/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/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:18:05,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:18:05,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:18:05,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:18:05,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:18:05,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:18:05,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:18:05,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:18:05,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:18:05,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:18:05,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:18:05,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:18:05,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:18:05,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:18:05,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:18:05,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:18:05,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:18:05,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:18:05,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:18:05,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:18:05,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:18:05,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:18:05,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:18:05,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:18:05,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:18:05,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:18:05,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:18:05,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:18:05,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:18:05,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:18:05,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:18:05,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:18:05,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:18:05,707 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:18:05,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:18:05,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:18:05,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:18:05,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:18:05,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:18:05,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:18:05,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:18:05,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:18:05,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:18:05,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:18:05,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:18:05,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:18:05,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:18:05,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:18:05,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:18:05,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:18:05,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:18:05,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:18:05,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:18:05,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:18:05,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:18:05,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:18:05,715 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:18:05,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:18:05,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:18:05,716 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:18:06,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:18:06,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:18:06,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:18:06,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:18:06,172 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:18:06,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-04-29 00:18:06,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc5f03fa/48d65bd592a34f398dccbe2e2d4c88d1/FLAGd2a0afb00 [2021-04-29 00:18:06,970 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:18:06,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-04-29 00:18:06,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc5f03fa/48d65bd592a34f398dccbe2e2d4c88d1/FLAGd2a0afb00 [2021-04-29 00:18:07,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc5f03fa/48d65bd592a34f398dccbe2e2d4c88d1 [2021-04-29 00:18:07,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:18:07,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:18:07,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:18:07,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:18:07,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:18:07,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c759c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07, skipping insertion in model container [2021-04-29 00:18:07,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:18:07,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:18:07,499 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/safe021_tso.oepc.i[950,963] [2021-04-29 00:18:07,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:18:07,686 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:18:07,701 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/safe021_tso.oepc.i[950,963] [2021-04-29 00:18:07,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:18:07,865 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:18:07,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07 WrapperNode [2021-04-29 00:18:07,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:18:07,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:18:07,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:18:07,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:18:07,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:18:07,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:18:07,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:18:07,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:18:07,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:07,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... [2021-04-29 00:18:08,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:18:08,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:18:08,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:18:08,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:18:08,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:18:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:18:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:18:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:18:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:18:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:18:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:18:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:18:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:18:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:18:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:18:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:18:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:18:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:18:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:18:08,121 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:18:08,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:18:08,530 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:18:08,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:18:08 BoogieIcfgContainer [2021-04-29 00:18:08,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:18:08,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:18:08,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:18:08,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:18:08,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:18:07" (1/3) ... [2021-04-29 00:18:08,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b19abee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:18:08, skipping insertion in model container [2021-04-29 00:18:08,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:18:07" (2/3) ... [2021-04-29 00:18:08,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b19abee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:18:08, skipping