2021-04-28 21:40:55,056 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:55,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-04-28 21:40:55,058 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 342 flow [2021-04-28 21:40:55,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:55,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:55,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:55,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:40:55,059 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:55,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1385992094, now seen corresponding path program 3 times [2021-04-28 21:40:55,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:55,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869132124] [2021-04-28 21:40:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:55,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:55,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:40:55,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:55,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 21:40:55,198 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:40:55,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:40:55,286 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:40:55,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:40:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:55,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869132124] [2021-04-28 21:40:55,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:55,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:40:55,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068601974] [2021-04-28 21:40:55,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:40:55,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:55,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:40:55,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:40:55,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 376 [2021-04-28 21:40:55,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 232.83333333333334) internal successors, (1397), 6 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:55,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:55,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 376 [2021-04-28 21:40:55,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:55,858 INFO L129 PetriNetUnfolder]: 153/548 cut-off events. [2021-04-28 21:40:55,858 INFO L130 PetriNetUnfolder]: For 1016/1090 co-relation queries the response was YES. [2021-04-28 21:40:55,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1803 conditions, 548 events. 153/548 cut-off events. For 1016/1090 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4210 event pairs, 7 based on Foata normal form. 16/356 useless extension candidates. Maximal degree in co-relation 1780. Up to 188 conditions per place. [2021-04-28 21:40:55,869 INFO L132 encePairwiseOnDemand]: 368/376 looper letters, 10 selfloop transitions, 27 changer transitions 0/80 dead transitions. [2021-04-28 21:40:55,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 481 flow [2021-04-28 21:40:55,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:40:55,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:40:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1181 transitions. [2021-04-28 21:40:55,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6281914893617021 [2021-04-28 21:40:55,877 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1181 transitions. [2021-04-28 21:40:55,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1181 transitions. [2021-04-28 21:40:55,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:55,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1181 transitions. [2021-04-28 21:40:55,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:55,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:55,886 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:55,886 INFO L185 Difference]: Start difference. First operand has 80 places, 71 transitions, 342 flow. Second operand 5 states and 1181 transitions. [2021-04-28 21:40:55,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 481 flow [2021-04-28 21:40:55,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 80 transitions, 437 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-04-28 21:40:55,892 INFO L241 Difference]: Finished difference. Result has 82 places, 78 transitions, 434 flow [2021-04-28 21:40:55,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=434, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2021-04-28 21:40:55,893 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -71 predicate places. [2021-04-28 21:40:55,893 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:55,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 434 flow [2021-04-28 21:40:55,894 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 78 transitions, 434 flow [2021-04-28 21:40:55,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 434 flow [2021-04-28 21:40:55,961 INFO L129 PetriNetUnfolder]: 88/372 cut-off events. [2021-04-28 21:40:55,961 INFO L130 PetriNetUnfolder]: For 813/864 co-relation queries the response was YES. [2021-04-28 21:40:55,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 372 events. 88/372 cut-off events. For 813/864 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2667 event pairs, 21 based on Foata normal form. 11/226 useless extension candidates. Maximal degree in co-relation 1163. Up to 127 conditions per place. [2021-04-28 21:40:55,976 INFO L146 LiptonReduction]: Number of co-enabled transitions 2704 [2021-04-28 21:40:55,989 INFO L158 LiptonReduction]: Checked pairs total: 473 [2021-04-28 21:40:55,990 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:55,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-04-28 21:40:55,991 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 434 flow [2021-04-28 21:40:55,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 232.83333333333334) internal successors, (1397), 6 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:55,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:55,992 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:55,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:40:55,992 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:55,993 INFO L82 PathProgramCache]: Analyzing trace with hash -670812437, now seen corresponding path program 1 times [2021-04-28 21:40:55,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:55,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789334317] [2021-04-28 21:40:55,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:56,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:56,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:40:56,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:40:56,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:40:56,238 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 21:40:56,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:40:56,331 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-04-28 21:40:56,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-28 21:40:56,447 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.1 percent of original size [2021-04-28 21:40:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-04-28 21:40:56,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:56,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789334317] [2021-04-28 21:40:56,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:56,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:40:56,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117626691] [2021-04-28 21:40:56,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:40:56,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:56,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:40:56,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:40:56,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 376 [2021-04-28 21:40:56,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 434 flow. Second operand has 7 states, 7 states have (on average 221.85714285714286) internal successors, (1553), 7 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:56,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:56,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 376 [2021-04-28 21:40:56,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:57,030 INFO L129 PetriNetUnfolder]: 147/613 cut-off events. [2021-04-28 21:40:57,030 INFO L130 PetriNetUnfolder]: For 1169/1247 co-relation queries the response was YES. [2021-04-28 21:40:57,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2105 conditions, 613 events. 147/613 cut-off events. For 1169/1247 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5228 event pairs, 23 based on Foata normal form. 16/384 useless extension candidates. Maximal degree in co-relation 2081. Up to 219 conditions per place. [2021-04-28 21:40:57,042 INFO L132 encePairwiseOnDemand]: 367/376 looper letters, 15 selfloop transitions, 23 changer transitions 0/81 dead transitions. [2021-04-28 21:40:57,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 81 transitions, 532 flow [2021-04-28 21:40:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:40:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:40:57,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1126 transitions. [2021-04-28 21:40:57,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5989361702127659 [2021-04-28 21:40:57,050 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1126 transitions. [2021-04-28 21:40:57,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1126 transitions. [2021-04-28 21:40:57,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:57,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1126 transitions. [2021-04-28 21:40:57,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 225.2) internal successors, (1126), 5 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:57,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:57,063 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:57,063 INFO L185 Difference]: Start difference. First operand has 82 places, 78 transitions, 434 flow. Second operand 5 states and 1126 transitions. [2021-04-28 21:40:57,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 81 transitions, 532 flow [2021-04-28 21:40:57,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 514 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-04-28 21:40:57,072 INFO L241 Difference]: Finished difference. Result has 87 places, 79 transitions, 483 flow [2021-04-28 21:40:57,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=483, PETRI_PLACES=87, PETRI_TRANSITIONS=79} [2021-04-28 21:40:57,073 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -66 predicate places. [2021-04-28 21:40:57,073 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:57,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 79 transitions, 483 flow [2021-04-28 21:40:57,074 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 79 transitions, 483 flow [2021-04-28 21:40:57,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 79 transitions, 483 flow [2021-04-28 21:40:57,195 INFO L129 PetriNetUnfolder]: 84/408 cut-off events. [2021-04-28 21:40:57,195 INFO L130 PetriNetUnfolder]: For 929/980 co-relation queries the response was YES. [2021-04-28 21:40:57,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 408 events. 84/408 cut-off events. For 929/980 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 3186 event pairs, 31 based on Foata normal form. 11/246 useless extension candidates. Maximal degree in co-relation 1289. Up to 137 conditions per place. [2021-04-28 21:40:57,211 INFO L146 LiptonReduction]: Number of co-enabled transitions 2758 [2021-04-28 21:40:57,220 INFO L158 LiptonReduction]: Checked pairs total: 516 [2021-04-28 21:40:57,220 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:57,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147 [2021-04-28 21:40:57,222 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 79 transitions, 483 flow [2021-04-28 21:40:57,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 221.85714285714286) internal successors, (1553), 7 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:57,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:57,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:57,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:40:57,224 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:57,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:57,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1117803169, now seen corresponding path program 2 times [2021-04-28 21:40:57,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:57,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802185179] [2021-04-28 21:40:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:57,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:57,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 21:40:57,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:57,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 21:40:57,402 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 21:40:57,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:40:57,496 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:40:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:40:57,606 INFO L142 