insertion in model container [2021-04-29 00:18:08,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:18:08" (3/3) ... [2021-04-29 00:18:08,541 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2021-04-29 00:18:08,550 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:18:08,556 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:18:08,557 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:18:08,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,602 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,602 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,603 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,603 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,604 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,608 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,608 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,609 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,609 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,609 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,610 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,610 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,610 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,612 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,612 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,626 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,627 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,627 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,629 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:18:08,632 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:18:08,663 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:18:08,697 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:18:08,697 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:18:08,698 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:18:08,698 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:18:08,698 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:18:08,698 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:18:08,698 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:18:08,698 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:18:08,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:18:08,775 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-29 00:18:08,776 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:18:08,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:18:08,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:18:08,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-29 00:18:08,790 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:08,813 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:18:08,817 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:18:08,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-29 00:18:08,840 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-29 00:18:08,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:18:08,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:18:08,844 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:18:14,275 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:18:14,448 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:18:14,641 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:18:14,827 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:18:14,999 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:18:15,175 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:18:15,338 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:18:15,521 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:18:15,676 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:18:15,854 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:18:16,035 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:18:16,216 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:18:16,379 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:18:16,765 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:18:16,999 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:18:17,275 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:18:17,526 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:18:17,642 INFO L158 LiptonReduction]: Checked pairs total: 6680 [2021-04-29 00:18:17,643 INFO L160 LiptonReduction]: Total number of compositions: 92 [2021-04-29 00:18:17,647 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8858 [2021-04-29 00:18:17,667 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:18:17,667 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:18:17,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:17,668 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:17,669 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:17,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:17,675 INFO L82 PathProgramCache]: Analyzing trace with hash 571592031, now seen corresponding path program 1 times [2021-04-29 00:18:17,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:17,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73142716] [2021-04-29 00:18:17,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:17,995 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:18:17,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:18,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73142716] [2021-04-29 00:18:18,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:18,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:18:18,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623610291] [2021-04-29 00:18:18,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:18:18,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:18,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:18:18,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:18:18,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 167 [2021-04-29 00:18:18,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:18,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 167 [2021-04-29 00:18:18,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:18,206 INFO L129 PetriNetUnfolder]: 139/513 cut-off events. [2021-04-29 00:18:18,206 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:18:18,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 513 events. 139/513 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 4077 event pairs, 40 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 746. Up to 186 conditions per place. [2021-04-29 00:18:18,212 INFO L132 encePairwiseOnDemand]: 150/167 looper letters, 5 selfloop transitions, 5 changer transitions 35/76 dead transitions. [2021-04-29 00:18:18,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 219 flow [2021-04-29 00:18:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:18:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:18:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2021-04-29 00:18:18,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7265469061876247 [2021-04-29 00:18:18,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2021-04-29 00:18:18,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2021-04-29 00:18:18,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:18,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2021-04-29 00:18:18,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,254 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 364 transitions. [2021-04-29 00:18:18,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 219 flow [2021-04-29 00:18:18,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 76 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:18:18,264 INFO L241 Difference]: Finished difference. Result has 79 places, 41 transitions, 118 flow [2021-04-29 00:18:18,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=79, PETRI_TRANSITIONS=41} [2021-04-29 00:18:18,270 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:18:18,270 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:18,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 41 transitions, 118 flow [2021-04-29 00:18:18,273 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 41 transitions, 118 flow [2021-04-29 00:18:18,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 41 transitions, 118 flow [2021-04-29 00:18:18,296 INFO L129 PetriNetUnfolder]: 24/137 cut-off events. [2021-04-29 00:18:18,296 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-29 00:18:18,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 137 events. 