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-04-28 21:40:57,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-04-28 21:40:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:57,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802185179] [2021-04-28 21:40:57,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:57,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:40:57,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452575520] [2021-04-28 21:40:57,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:40:57,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:57,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:40:57,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:40:57,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 376 [2021-04-28 21:40:57,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 79 transitions, 483 flow. Second operand has 7 states, 7 states have (on average 223.85714285714286) internal successors, (1567), 7 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:57,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:57,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 376 [2021-04-28 21:40:57,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:58,114 INFO L129 PetriNetUnfolder]: 141/692 cut-off events. [2021-04-28 21:40:58,114 INFO L130 PetriNetUnfolder]: For 1275/1345 co-relation queries the response was YES. [2021-04-28 21:40:58,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 692 events. 141/692 cut-off events. For 1275/1345 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6336 event pairs, 4 based on Foata normal form. 14/427 useless extension candidates. Maximal degree in co-relation 2354. Up to 221 conditions per place. [2021-04-28 21:40:58,127 INFO L132 encePairwiseOnDemand]: 369/376 looper letters, 19 selfloop transitions, 23 changer transitions 0/85 dead transitions. [2021-04-28 21:40:58,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 617 flow [2021-04-28 21:40:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:40:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:40:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1135 transitions. [2021-04-28 21:40:58,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6037234042553191 [2021-04-28 21:40:58,135 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1135 transitions. [2021-04-28 21:40:58,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1135 transitions. [2021-04-28 21:40:58,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:58,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1135 transitions. [2021-04-28 21:40:58,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:58,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:58,161 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:58,161 INFO L185 Difference]: Start difference. First operand has 87 places, 79 transitions, 483 flow. Second operand 5 states and 1135 transitions. [2021-04-28 21:40:58,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 617 flow [2021-04-28 21:40:58,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 85 transitions, 578 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 21:40:58,169 INFO L241 Difference]: Finished difference. Result has 89 places, 81 transitions, 534 flow [2021-04-28 21:40:58,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=534, PETRI_PLACES=89, PETRI_TRANSITIONS=81} [2021-04-28 21:40:58,169 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -64 predicate places. [2021-04-28 21:40:58,169 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:58,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 81 transitions, 534 flow [2021-04-28 21:40:58,170 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 81 transitions, 534 flow [2021-04-28 21:40:58,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 81 transitions, 534 flow [2021-04-28 21:40:58,237 INFO L129 PetriNetUnfolder]: 78/434 cut-off events. [2021-04-28 21:40:58,237 INFO L130 PetriNetUnfolder]: For 1236/1295 co-relation queries the response was YES. [2021-04-28 21:40:58,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 434 events. 78/434 cut-off events. For 1236/1295 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3573 event pairs, 31 based on Foata normal form. 11/256 useless extension candidates. Maximal degree in co-relation 1390. Up to 139 conditions per place. [2021-04-28 21:40:58,250 INFO L146 LiptonReduction]: Number of co-enabled transitions 2840 [2021-04-28 21:40:58,258 INFO L158 LiptonReduction]: Checked pairs total: 599 [2021-04-28 21:40:58,258 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:58,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-04-28 21:40:58,260 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 81 transitions, 534 flow [2021-04-28 21:40:58,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 223.85714285714286) internal successors, (1567), 7 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:58,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:58,261 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:58,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 21:40:58,261 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:58,262 INFO L82 PathProgramCache]: Analyzing trace with hash -418780577, now seen corresponding path program 3 times [2021-04-28 21:40:58,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:58,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494710907] [2021-04-28 21:40:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:58,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:58,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:40:58,378 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:40:58,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:40:58,457 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:40:58,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:40:58,560 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-04-28 21:40:58,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-28 21:40:58,676 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.1 percent of original size [2021-04-28 21:40:58,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-04-28 21:40:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:58,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494710907] [2021-04-28 21:40:58,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:58,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:40:58,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042141653] [2021-04-28 21:40:58,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:40:58,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:58,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:40:58,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:40:58,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 376 [2021-04-28 21:40:58,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 81 transitions, 534 flow. Second operand has 7 states, 7 states have (on average 221.85714285714286) internal successors, (1553), 7 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:58,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:58,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 376 [2021-04-28 21:40:58,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:40:59,243 INFO L129 PetriNetUnfolder]: 130/718 cut-off events. [2021-04-28 21:40:59,243 INFO L130 PetriNetUnfolder]: For 1953/2025 co-relation queries the response was YES. [2021-04-28 21:40:59,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2485 conditions, 718 events. 130/718 cut-off events. For 1953/2025 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 6719 event pairs, 6 based on Foata normal form. 15/439 useless extension candidates. Maximal degree in co-relation 2457. Up to 229 conditions per place. [2021-04-28 21:40:59,257 INFO L132 encePairwiseOnDemand]: 369/376 looper letters, 21 selfloop transitions, 21 changer transitions 0/85 dead transitions. [2021-04-28 21:40:59,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 85 transitions, 651 flow [2021-04-28 21:40:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:40:59,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:40:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1121 transitions. [2021-04-28 21:40:59,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5962765957446808 [2021-04-28 21:40:59,265 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1121 transitions. [2021-04-28 21:40:59,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1121 transitions. [2021-04-28 21:40:59,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:40:59,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1121 transitions. [2021-04-28 21:40:59,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.2) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:59,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:59,273 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:59,273 INFO L185 Difference]: Start difference. First operand has 89 places, 81 transitions, 534 flow. Second operand 5 states and 1121 transitions. [2021-04-28 21:40:59,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 85 transitions, 651 flow [2021-04-28 21:40:59,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 615 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-04-28 21:40:59,282 INFO L241 Difference]: Finished difference. Result has 91 places, 81 transitions, 546 flow [2021-04-28 21:40:59,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=546, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2021-04-28 21:40:59,282 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -62 predicate places. [2021-04-28 21:40:59,282 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:40:59,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 81 transitions, 546 flow [2021-04-28 21:40:59,283 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 81 transitions, 546 flow [2021-04-28 21:40:59,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 81 transitions, 546 flow [2021-04-28 21:40:59,355 INFO L129 PetriNetUnfolder]: 69/437 cut-off events. [2021-04-28 21:40:59,355 INFO L130 PetriNetUnfolder]: For 1207/1265 co-relation queries the response was YES. [2021-04-28 21:40:59,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 437 events. 69/437 cut-off events. For 1207/1265 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 3682 event pairs, 30 based on Foata normal form. 11/258 useless extension candidates. Maximal degree in co-relation 1364. Up to 137 conditions per place. [2021-04-28 21:40:59,370 INFO L146 LiptonReduction]: Number of co-enabled transitions 2836 [2021-04-28 21:40:59,380 INFO L158 LiptonReduction]: Checked pairs total: 591 [2021-04-28 21:40:59,380 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:40:59,381 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-04-28 21:40:59,384 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 546 flow [2021-04-28 21:40:59,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 221.85714285714286) internal successors, (1553), 7 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:59,385 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:40:59,385 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:40:59,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 21:40:59,385 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:40:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:40:59,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2117415963, now seen corresponding path program 1 times [2021-04-28 21:40:59,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:40:59,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662711562] [2021-04-28 21:40:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:40:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:40:59,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:59,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:59,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:59,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:40:59,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:40:59,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:40:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:40:59,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662711562] [2021-04-28 21:40:59,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:40:59,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:40:59,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887081647] [2021-04-28 21:40:59,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:40:59,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:40:59,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:40:59,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:40:59,511 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 376 [2021-04-28 21:40:59,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 546 flow. Second operand has 4 states, 4 states have (on average 283.75) internal successors, (1135), 4 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:40:59,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:40:59,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 376 [2021-04-28 21:40:59,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:41:15,158 INFO L129 PetriNetUnfolder]: 89857/131448 cut-off events. [2021-04-28 21:41:15,159 INFO L130 PetriNetUnfolder]: For 33792/109789 co-relation queries the response was YES. [2021-04-28 21:41:15,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278640 conditions, 131448 events. 