24/137 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 804 event pairs, 10 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 218. Up to 45 conditions per place. [2021-04-29 00:18:18,304 INFO L146 LiptonReduction]: Number of co-enabled transitions 892 [2021-04-29 00:18:18,317 INFO L158 LiptonReduction]: Checked pairs total: 258 [2021-04-29 00:18:18,317 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:18,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 00:18:18,320 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2021-04-29 00:18:18,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:18,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:18,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:18:18,321 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:18,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:18,325 INFO L82 PathProgramCache]: Analyzing trace with hash 539482322, now seen corresponding path program 1 times [2021-04-29 00:18:18,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:18,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518813508] [2021-04-29 00:18:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:18,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:18,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:18,420 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:18:18,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:18,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518813508] [2021-04-29 00:18:18,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:18,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:18:18,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793721991] [2021-04-29 00:18:18,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:18:18,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:18,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:18:18,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:18:18,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 167 [2021-04-29 00:18:18,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:18,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 167 [2021-04-29 00:18:18,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:18,494 INFO L129 PetriNetUnfolder]: 21/121 cut-off events. [2021-04-29 00:18:18,495 INFO L130 PetriNetUnfolder]: For 24/47 co-relation queries the response was YES. [2021-04-29 00:18:18,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 121 events. 21/121 cut-off events. For 24/47 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 600 event pairs, 4 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 243. Up to 40 conditions per place. [2021-04-29 00:18:18,497 INFO L132 encePairwiseOnDemand]: 161/167 looper letters, 6 selfloop transitions, 6 changer transitions 1/43 dead transitions. [2021-04-29 00:18:18,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 43 transitions, 154 flow [2021-04-29 00:18:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:18:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:18:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-04-29 00:18:18,508 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6811377245508982 [2021-04-29 00:18:18,508 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-04-29 00:18:18,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-04-29 00:18:18,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:18,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-04-29 00:18:18,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 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) [2021-04-29 00:18:18,518 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 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) [2021-04-29 00:18:18,518 INFO L185 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 455 transitions. [2021-04-29 00:18:18,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 43 transitions, 154 flow [2021-04-29 00:18:18,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 43 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:18:18,525 INFO L241 Difference]: Finished difference. Result has 52 places, 42 transitions, 144 flow [2021-04-29 00:18:18,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2021-04-29 00:18:18,526 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -26 predicate places. [2021-04-29 00:18:18,526 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:18,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 42 transitions, 144 flow [2021-04-29 00:18:18,528 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 42 transitions, 144 flow [2021-04-29 00:18:18,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 144 flow [2021-04-29 00:18:18,547 INFO L129 PetriNetUnfolder]: 21/133 cut-off events. [2021-04-29 00:18:18,547 INFO L130 PetriNetUnfolder]: For 44/46 co-relation queries the response was YES. [2021-04-29 00:18:18,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 133 events. 21/133 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 734 event pairs, 7 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 237. Up to 40 conditions per place. [2021-04-29 00:18:18,554 INFO L146 LiptonReduction]: Number of co-enabled transitions 902 [2021-04-29 00:18:18,568 INFO L158 LiptonReduction]: Checked pairs total: 287 [2021-04-29 00:18:18,568 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:18,568 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-29 00:18:18,570 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 42 transitions, 144 flow [2021-04-29 00:18:18,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,571 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:18,571 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:18,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:18:18,571 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:18,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:18,572 INFO L82 PathProgramCache]: Analyzing trace with hash 539482446, now seen corresponding path program 1 times [2021-04-29 00:18:18,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:18,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712114356] [2021-04-29 00:18:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:18,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:18,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:18,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712114356] [2021-04-29 00:18:18,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:18,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:18:18,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573409971] [2021-04-29 00:18:18,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:18:18,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:18,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:18:18,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:18:18,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 167 [2021-04-29 00:18:18,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:18,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 167 [2021-04-29 00:18:18,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:18,653 INFO L129 PetriNetUnfolder]: 15/104 cut-off events. [2021-04-29 00:18:18,654 INFO L130 PetriNetUnfolder]: For 69/85 co-relation queries the response was YES. [2021-04-29 00:18:18,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 104 events. 