89857/131448 cut-off events. For 33792/109789 co-relation queries the response was YES. Maximal size of possible extension queue 25149. Compared 1305349 event pairs, 48054 based on Foata normal form. 2509/35141 useless extension candidates. Maximal degree in co-relation 278612. Up to 84295 conditions per place. [2021-04-28 21:41:16,074 INFO L132 encePairwiseOnDemand]: 356/376 looper letters, 36 selfloop transitions, 33 changer transitions 0/125 dead transitions. [2021-04-28 21:41:16,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 125 transitions, 772 flow [2021-04-28 21:41:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:41:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:41:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1481 transitions. [2021-04-28 21:41:16,090 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7877659574468086 [2021-04-28 21:41:16,090 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1481 transitions. [2021-04-28 21:41:16,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1481 transitions. [2021-04-28 21:41:16,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:41:16,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1481 transitions. [2021-04-28 21:41:16,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 296.2) internal successors, (1481), 5 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:16,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:16,100 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 376.0) internal successors, (2256), 6 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:16,100 INFO L185 Difference]: Start difference. First operand has 91 places, 81 transitions, 546 flow. Second operand 5 states and 1481 transitions. [2021-04-28 21:41:16,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 125 transitions, 772 flow [2021-04-28 21:41:16,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 125 transitions, 742 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-04-28 21:41:16,145 INFO L241 Difference]: Finished difference. Result has 95 places, 112 transitions, 770 flow [2021-04-28 21:41:16,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=770, PETRI_PLACES=95, PETRI_TRANSITIONS=112} [2021-04-28 21:41:16,145 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -58 predicate places. [2021-04-28 21:41:16,145 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:41:16,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 112 transitions, 770 flow [2021-04-28 21:41:16,146 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 112 transitions, 770 flow [2021-04-28 21:41:16,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 112 transitions, 770 flow [2021-04-28 21:41:29,497 INFO L129 PetriNetUnfolder]: 79113/117805 cut-off events. [2021-04-28 21:41:29,497 INFO L130 PetriNetUnfolder]: For 66263/501588 co-relation queries the response was YES. [2021-04-28 21:41:30,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352224 conditions, 117805 events. 79113/117805 cut-off events. For 66263/501588 co-relation queries the response was YES. Maximal size of possible extension queue 21931. Compared 1204305 event pairs, 45119 based on Foata normal form. 112/31805 useless extension candidates. Maximal degree in co-relation 352196. Up to 110645 conditions per place. [2021-04-28 21:41:31,392 INFO L146 LiptonReduction]: Number of co-enabled transitions 4290 [2021-04-28 21:41:31,602 INFO L158 LiptonReduction]: Checked pairs total: 688 [2021-04-28 21:41:31,603 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:41:31,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15458 [2021-04-28 21:41:31,607 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 112 transitions, 770 flow [2021-04-28 21:41:31,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 283.75) internal successors, (1135), 4 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:31,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:41:31,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:41:31,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 21:41:31,608 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:41:31,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:41:31,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1434674503, now seen corresponding path program 1 times [2021-04-28 21:41:31,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:41:31,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385953270] [2021-04-28 21:41:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:41:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:41:31,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:41:31,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:41:31,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:41:31,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:41:31,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:41:31,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:41:31,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:41:31,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:41:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:41:31,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385953270] [2021-04-28 21:41:31,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:41:31,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:41:31,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586955206] [2021-04-28 21:41:31,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:41:31,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:41:31,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:41:31,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:41:31,769 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 376 [2021-04-28 21:41:31,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 112 transitions, 770 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:31,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:41:31,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 376 [2021-04-28 21:41:31,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:41:51,735 INFO L129 PetriNetUnfolder]: 98221/151182 cut-off events. [2021-04-28 21:41:51,735 INFO L130 PetriNetUnfolder]: For 119806/4159398 co-relation queries the response was YES. [2021-04-28 21:41:52,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 591606 conditions, 151182 events. 98221/151182 cut-off events. For 119806/4159398 co-relation queries the response was YES. Maximal size of possible extension queue 32658. Compared 1591133 event pairs, 18837 based on Foata normal form. 2980/45632 useless extension candidates. Maximal degree in co-relation 591576. Up to 141020 conditions per place. [2021-04-28 21:41:52,934 INFO L132 encePairwiseOnDemand]: 356/376 looper letters, 37 selfloop transitions, 64 changer transitions 3/157 dead transitions. [2021-04-28 21:41:52,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 157 transitions, 1221 flow [2021-04-28 21:41:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:41:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:41:52,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2077 transitions. [2021-04-28 21:41:52,945 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7891337386018237 [2021-04-28 21:41:52,945 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2077 transitions. [2021-04-28 21:41:52,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2077 transitions. [2021-04-28 21:41:52,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:41:52,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2077 transitions. [2021-04-28 21:41:52,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 296.7142857142857) internal successors, (2077), 7 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:52,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:52,959 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:41:52,959 INFO L185 Difference]: Start difference. First operand has 95 places, 112 transitions, 770 flow. Second operand 7 states and 2077 transitions. [2021-04-28 21:41:52,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 157 transitions, 1221 flow [2021-04-28 21:41:53,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 157 transitions, 1221 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:41:53,561 INFO L241 Difference]: Finished difference. Result has 104 places, 140 transitions, 1190 flow [2021-04-28 21:41:53,562 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1190, PETRI_PLACES=104, PETRI_TRANSITIONS=140} [2021-04-28 21:41:53,562 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -49 predicate places. [2021-04-28 21:41:53,562 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:41:53,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 140 transitions, 1190 flow [2021-04-28 21:41:53,563 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 140 transitions, 1190 flow [2021-04-28 21:41:53,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 140 transitions, 1190 flow [2021-04-28 21:42:11,835 INFO L129 PetriNetUnfolder]: 89060/139241 cut-off events. [2021-04-28 21:42:11,836 INFO L130 PetriNetUnfolder]: For 339366/2385202 co-relation queries the response was YES. [2021-04-28 21:42:12,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 670240 conditions, 139241 events. 89060/139241 cut-off events. For 339366/2385202 co-relation queries the response was YES. Maximal size of possible extension queue 28690. Compared 1546392 event pairs, 18524 based on Foata normal form. 221/37908 useless extension candidates. Maximal degree in co-relation 670207. Up to 132797 conditions per place. [2021-04-28 21:42:14,632 INFO L146 LiptonReduction]: Number of co-enabled transitions 5628 [2021-04-28 21:42:14,798 INFO L158 LiptonReduction]: Checked pairs total: 918 [2021-04-28 21:42:14,798 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:42:14,798 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21236 [2021-04-28 21:42:14,800 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 140 transitions, 1190 flow [2021-04-28 21:42:14,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:42:14,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:42:14,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:42:14,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 21:42:14,801 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:42:14,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:42:14,802 INFO L82 PathProgramCache]: Analyzing trace with hash 400672544, now seen corresponding path program 1 times [2021-04-28 21:42:14,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:42:14,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857290157] [2021-04-28 21:42:14,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:42:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:42:14,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:42:14,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:42:14,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:42:14,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:42:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:42:14,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857290157] [2021-04-28 21:42:14,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:42:14,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:42:14,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613565486] [2021-04-28 21:42:14,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:42:14,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:42:14,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:42:14,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:42:14,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 376 [2021-04-28 21:42:14,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 140 transitions, 1190 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:42:14,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:42:14,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 376 [2021-04-28 21:42:14,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:42:51,561 INFO L129 PetriNetUnfolder]: 160386/242343 cut-off events. [2021-04-28 21:42:51,561 INFO L130 PetriNetUnfolder]: For 661486/4823404 co-relation queries the response was YES. [2021-04-28 21:42:53,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1170071 conditions, 242343 events. 