15/104 cut-off events. For 69/85 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 502 event pairs, 3 based on Foata normal form. 3/66 useless extension candidates. Maximal degree in co-relation 210. Up to 32 conditions per place. [2021-04-29 00:18:18,655 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 6 selfloop transitions, 5 changer transitions 0/45 dead transitions. [2021-04-29 00:18:18,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 45 transitions, 184 flow [2021-04-29 00:18:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:18:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:18:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2021-04-29 00:18:18,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7684630738522954 [2021-04-29 00:18:18,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2021-04-29 00:18:18,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2021-04-29 00:18:18,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:18,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2021-04-29 00:18:18,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,663 INFO L185 Difference]: Start difference. First operand has 51 places, 42 transitions, 144 flow. Second operand 3 states and 385 transitions. [2021-04-29 00:18:18,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 45 transitions, 184 flow [2021-04-29 00:18:18,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 181 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:18:18,666 INFO L241 Difference]: Finished difference. Result has 53 places, 45 transitions, 182 flow [2021-04-29 00:18:18,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2021-04-29 00:18:18,666 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -25 predicate places. [2021-04-29 00:18:18,667 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:18,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 45 transitions, 182 flow [2021-04-29 00:18:18,667 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 45 transitions, 182 flow [2021-04-29 00:18:18,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 45 transitions, 182 flow [2021-04-29 00:18:18,683 INFO L129 PetriNetUnfolder]: 15/104 cut-off events. [2021-04-29 00:18:18,683 INFO L130 PetriNetUnfolder]: For 54/65 co-relation queries the response was YES. [2021-04-29 00:18:18,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 104 events. 15/104 cut-off events. For 54/65 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 540 event pairs, 3 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 213. Up to 32 conditions per place. [2021-04-29 00:18:18,687 INFO L146 LiptonReduction]: Number of co-enabled transitions 990 [2021-04-29 00:18:18,696 INFO L158 LiptonReduction]: Checked pairs total: 320 [2021-04-29 00:18:18,696 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:18,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-04-29 00:18:18,698 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 182 flow [2021-04-29 00:18:18,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:18,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:18,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:18:18,700 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:18,700 INFO L82 PathProgramCache]: Analyzing trace with hash -608890513, now seen corresponding path program 1 times [2021-04-29 00:18:18,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:18,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782418119] [2021-04-29 00:18:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:18,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:18,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:18,788 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:18:18,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:18,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782418119] [2021-04-29 00:18:18,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:18,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:18:18,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685438818] [2021-04-29 00:18:18,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:18:18,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:18,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:18:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:18:18,805 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:18:18,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:18,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:18:18,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:18,866 INFO L129 PetriNetUnfolder]: 35/173 cut-off events. [2021-04-29 00:18:18,867 INFO L130 PetriNetUnfolder]: For 156/199 co-relation queries the response was YES. [2021-04-29 00:18:18,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 173 events. 35/173 cut-off events. For 156/199 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 966 event pairs, 0 based on Foata normal form. 11/121 useless extension candidates. Maximal degree in co-relation 414. Up to 46 conditions per place. [2021-04-29 00:18:18,869 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 12 selfloop transitions, 19 changer transitions 0/60 dead transitions. [2021-04-29 00:18:18,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 348 flow [2021-04-29 00:18:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:18:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:18:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 561 transitions. [2021-04-29 00:18:18,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6718562874251497 [2021-04-29 00:18:18,874 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 561 transitions. [2021-04-29 00:18:18,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 561 transitions. [2021-04-29 00:18:18,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:18,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 561 transitions. [2021-04-29 00:18:18,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,881 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,881 INFO L185 Difference]: Start difference. First operand has 53 places, 45 transitions, 182 flow. Second operand 5 states and 561 transitions. [2021-04-29 00:18:18,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 348 flow [2021-04-29 00:18:18,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 339 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:18:18,890 INFO L241 Difference]: Finished difference. Result has 60 places, 57 transitions, 353 flow [2021-04-29 00:18:18,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=353, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2021-04-29 00:18:18,891 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -18 predicate places. [2021-04-29 00:18:18,891 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:18,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 57 transitions, 353 flow [2021-04-29 00:18:18,893 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 57 transitions, 353 flow [2021-04-29 00:18:18,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 57 transitions, 353 flow [2021-04-29 00:18:18,914 INFO L129 PetriNetUnfolder]: 27/164 cut-off events. [2021-04-29 00:18:18,914 INFO L130 PetriNetUnfolder]: For 221/238 co-relation queries the response was YES. [2021-04-29 00:18:18,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 164 events. 27/164 cut-off events. For 221/238 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 979 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 438. Up to 42 conditions per place. [2021-04-29 00:18:18,920 INFO L146 LiptonReduction]: Number of co-enabled transitions 1366 [2021-04-29 00:18:18,933 INFO L158 LiptonReduction]: Checked pairs total: 318 [2021-04-29 00:18:18,934 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:18,934 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 00:18:18,938 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 353 flow [2021-04-29 00:18:18,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:18,938 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:18,939 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:18,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:18:18,939 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:18,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:18,939 INFO L82 PathProgramCache]: Analyzing trace with hash -456837373, now seen corresponding path program 2 times [2021-04-29 00:18:18,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:18,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310627275] [2021-04-29 00:18:18,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:19,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:19,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:19,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:19,050 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:18:19,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:19,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310627275] [2021-04-29 00:18:19,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:19,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:18:19,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208381978] [2021-04-29 00:18:19,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:18:19,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:19,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:18:19,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:18:19,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:18:19,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 353 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:19,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:19,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:18:19,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:19,128 INFO L129 PetriNetUnfolder]: 24/167 cut-off events. [2021-04-29 00:18:19,128 INFO L130 PetriNetUnfolder]: For 386/441 co-relation queries the response was YES. [2021-04-29 00:18:19,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 167 events. 24/167 cut-off events. For 386/441 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1012 event pairs, 2 based on Foata normal form. 14/114 useless extension candidates. Maximal degree in co-relation 492. Up to 40 conditions per place. [2021-04-29 00:18:19,130 INFO L132 encePairwiseOnDemand]: 161/167 looper letters, 7 selfloop transitions, 7 changer transitions 20/62 dead transitions. [2021-04-29 00:18:19,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 475 flow [2021-04-29 00:18:19,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:18:19,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:18:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 555 transitions. [2021-04-29 00:18:19,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6646706586826348 [2021-04-29 00:18:19,133 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 555 transitions. [2021-04-29 00:18:19,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 555 transitions. [2021-04-29 00:18:19,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:19,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 555 transitions. [2021-04-29 00:18:19,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:19,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:19,141 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:19,143 INFO L185 Difference]: Start difference. First operand has 60 places, 57 transitions, 353 flow. Second operand 5 states and 555 transitions. [2021-04-29 00:18:19,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 475 flow [2021-04-29 00:18:19,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 475 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:18:19,149 INFO L241 Difference]: Finished difference. Result has 66 places, 42 transitions, 226 flow [2021-04-29 00:18:19,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=66, PETRI_TRANSITIONS=42} [2021-04-29 00:18:19,149 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -12 predicate places. [2021-04-29 00:18:19,149 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:19,149 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 42 transitions, 226 flow [2021-04-29 00:18:19,150 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 42 transitions, 226 flow [2021-04-29 00:18:19,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 42 transitions, 226 flow [2021-04-29 00:18:19,162 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2021-04-29 00:18:19,162 INFO L130 PetriNetUnfolder]: For 140/142 co-relation queries the response was YES. [2021-04-29 00:18:19,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 84 events. 6/84 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 391 event pairs, 2 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 216. Up to 16 conditions per place. [2021-04-29 00:18:19,165 INFO L146 LiptonReduction]: Number of co-enabled transitions 836 [2021-04-29 00:18:19,173 INFO L158 LiptonReduction]: Checked pairs total: 131 [2021-04-29 00:18:19,173 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:19,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 00:18:19,181 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 226 flow [2021-04-29 00:18:19,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:19,186 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:19,186 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:19,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:18:19,187 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:19,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1248607601, now seen corresponding path program 1 times [2021-04-29 00:18:19,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:19,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755435513] [2021-04-29 00:18:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:19,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:19,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:19,289 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:18:19,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:19,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755435513] [2021-04-29 00:18:19,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:19,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:18:19,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861700683] [2021-04-29 00:18:19,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:18:19,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:19,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:18:19,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:18:19,300 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-29 00:18:19,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:19,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:19,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-29 00:18:19,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:20,312 INFO L129 PetriNetUnfolder]: 4614/7405 cut-off events. [2021-04-29 00:18:20,312 INFO L130 PetriNetUnfolder]: For 5594/6955 co-relation queries the response was YES. [2021-04-29 00:18:20,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15664 conditions, 7405 events. 4614/7405 cut-off events. For 5594/6955 co-relation queries the response was YES. Maximal size of possible extension queue 1818. Compared 61571 event pairs, 2142 based on Foata normal form. 87/1990 useless extension candidates. Maximal degree in co-relation 15639. Up to 4858 conditions per place. [2021-04-29 00:18:20,375 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 26 selfloop transitions, 24 changer transitions 6/77 dead transitions. [2021-04-29 00:18:20,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 77 transitions, 408 flow [2021-04-29 00:18:20,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:18:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:18:20,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 581 transitions. [2021-04-29 00:18:20,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6958083832335329 [2021-04-29 00:18:20,381 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 581 transitions. [2021-04-29 00:18:20,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 581 transitions. [2021-04-29 00:18:20,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:20,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 581 transitions. [2021-04-29 00:18:20,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:20,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:20,390 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:20,390 INFO L185 Difference]: Start difference. First operand has 65 places, 42 transitions, 226 flow. Second operand 5 states and 581 transitions. [2021-04-29 00:18:20,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 77 transitions, 408 flow [2021-04-29 00:18:20,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 77 transitions, 345 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-04-29 00:18:20,400 INFO L241 Difference]: Finished difference. Result has 62 places, 64 transitions, 348 flow [2021-04-29 00:18:20,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=348, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2021-04-29 00:18:20,401 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -16 predicate places. [2021-04-29 00:18:20,401 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:20,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 64 transitions, 348 flow [2021-04-29 00:18:20,402 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 64 transitions, 348 flow [2021-04-29 00:18:20,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 64 transitions, 348 flow [2021-04-29 00:18:21,403 INFO L129 PetriNetUnfolder]: 3922/6528 cut-off events. [2021-04-29 00:18:21,403 INFO L130 PetriNetUnfolder]: For 1825/4701 co-relation queries the response was YES. [2021-04-29 00:18:21,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18546 conditions, 6528 events. 3922/6528 cut-off events. For 1825/4701 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 55194 event pairs, 2013 based on Foata normal form. 1/1810 useless extension candidates. Maximal degree in co-relation 18527. Up to 6200 conditions per place. [2021-04-29 00:18:21,515 INFO L146 LiptonReduction]: Number of co-enabled transitions 1014 [2021-04-29 00:18:21,535 INFO L158 LiptonReduction]: Checked pairs total: 172 [2021-04-29 00:18:21,535 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:21,536 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1135 [2021-04-29 00:18:21,543 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 348 flow [2021-04-29 00:18:21,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:21,544 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:21,544 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:21,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:18:21,545 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1667982486, now seen corresponding path program 1 times [2021-04-29 00:18:21,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:21,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249983350] [2021-04-29 00:18:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:21,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:21,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:21,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:21,657 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:18:21,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:21,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249983350] [2021-04-29 00:18:21,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:21,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:18:21,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589806403] [2021-04-29 00:18:21,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:18:21,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:21,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:18:21,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:18:21,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-29 00:18:21,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:21,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:21,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-29 00:18:21,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:22,836 INFO L129 PetriNetUnfolder]: 4173/7579 cut-off events. [2021-04-29 00:18:22,836 INFO L130 PetriNetUnfolder]: For 3328/19767 co-relation queries the response was YES. [2021-04-29 00:18:22,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28806 conditions, 7579 events. 4173/7579 cut-off events. For 3328/19767 co-relation queries the response was YES. Maximal size of possible extension queue 2145. Compared 72115 event pairs, 468 based on Foata normal form. 134/2453 useless extension candidates. Maximal degree in co-relation 28785. Up to 7010 conditions per place. [2021-04-29 00:18:22,893 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 21 selfloop transitions, 46 changer transitions 12/100 dead transitions. [2021-04-29 00:18:22,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 701 flow [2021-04-29 00:18:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:18:22,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:18:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 812 transitions. [2021-04-29 00:18:22,897 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6946107784431138 [2021-04-29 00:18:22,897 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 812 transitions. [2021-04-29 00:18:22,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 812 transitions. [2021-04-29 00:18:22,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:22,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 812 transitions. [2021-04-29 00:18:22,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:22,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:22,905 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:22,905 INFO L185 Difference]: Start difference. First operand has 62 places, 64 transitions, 348 flow. Second operand 7 states and 812 transitions. [2021-04-29 00:18:22,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 701 flow [2021-04-29 00:18:22,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 100 transitions, 693 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:18:22,943 INFO L241 Difference]: Finished difference. Result has 70 places, 86 transitions, 646 flow [2021-04-29 00:18:22,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=646, PETRI_PLACES=70, PETRI_TRANSITIONS=86} [2021-04-29 00:18:22,944 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -8 predicate places. [2021-04-29 00:18:22,944 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:22,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 86 transitions, 646 flow [2021-04-29 00:18:22,945 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 86 transitions, 646 flow [2021-04-29 00:18:22,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 86 transitions, 646 flow [2021-04-29 00:18:23,537 INFO L129 PetriNetUnfolder]: 2158/5187 cut-off events. [2021-04-29 00:18:23,538 INFO L130 PetriNetUnfolder]: For 9496/14694 co-relation queries the response was YES. [2021-04-29 00:18:23,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22350 conditions, 5187 events. 2158/5187 cut-off events. For 9496/14694 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 58787 event pairs, 459 based on Foata normal form. 7/1532 useless extension candidates. Maximal degree in co-relation 22327. Up to 4793 conditions per place. [2021-04-29 00:18:23,629 INFO L146 LiptonReduction]: Number of co-enabled transitions 1204 [2021-04-29 00:18:23,661 INFO L158 LiptonReduction]: Checked pairs total: 212 [2021-04-29 00:18:23,662 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:23,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 718 [2021-04-29 00:18:23,663 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 86 transitions, 646 flow [2021-04-29 00:18:23,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:23,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:23,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:23,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:18:23,664 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:23,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1418107215, now seen corresponding path program 1 times [2021-04-29 00:18:23,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:23,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542787352] [2021-04-29 00:18:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:23,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:23,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:23,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:23,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:23,765 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:18:23,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:18:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:23,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542787352] [2021-04-29 00:18:23,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:23,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:18:23,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476022439] [2021-04-29 00:18:23,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:18:23,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:23,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:18:23,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:18:23,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-29 00:18:23,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 86 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:23,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:23,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-29 00:18:23,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:24,697 INFO L129 PetriNetUnfolder]: 1779/5068 cut-off events. [2021-04-29 00:18:24,697 INFO L130 PetriNetUnfolder]: For 7041/31736 co-relation queries the response was YES. [2021-04-29 00:18:24,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26539 conditions, 5068 events. 1779/5068 cut-off events. For 7041/31736 co-relation queries the response was YES. Maximal size of possible extension queue 1512. Compared 63680 event pairs, 0 based on Foata normal form. 143/1719 useless extension candidates. Maximal degree in co-relation 26514. Up to 4562 conditions per place. [2021-04-29 00:18:24,736 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 5 selfloop transitions, 61 changer transitions 18/105 dead transitions. [2021-04-29 00:18:24,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 105 transitions, 942 flow [2021-04-29 00:18:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:18:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:18:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2021-04-29 00:18:24,741 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6819693945442449 [2021-04-29 00:18:24,742 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2021-04-29 00:18:24,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2021-04-29 00:18:24,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:24,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2021-04-29 00:18:24,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:24,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:24,750 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:24,750 INFO L185 Difference]: Start difference. First operand has 70 places, 86 transitions, 646 flow. Second operand 9 states and 1025 transitions. [2021-04-29 00:18:24,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 105 transitions, 942 flow [2021-04-29 00:18:25,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 105 transitions, 827 flow, removed 36 selfloop flow, removed 3 redundant places. [2021-04-29 00:18:25,044 INFO L241 Difference]: Finished difference. Result has 78 places, 85 transitions, 692 flow [2021-04-29 00:18:25,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=692, PETRI_PLACES=78, PETRI_TRANSITIONS=85} [2021-04-29 00:18:25,044 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2021-04-29 00:18:25,045 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:25,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 85 transitions, 692 flow [2021-04-29 00:18:25,045 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 85 transitions, 692 flow [2021-04-29 00:18:25,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 85 transitions, 692 flow [2021-04-29 00:18:25,311 INFO L129 PetriNetUnfolder]: 744/2476 cut-off events. [2021-04-29 00:18:25,311 INFO L130 PetriNetUnfolder]: For 6830/10185 co-relation queries the response was YES. [2021-04-29 00:18:25,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11079 conditions, 2476 events. 744/2476 cut-off events. For 6830/10185 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 29803 event pairs, 0 based on Foata normal form. 5/737 useless extension candidates. Maximal degree in co-relation 11053. Up to 1692 conditions per place. [2021-04-29 00:18:25,354 INFO L146 LiptonReduction]: Number of co-enabled transitions 1166 [2021-04-29 00:18:25,379 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:18:25,380 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:25,380 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 335 [2021-04-29 00:18:25,381 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 692 flow [2021-04-29 00:18:25,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:25,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:18:25,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:18:25,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:18:25,383 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:18:25,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:18:25,383 INFO L82 PathProgramCache]: Analyzing trace with hash -440620360, now seen corresponding path program 1 times [2021-04-29 00:18:25,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:18:25,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962381482] [2021-04-29 00:18:25,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:18:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:18:25,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:25,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:18:25,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:25,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:25,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:18:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:18:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:18:25,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962381482] [2021-04-29 00:18:25,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:18:25,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:18:25,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810284165] [2021-04-29 00:18:25,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:18:25,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:18:25,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:18:25,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:18:25,429 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 167 [2021-04-29 00:18:25,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 692 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:25,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:18:25,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 167 [2021-04-29 00:18:25,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:18:25,788 INFO L129 PetriNetUnfolder]: 972/3232 cut-off events. [2021-04-29 00:18:25,788 INFO L130 PetriNetUnfolder]: For 9767/15180 co-relation queries the response was YES. [2021-04-29 00:18:25,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 3232 events. 972/3232 cut-off events. For 9767/15180 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 41122 event pairs, 0 based on Foata normal form. 35/954 useless extension candidates. Maximal degree in co-relation 14358. Up to 2241 conditions per place. [2021-04-29 00:18:25,809 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2021-04-29 00:18:25,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 85 transitions, 688 flow [2021-04-29 00:18:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:18:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:18:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2021-04-29 00:18:25,812 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7140718562874252 [2021-04-29 00:18:25,812 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 477 transitions. [2021-04-29 00:18:25,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 477 transitions. [2021-04-29 00:18:25,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:18:25,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 477 transitions. [2021-04-29 00:18:25,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:25,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 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) [2021-04-29 00:18:25,817 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 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) [2021-04-29 00:18:25,817 INFO L185 Difference]: Start difference. First operand has 75 places, 85 transitions, 692 flow. Second operand 4 states and 477 transitions. [2021-04-29 00:18:25,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 85 transitions, 688 flow [2021-04-29 00:18:26,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 85 transitions, 446 flow, removed 42 selfloop flow, removed 12 redundant places. [2021-04-29 00:18:26,476 INFO L241 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2021-04-29 00:18:26,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2021-04-29 00:18:26,477 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -13 predicate places. [2021-04-29 00:18:26,477 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:18:26,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 0 transitions, 0 flow [2021-04-29 00:18:26,478 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 0 transitions, 0 flow [2021-04-29 00:18:26,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:18:26,478 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:18:26,478 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:18:26,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:18:26,478 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:18:26,479 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:18:26,479 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:18:26,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:18:26,480 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:18:26,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:18:26,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:18:26,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:18:26 BasicIcfg [2021-04-29 00:18:26,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:18:26,487 INFO L168 Benchmark]: Toolchain (without parser) took 19274.02 ms. Allocated memory was 312.5 MB in the beginning and 553.6 MB in the end (delta: 241.2 MB). Free memory was 286.2 MB in the beginning and 189.0 MB in the end (delta: 97.3 MB). Peak memory consumption was 341.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:18:26,487 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 312.5 MB. Free memory is still 280.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:18:26,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.17 ms. Allocated memory is still 312.5 MB. Free memory was 283.1 MB in the beginning and 282.8 MB in the end (delta: 353.1 kB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB. [2021-04-29 00:18:26,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.57 ms. Allocated memory is still 312.5 MB. Free memory was 282.8 MB in the beginning and 280.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:18:26,488 INFO L168 Benchmark]: Boogie Preprocessor took 57.84 ms. Allocated memory is still 312.5 MB. Free memory was 280.9 MB in the beginning and 279.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:18:26,489 INFO L168 Benchmark]: RCFGBuilder took 524.90 ms. Allocated memory is still 312.5 MB. Free memory was 279.8 MB in the beginning and 255.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:18:26,489 INFO L168 Benchmark]: TraceAbstraction took 17951.66 ms. Allocated memory was 312.5 MB in the beginning and 553.6 MB in the end (delta: 241.2 MB). Free memory was 255.7 MB in the beginning and 189.0 MB in the end (delta: 66.7 MB). Peak memory consumption was 306.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:18:26,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 312.5 MB. Free memory is still 280.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 603.17 ms. Allocated memory is still 312.5 MB. Free memory was 283.1 MB in the beginning and 282.8 MB in the end (delta: 353.1 kB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 77.57 ms. Allocated memory is still 312.5 MB. Free memory was 282.8 MB in the beginning and 280.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.84 ms. Allocated memory is still 312.5 MB. Free memory was 280.9 MB in the beginning and 279.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 524.90 ms. Allocated memory is still 312.5 MB. Free memory was 279.8 MB in the beginning and 255.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17951.66 ms. Allocated memory was 312.5 MB in the beginning and 553.6 MB in the end (delta: 241.2 MB). Free memory was 255.7 MB in the beginning and 189.0 MB in the end (delta: 66.7 MB). Peak memory consumption was 306.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8825.6ms, 69 PlacesBefore, 78 PlacesAfterwards, 60 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 6680 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2169, positive: 1967, positive conditional: 1967, positive unconditional: 0, negative: 202, negative conditional: 202, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 951, positive: 895, positive conditional: 0, positive unconditional: 895, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 951, positive: 895, positive conditional: 0, positive unconditional: 895, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 951, positive: 865, positive conditional: 0, positive unconditional: 865, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 368, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 248, negative conditional: 0, negative unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2169, positive: 1072, positive conditional: 1072, positive unconditional: 0, negative: 146, negative conditional: 146, negative unconditional: 0, unknown: 951, unknown conditional: 951, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 946, Positive cache size: 890, Positive conditional cache size: 890, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.5ms, 79 PlacesBefore, 48 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 955, Positive cache size: 897, Positive conditional cache size: 897, Positive unconditional cache size: 0, Negative cache size: 58, Negative conditional cache size: 58, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.9ms, 52 PlacesBefore, 51 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 287 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 41, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 956, Positive cache size: 897, Positive conditional cache size: 897, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3ms, 53 PlacesBefore, 53 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 320 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 960, Positive cache size: 900, Positive conditional cache size: 900, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.3ms, 60 PlacesBefore, 60 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1366 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 318 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 962, Positive cache size: 901, Positive conditional cache size: 901, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.4ms, 66 PlacesBefore, 65 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 131 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 89, positive conditional: 89, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 3, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 3, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 94, positive: 80, positive conditional: 80, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 972, Positive cache size: 910, Positive conditional cache size: 910, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1133.3ms, 62 PlacesBefore, 62 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1014 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 172 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 972, Positive cache size: 910, Positive conditional cache size: 910, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 716.8ms, 70 PlacesBefore, 70 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 1204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 212 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 120, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 18, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 18, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 124, positive: 97, positive conditional: 97, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 995, Positive cache size: 933, Positive conditional cache size: 933, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 334.8ms, 78 PlacesBefore, 75 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 1166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1013, Positive cache size: 951, Positive conditional cache size: 951, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 65 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1013, Positive cache size: 951, Positive conditional cache size: 951, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 17790.7ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5221.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8956.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 76 SDtfs, 82 SDslu, 30 SDs, 0 SdLazy, 340 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 340.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=692occurred in iteration=8, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.7ms SsaConstructionTime, 264.8ms SatisfiabilityAnalysisTime, 609.7ms InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...