160386/242343 cut-off events. For 661486/4823404 co-relation queries the response was YES. Maximal size of possible extension queue 51513. Compared 2603440 event pairs, 35730 based on Foata normal form. 577/65036 useless extension candidates. Maximal degree in co-relation 1170036. Up to 233048 conditions per place. [2021-04-28 21:42:53,548 INFO L132 encePairwiseOnDemand]: 373/376 looper letters, 3 selfloop transitions, 3 changer transitions 0/140 dead transitions. [2021-04-28 21:42:53,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 140 transitions, 1202 flow [2021-04-28 21:42:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:42:53,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:42:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2021-04-28 21:42:53,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7313829787234043 [2021-04-28 21:42:53,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2021-04-28 21:42:53,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2021-04-28 21:42:53,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:42:53,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2021-04-28 21:42:53,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:42:53,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:42:53,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:42:53,566 INFO L185 Difference]: Start difference. First operand has 104 places, 140 transitions, 1190 flow. Second operand 3 states and 825 transitions. [2021-04-28 21:42:53,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 140 transitions, 1202 flow [2021-04-28 21:43:26,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 140 transitions, 1040 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 21:43:26,871 INFO L241 Difference]: Finished difference. Result has 104 places, 140 transitions, 1039 flow [2021-04-28 21:43:26,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1039, PETRI_PLACES=104, PETRI_TRANSITIONS=140} [2021-04-28 21:43:26,872 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -49 predicate places. [2021-04-28 21:43:26,872 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:43:26,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 140 transitions, 1039 flow [2021-04-28 21:43:26,873 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 140 transitions, 1039 flow [2021-04-28 21:43:26,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 140 transitions, 1039 flow [2021-04-28 21:44:04,137 INFO L129 PetriNetUnfolder]: 155888/235360 cut-off events. [2021-04-28 21:44:04,138 INFO L130 PetriNetUnfolder]: For 478110/998342 co-relation queries the response was YES. [2021-04-28 21:44:05,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1077462 conditions, 235360 events. 155888/235360 cut-off events. For 478110/998342 co-relation queries the response was YES. Maximal size of possible extension queue 48093. Compared 2609653 event pairs, 34682 based on Foata normal form. 277/63208 useless extension candidates. Maximal degree in co-relation 1077429. Up to 203284 conditions per place. [2021-04-28 21:44:08,464 INFO L146 LiptonReduction]: Number of co-enabled transitions 5626 [2021-04-28 21:44:08,894 INFO L158 LiptonReduction]: Checked pairs total: 918 [2021-04-28 21:44:08,894 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:44:08,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42022 [2021-04-28 21:44:08,896 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 140 transitions, 1039 flow [2021-04-28 21:44:08,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:44:08,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:44:08,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:44:08,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-28 21:44:08,897 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:44:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:44:08,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1631303677, now seen corresponding path program 1 times [2021-04-28 21:44:08,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:44:08,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945093230] [2021-04-28 21:44:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:44:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:44:08,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:44:08,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:44:08,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:44:08,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:44:09,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:44:09,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:44:09,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:44:09,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:44:09,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:44:09,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:44:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:44:09,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945093230] [2021-04-28 21:44:09,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:44:09,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:44:09,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361623540] [2021-04-28 21:44:09,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:44:09,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:44:09,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:44:09,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:44:09,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 376 [2021-04-28 21:44:09,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 140 transitions, 1039 flow. Second operand has 6 states, 6 states have (on average 283.8333333333333) internal successors, (1703), 6 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:44:09,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:44:09,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 376 [2021-04-28 21:44:09,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:44:46,623 INFO L129 PetriNetUnfolder]: 161613/257739 cut-off events. [2021-04-28 21:44:46,623 INFO L130 PetriNetUnfolder]: For 425956/6332436 co-relation queries the response was YES. [2021-04-28 21:44:48,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1420701 conditions, 257739 events. 161613/257739 cut-off events. For 425956/6332436 co-relation queries the response was YES. Maximal size of possible extension queue 58752. Compared 2970583 event pairs, 5400 based on Foata normal form. 4705/76827 useless extension candidates. Maximal degree in co-relation 1420666. Up to 219988 conditions per place. [2021-04-28 21:44:48,500 INFO L132 encePairwiseOnDemand]: 356/376 looper letters, 24 selfloop transitions, 95 changer transitions 12/179 dead transitions. [2021-04-28 21:44:48,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 179 transitions, 1634 flow [2021-04-28 21:44:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:44:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:44:48,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2673 transitions. [2021-04-28 21:44:48,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7898936170212766 [2021-04-28 21:44:48,510 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2673 transitions. [2021-04-28 21:44:48,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2673 transitions. [2021-04-28 21:44:48,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:44:48,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2673 transitions. [2021-04-28 21:44:48,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:44:48,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 376.0) internal successors, (3760), 10 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:44:48,525 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 376.0) internal successors, (3760), 10 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:44:48,525 INFO L185 Difference]: Start difference. First operand has 104 places, 140 transitions, 1039 flow. Second operand 9 states and 2673 transitions. [2021-04-28 21:44:48,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 179 transitions, 1634 flow [2021-04-28 21:45:16,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 179 transitions, 1580 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-04-28 21:45:16,162 INFO L241 Difference]: Finished difference. Result has 109 places, 164 transitions, 1499 flow [2021-04-28 21:45:16,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1499, PETRI_PLACES=109, PETRI_TRANSITIONS=164} [2021-04-28 21:45:16,163 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -44 predicate places. [2021-04-28 21:45:16,163 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:45:16,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 164 transitions, 1499 flow [2021-04-28 21:45:16,163 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 164 transitions, 1499 flow [2021-04-28 21:45:16,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 164 transitions, 1499 flow [2021-04-28 21:45:43,692 INFO L129 PetriNetUnfolder]: 113784/194588 cut-off events. [2021-04-28 21:45:43,692 INFO L130 PetriNetUnfolder]: For 810963/2140501 co-relation queries the response was YES. [2021-04-28 21:45:45,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1179265 conditions, 194588 events. 113784/194588 cut-off events. For 810963/2140501 co-relation queries the response was YES. Maximal size of possible extension queue 46941. Compared 2520560 event pairs, 5400 based on Foata normal form. 67/50380 useless extension candidates. Maximal degree in co-relation 1179231. Up to 162640 conditions per place. [2021-04-28 21:45:47,629 INFO L146 LiptonReduction]: Number of co-enabled transitions 6184 [2021-04-28 21:45:47,933 INFO L158 LiptonReduction]: Checked pairs total: 860 [2021-04-28 21:45:47,933 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:45:47,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31770 [2021-04-28 21:45:47,934 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 164 transitions, 1499 flow [2021-04-28 21:45:47,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 283.8333333333333) internal successors, (1703), 6 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:45:47,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:45:47,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:45:47,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-28 21:45:47,936 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:45:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:45:47,936 INFO L82 PathProgramCache]: Analyzing trace with hash 270414444, now seen corresponding path program 1 times [2021-04-28 21:45:47,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:45:47,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421584308] [2021-04-28 21:45:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:45:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:45:47,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:45:47,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:45:47,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:45:47,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:45:47,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:45:48,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:45:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:45:48,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421584308] [2021-04-28 21:45:48,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:45:48,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:45:48,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578509710] [2021-04-28 21:45:48,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:45:48,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:45:48,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:45:48,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:45:48,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 376 [2021-04-28 21:45:48,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 164 transitions, 1499 flow. Second operand has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:45:48,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:45:48,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 376 [2021-04-28 21:45:48,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:46:44,975 INFO L129 PetriNetUnfolder]: 191649/322691 cut-off events. [2021-04-28 21:46:44,976 INFO L130 PetriNetUnfolder]: For 1799613/5623524 co-relation queries the response was YES. [2021-04-28 21:46:47,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1957031 conditions, 322691 events. 191649/322691 cut-off events. For 1799613/5623524 co-relation queries the response was YES. Maximal size of possible extension queue 77040. Compared 4200119 event pairs, 10800 based on Foata normal form. 400/86035 useless extension candidates. Maximal degree in co-relation 1956995. Up to 270046 conditions per place. [2021-04-28 21:46:48,110 INFO L132 encePairwiseOnDemand]: 373/376 looper letters, 4 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2021-04-28 21:46:48,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 166 transitions, 1533 flow [2021-04-28 21:46:48,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:46:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:46:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1039 transitions. [2021-04-28 21:46:48,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6908244680851063 [2021-04-28 21:46:48,116 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1039 transitions. [2021-04-28 21:46:48,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1039 transitions. [2021-04-28 21:46:48,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:46:48,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1039 transitions. [2021-04-28 21:46:48,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:46:48,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:46:48,122 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 376.0) internal successors, (1880), 5 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:46:48,123 INFO L185 Difference]: Start difference. First operand has 109 places, 164 transitions, 1499 flow. Second operand 4 states and 1039 transitions. [2021-04-28 21:46:48,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 166 transitions, 1533 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown