/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:18:49,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:18:49,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:18:49,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:18:49,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:18:49,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:18:49,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:18:49,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:18:49,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:18:49,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:18:49,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:18:49,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:18:49,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:18:49,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:18:49,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:18:49,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:18:49,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:18:49,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:18:49,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:18:49,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:18:49,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:18:49,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:18:49,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:18:49,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:18:49,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 16:18:49,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 16:18:49,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 16:18:49,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 16:18:49,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 16:18:49,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 16:18:49,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:18:49,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:18:49,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:18:49,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:18:49,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:18:49,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:18:49,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:18:49,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:18:49,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:18:49,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:18:49,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:18:49,136 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 16:18:49,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:18:49,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:18:49,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:18:49,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:18:49,172 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:18:49,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:18:49,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:18:49,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:18:49,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:18:49,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:18:49,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:18:49,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:18:49,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:18:49,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:18:49,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:18:49,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:18:49,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:18:49,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:18:49,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:18:49,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:18:49,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:18:49,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:18:49,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:18:49,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:18:49,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:18:49,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:18:49,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:18:49,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:18:49,176 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:18:49,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:18:49,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:18:49,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:18:49,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:18:49,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:18:49,454 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:18:49,454 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:18:49,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2021-06-11 16:18:49,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b228d2350/479d9ea861464808b1241236fdea93da/FLAGcf8624e13 [2021-06-11 16:18:50,047 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:18:50,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2021-06-11 16:18:50,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b228d2350/479d9ea861464808b1241236fdea93da/FLAGcf8624e13 [2021-06-11 16:18:50,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b228d2350/479d9ea861464808b1241236fdea93da [2021-06-11 16:18:50,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:18:50,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:18:50,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:18:50,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:18:50,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:18:50,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:50,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@adb7af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50, skipping insertion in model container [2021-06-11 16:18:50,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:50,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:18:50,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:18:50,733 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i[949,962] [2021-06-11 16:18:50,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:18:50,879 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:18:50,891 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i[949,962] [2021-06-11 16:18:50,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:18:50,991 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:18:50,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50 WrapperNode [2021-06-11 16:18:50,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:18:50,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:18:50,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:18:50,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:18:50,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:18:51,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:18:51,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:18:51,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:18:51,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (1/1) ... [2021-06-11 16:18:51,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:18:51,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:18:51,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:18:51,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:18:51,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (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 [2021-06-11 16:18:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:18:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:18:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:18:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:18:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:18:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:18:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:18:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:18:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:18:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:18:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:18:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:18:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:18:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:18:51,111 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 16:18:51,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:18:51,483 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:18:51,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:18:51 BoogieIcfgContainer [2021-06-11 16:18:51,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:18:51,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:18:51,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:18:51,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:18:51,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:18:50" (1/3) ... [2021-06-11 16:18:51,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6915cc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:18:51, skipping insertion in model container [2021-06-11 16:18:51,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:18:50" (2/3) ... [2021-06-11 16:18:51,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6915cc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:18:51, skipping insertion in model container [2021-06-11 16:18:51,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:18:51" (3/3) ... [2021-06-11 16:18:51,490 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2021-06-11 16:18:51,495 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:18:51,498 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:18:51,499 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:18:51,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,535 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,535 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,540 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,547 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,547 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:18:51,549 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:18:51,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 16:18:51,591 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:18:51,592 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:18:51,592 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:18:51,592 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:18:51,592 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:18:51,592 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:18:51,593 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:18:51,593 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:18:51,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 16:18:51,652 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-06-11 16:18:51,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:18:51,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-11 16:18:51,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 16:18:51,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-06-11 16:18:51,672 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:51,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 16:18:51,686 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 16:18:51,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-06-11 16:18:51,719 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-06-11 16:18:51,719 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:18:51,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-11 16:18:51,723 INFO L151 LiptonReduction]: Number of co-enabled transitions 804 [2021-06-11 16:18:51,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:51,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:51,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:51,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:51,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:51,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:51,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:52,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:52,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:52,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:52,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:52,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:52,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:52,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:52,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:52,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:52,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:52,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:52,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:52,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:18:52,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:52,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,738 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 16:18:52,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 16:18:52,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:52,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:52,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:52,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:52,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:53,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:53,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:53,798 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-06-11 16:18:53,950 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-06-11 16:18:54,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:54,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:54,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 16:18:54,164 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 16:18:54,380 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 16:18:54,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:18:54,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:18:54,453 INFO L163 LiptonReduction]: Checked pairs total: 1446 [2021-06-11 16:18:54,453 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 16:18:54,455 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2785 [2021-06-11 16:18:54,468 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-11 16:18:54,468 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:18:54,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:54,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:54,469 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:54,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash 21371729, now seen corresponding path program 1 times [2021-06-11 16:18:54,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:54,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551783667] [2021-06-11 16:18:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:54,642 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:18:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:54,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551783667] [2021-06-11 16:18:54,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:54,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:18:54,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434270525] [2021-06-11 16:18:54,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:18:54,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:54,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:18:54,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:18:54,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-06-11 16:18:54,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:54,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-06-11 16:18:54,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:54,713 INFO L129 PetriNetUnfolder]: 11/51 cut-off events. [2021-06-11 16:18:54,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:18:54,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 51 events. 11/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 169 event pairs, 7 based on Foata normal form. 4/53 useless extension candidates. Maximal degree in co-relation 84. Up to 26 conditions per place. [2021-06-11 16:18:54,715 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 4 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2021-06-11 16:18:54,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 65 flow [2021-06-11 16:18:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:18:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:18:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2021-06-11 16:18:54,731 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7909604519774012 [2021-06-11 16:18:54,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2021-06-11 16:18:54,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2021-06-11 16:18:54,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:54,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2021-06-11 16:18:54,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,750 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 280 transitions. [2021-06-11 16:18:54,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 65 flow [2021-06-11 16:18:54,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 62 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 16:18:54,754 INFO L241 Difference]: Finished difference. Result has 26 places, 19 transitions, 67 flow [2021-06-11 16:18:54,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2021-06-11 16:18:54,756 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-11 16:18:54,756 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:54,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 19 transitions, 67 flow [2021-06-11 16:18:54,757 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 19 transitions, 67 flow [2021-06-11 16:18:54,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 67 flow [2021-06-11 16:18:54,766 INFO L129 PetriNetUnfolder]: 11/50 cut-off events. [2021-06-11 16:18:54,766 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 16:18:54,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 50 events. 11/50 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 151 event pairs, 5 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 89. Up to 26 conditions per place. [2021-06-11 16:18:54,767 INFO L151 LiptonReduction]: Number of co-enabled transitions 110 [2021-06-11 16:18:54,769 INFO L163 LiptonReduction]: Checked pairs total: 37 [2021-06-11 16:18:54,770 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:54,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:18:54,771 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 67 flow [2021-06-11 16:18:54,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:54,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:54,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:18:54,771 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:54,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:54,772 INFO L82 PathProgramCache]: Analyzing trace with hash 662522854, now seen corresponding path program 1 times [2021-06-11 16:18:54,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:54,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122775161] [2021-06-11 16:18:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:54,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:54,851 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:18:54,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:54,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122775161] [2021-06-11 16:18:54,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:54,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:18:54,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137106309] [2021-06-11 16:18:54,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:18:54,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:54,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:18:54,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:18:54,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-06-11 16:18:54,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:54,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-06-11 16:18:54,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:54,897 INFO L129 PetriNetUnfolder]: 8/43 cut-off events. [2021-06-11 16:18:54,898 INFO L130 PetriNetUnfolder]: For 10/25 co-relation queries the response was YES. [2021-06-11 16:18:54,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 43 events. 8/43 cut-off events. For 10/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 111 event pairs, 2 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 103. Up to 21 conditions per place. [2021-06-11 16:18:54,898 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 6 changer transitions 0/21 dead transitions. [2021-06-11 16:18:54,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 98 flow [2021-06-11 16:18:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:18:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:18:54,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:18:54,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 16:18:54,901 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:18:54,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:18:54,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:54,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:18:54,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,906 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,906 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 67 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:18:54,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 98 flow [2021-06-11 16:18:54,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:18:54,907 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 88 flow [2021-06-11 16:18:54,907 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-06-11 16:18:54,908 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-06-11 16:18:54,908 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:54,908 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 88 flow [2021-06-11 16:18:54,909 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 88 flow [2021-06-11 16:18:54,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 20 transitions, 88 flow [2021-06-11 16:18:54,916 INFO L129 PetriNetUnfolder]: 8/46 cut-off events. [2021-06-11 16:18:54,916 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-06-11 16:18:54,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 46 events. 8/46 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 143 event pairs, 4 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 100. Up to 21 conditions per place. [2021-06-11 16:18:54,917 INFO L151 LiptonReduction]: Number of co-enabled transitions 116 [2021-06-11 16:18:54,920 INFO L163 LiptonReduction]: Checked pairs total: 40 [2021-06-11 16:18:54,920 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:54,920 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 16:18:54,924 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 88 flow [2021-06-11 16:18:54,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:54,925 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:54,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:18:54,925 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:54,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:54,926 INFO L82 PathProgramCache]: Analyzing trace with hash 662523133, now seen corresponding path program 1 times [2021-06-11 16:18:54,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:54,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941222239] [2021-06-11 16:18:54,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:54,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:54,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:54,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:54,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941222239] [2021-06-11 16:18:54,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:54,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:18:54,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683664242] [2021-06-11 16:18:54,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:18:54,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:54,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:18:54,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:18:54,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2021-06-11 16:18:54,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:54,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:54,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2021-06-11 16:18:54,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:54,999 INFO L129 PetriNetUnfolder]: 15/73 cut-off events. [2021-06-11 16:18:54,999 INFO L130 PetriNetUnfolder]: For 63/73 co-relation queries the response was YES. [2021-06-11 16:18:55,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 73 events. 15/73 cut-off events. For 63/73 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 289 event pairs, 3 based on Foata normal form. 11/82 useless extension candidates. Maximal degree in co-relation 188. Up to 33 conditions per place. [2021-06-11 16:18:55,000 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 5 selfloop transitions, 4 changer transitions 4/26 dead transitions. [2021-06-11 16:18:55,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 150 flow [2021-06-11 16:18:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:18:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:18:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-06-11 16:18:55,002 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923728813559322 [2021-06-11 16:18:55,002 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-06-11 16:18:55,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-06-11 16:18:55,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:55,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-06-11 16:18:55,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,004 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,005 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 88 flow. Second operand 4 states and 374 transitions. [2021-06-11 16:18:55,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 150 flow [2021-06-11 16:18:55,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:18:55,006 INFO L241 Difference]: Finished difference. Result has 33 places, 20 transitions, 96 flow [2021-06-11 16:18:55,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2021-06-11 16:18:55,007 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-11 16:18:55,007 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:55,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 20 transitions, 96 flow [2021-06-11 16:18:55,007 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 20 transitions, 96 flow [2021-06-11 16:18:55,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 20 transitions, 96 flow [2021-06-11 16:18:55,012 INFO L129 PetriNetUnfolder]: 8/44 cut-off events. [2021-06-11 16:18:55,012 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2021-06-11 16:18:55,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 44 events. 8/44 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 4 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 109. Up to 21 conditions per place. [2021-06-11 16:18:55,013 INFO L151 LiptonReduction]: Number of co-enabled transitions 100 [2021-06-11 16:18:55,014 INFO L163 LiptonReduction]: Checked pairs total: 12 [2021-06-11 16:18:55,015 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:55,015 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 16:18:55,015 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 96 flow [2021-06-11 16:18:55,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,016 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:55,016 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:55,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:18:55,016 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:55,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:55,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1366205547, now seen corresponding path program 1 times [2021-06-11 16:18:55,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:55,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080990622] [2021-06-11 16:18:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:55,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:55,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080990622] [2021-06-11 16:18:55,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:55,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:18:55,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321210783] [2021-06-11 16:18:55,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:18:55,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:55,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:18:55,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:18:55,069 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2021-06-11 16:18:55,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:55,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2021-06-11 16:18:55,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:55,082 INFO L129 PetriNetUnfolder]: 6/40 cut-off events. [2021-06-11 16:18:55,082 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-06-11 16:18:55,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 40 events. 6/40 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 96 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 108. Up to 18 conditions per place. [2021-06-11 16:18:55,083 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 3 selfloop transitions, 4 changer transitions 0/21 dead transitions. [2021-06-11 16:18:55,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 116 flow [2021-06-11 16:18:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:18:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:18:55,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-06-11 16:18:55,084 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2021-06-11 16:18:55,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-06-11 16:18:55,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-06-11 16:18:55,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:55,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-06-11 16:18:55,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,087 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 96 flow. Second operand 3 states and 298 transitions. [2021-06-11 16:18:55,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 116 flow [2021-06-11 16:18:55,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 102 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-11 16:18:55,090 INFO L241 Difference]: Finished difference. Result has 32 places, 21 transitions, 104 flow [2021-06-11 16:18:55,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2021-06-11 16:18:55,090 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2021-06-11 16:18:55,090 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:55,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 21 transitions, 104 flow [2021-06-11 16:18:55,091 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 21 transitions, 104 flow [2021-06-11 16:18:55,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 21 transitions, 104 flow [2021-06-11 16:18:55,095 INFO L129 PetriNetUnfolder]: 6/39 cut-off events. [2021-06-11 16:18:55,095 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-06-11 16:18:55,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 39 events. 6/39 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 93 event pairs, 3 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 94. Up to 18 conditions per place. [2021-06-11 16:18:55,097 INFO L151 LiptonReduction]: Number of co-enabled transitions 104 [2021-06-11 16:18:55,099 INFO L163 LiptonReduction]: Checked pairs total: 28 [2021-06-11 16:18:55,099 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:55,099 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 16:18:55,108 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 104 flow [2021-06-11 16:18:55,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:55,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:55,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:18:55,109 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:55,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:55,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1029284130, now seen corresponding path program 1 times [2021-06-11 16:18:55,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:55,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121821354] [2021-06-11 16:18:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:55,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:55,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121821354] [2021-06-11 16:18:55,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:55,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:18:55,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742421351] [2021-06-11 16:18:55,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:18:55,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:55,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:18:55,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:18:55,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-06-11 16:18:55,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:55,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-06-11 16:18:55,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:55,238 INFO L129 PetriNetUnfolder]: 69/160 cut-off events. [2021-06-11 16:18:55,239 INFO L130 PetriNetUnfolder]: For 211/253 co-relation queries the response was YES. [2021-06-11 16:18:55,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 160 events. 69/160 cut-off events. For 211/253 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 719 event pairs, 27 based on Foata normal form. 23/175 useless extension candidates. Maximal degree in co-relation 384. Up to 102 conditions per place. [2021-06-11 16:18:55,240 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 8 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2021-06-11 16:18:55,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 156 flow [2021-06-11 16:18:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:18:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:18:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-06-11 16:18:55,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7677966101694915 [2021-06-11 16:18:55,242 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-06-11 16:18:55,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-06-11 16:18:55,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:55,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-06-11 16:18:55,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,245 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,245 INFO L185 Difference]: Start difference. First operand has 32 places, 21 transitions, 104 flow. Second operand 5 states and 453 transitions. [2021-06-11 16:18:55,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 156 flow [2021-06-11 16:18:55,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 146 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 16:18:55,247 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 154 flow [2021-06-11 16:18:55,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-06-11 16:18:55,247 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-11 16:18:55,248 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:55,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 154 flow [2021-06-11 16:18:55,248 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 154 flow [2021-06-11 16:18:55,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 154 flow [2021-06-11 16:18:55,260 INFO L129 PetriNetUnfolder]: 69/160 cut-off events. [2021-06-11 16:18:55,260 INFO L130 PetriNetUnfolder]: For 255/288 co-relation queries the response was YES. [2021-06-11 16:18:55,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 160 events. 69/160 cut-off events. For 255/288 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 768 event pairs, 27 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 491. Up to 111 conditions per place. [2021-06-11 16:18:55,262 INFO L151 LiptonReduction]: Number of co-enabled transitions 164 [2021-06-11 16:18:55,264 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:18:55,264 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:55,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 16:18:55,265 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 154 flow [2021-06-11 16:18:55,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:55,265 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:55,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:18:55,265 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:55,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:55,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1706247387, now seen corresponding path program 1 times [2021-06-11 16:18:55,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:55,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139098982] [2021-06-11 16:18:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:55,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,301 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-06-11 16:18:55,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 16:18:55,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:55,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139098982] [2021-06-11 16:18:55,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:55,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:18:55,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030368340] [2021-06-11 16:18:55,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:18:55,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:55,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:18:55,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:18:55,309 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-06-11 16:18:55,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:55,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-06-11 16:18:55,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:55,371 INFO L129 PetriNetUnfolder]: 49/136 cut-off events. [2021-06-11 16:18:55,371 INFO L130 PetriNetUnfolder]: For 485/673 co-relation queries the response was YES. [2021-06-11 16:18:55,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 136 events. 49/136 cut-off events. For 485/673 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 657 event pairs, 4 based on Foata normal form. 70/198 useless extension candidates. Maximal degree in co-relation 510. Up to 102 conditions per place. [2021-06-11 16:18:55,372 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 15 changer transitions 3/38 dead transitions. [2021-06-11 16:18:55,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 258 flow [2021-06-11 16:18:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:18:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:18:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 634 transitions. [2021-06-11 16:18:55,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7675544794188862 [2021-06-11 16:18:55,375 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 634 transitions. [2021-06-11 16:18:55,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 634 transitions. [2021-06-11 16:18:55,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:55,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 634 transitions. [2021-06-11 16:18:55,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,378 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,379 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 154 flow. Second operand 7 states and 634 transitions. [2021-06-11 16:18:55,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 258 flow [2021-06-11 16:18:55,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:18:55,383 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 249 flow [2021-06-11 16:18:55,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2021-06-11 16:18:55,384 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 19 predicate places. [2021-06-11 16:18:55,384 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:55,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 249 flow [2021-06-11 16:18:55,384 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 249 flow [2021-06-11 16:18:55,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 249 flow [2021-06-11 16:18:55,395 INFO L129 PetriNetUnfolder]: 41/124 cut-off events. [2021-06-11 16:18:55,396 INFO L130 PetriNetUnfolder]: For 459/523 co-relation queries the response was YES. [2021-06-11 16:18:55,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 124 events. 41/124 cut-off events. For 459/523 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 623 event pairs, 4 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 516. Up to 90 conditions per place. [2021-06-11 16:18:55,397 INFO L151 LiptonReduction]: Number of co-enabled transitions 194 [2021-06-11 16:18:55,400 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:18:55,400 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:55,401 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-06-11 16:18:55,402 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 249 flow [2021-06-11 16:18:55,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,402 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:55,402 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:55,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:18:55,402 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:55,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1231461990, now seen corresponding path program 1 times [2021-06-11 16:18:55,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:55,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276126511] [2021-06-11 16:18:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:55,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:18:55,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,449 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:18:55,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:18:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:55,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276126511] [2021-06-11 16:18:55,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:55,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:18:55,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91695252] [2021-06-11 16:18:55,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:18:55,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:55,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:18:55,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:18:55,461 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 16:18:55,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:55,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 16:18:55,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:55,498 INFO L129 PetriNetUnfolder]: 42/140 cut-off events. [2021-06-11 16:18:55,498 INFO L130 PetriNetUnfolder]: For 594/735 co-relation queries the response was YES. [2021-06-11 16:18:55,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 140 events. 42/140 cut-off events. For 594/735 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 750 event pairs, 2 based on Foata normal form. 19/146 useless extension candidates. Maximal degree in co-relation 582. Up to 101 conditions per place. [2021-06-11 16:18:55,499 INFO L132 encePairwiseOnDemand]: 111/118 looper letters, 5 selfloop transitions, 11 changer transitions 4/40 dead transitions. [2021-06-11 16:18:55,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 309 flow [2021-06-11 16:18:55,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:18:55,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:18:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 440 transitions. [2021-06-11 16:18:55,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7457627118644068 [2021-06-11 16:18:55,501 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 440 transitions. [2021-06-11 16:18:55,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 440 transitions. [2021-06-11 16:18:55,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:55,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 440 transitions. [2021-06-11 16:18:55,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,504 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,504 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 249 flow. Second operand 5 states and 440 transitions. [2021-06-11 16:18:55,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 309 flow [2021-06-11 16:18:55,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 274 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-06-11 16:18:55,508 INFO L241 Difference]: Finished difference. Result has 49 places, 36 transitions, 259 flow [2021-06-11 16:18:55,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=259, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2021-06-11 16:18:55,509 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2021-06-11 16:18:55,509 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:55,509 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 36 transitions, 259 flow [2021-06-11 16:18:55,509 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 36 transitions, 259 flow [2021-06-11 16:18:55,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 36 transitions, 259 flow [2021-06-11 16:18:55,519 INFO L129 PetriNetUnfolder]: 27/117 cut-off events. [2021-06-11 16:18:55,519 INFO L130 PetriNetUnfolder]: For 228/254 co-relation queries the response was YES. [2021-06-11 16:18:55,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 117 events. 27/117 cut-off events. For 228/254 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 631 event pairs, 2 based on Foata normal form. 6/116 useless extension candidates. Maximal degree in co-relation 398. Up to 40 conditions per place. [2021-06-11 16:18:55,520 INFO L151 LiptonReduction]: Number of co-enabled transitions 222 [2021-06-11 16:18:55,525 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:18:55,525 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:55,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 16:18:55,526 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 259 flow [2021-06-11 16:18:55,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,527 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:18:55,527 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:18:55,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:18:55,528 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:18:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:18:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash 389402918, now seen corresponding path program 2 times [2021-06-11 16:18:55,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:18:55,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902643182] [2021-06-11 16:18:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:18:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:18:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,607 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-06-11 16:18:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 16:18:55,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:18:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:18:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:18:55,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902643182] [2021-06-11 16:18:55,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:18:55,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:18:55,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178387324] [2021-06-11 16:18:55,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:18:55,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:18:55,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:18:55,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:18:55,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-06-11 16:18:55,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:18:55,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-06-11 16:18:55,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:18:55,675 INFO L129 PetriNetUnfolder]: 25/111 cut-off events. [2021-06-11 16:18:55,675 INFO L130 PetriNetUnfolder]: For 356/517 co-relation queries the response was YES. [2021-06-11 16:18:55,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 111 events. 25/111 cut-off events. For 356/517 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 597 event pairs, 0 based on Foata normal form. 78/182 useless extension candidates. Maximal degree in co-relation 448. Up to 40 conditions per place. [2021-06-11 16:18:55,676 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2021-06-11 16:18:55,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 38 transitions, 301 flow [2021-06-11 16:18:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 16:18:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 16:18:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 803 transitions. [2021-06-11 16:18:55,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.756120527306968 [2021-06-11 16:18:55,679 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 803 transitions. [2021-06-11 16:18:55,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 803 transitions. [2021-06-11 16:18:55,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:18:55,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 803 transitions. [2021-06-11 16:18:55,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.22222222222223) internal successors, (803), 9 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,683 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,683 INFO L185 Difference]: Start difference. First operand has 49 places, 36 transitions, 259 flow. Second operand 9 states and 803 transitions. [2021-06-11 16:18:55,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 38 transitions, 301 flow [2021-06-11 16:18:55,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 38 transitions, 277 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-06-11 16:18:55,685 INFO L241 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2021-06-11 16:18:55,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2021-06-11 16:18:55,686 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 25 predicate places. [2021-06-11 16:18:55,686 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:18:55,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 0 transitions, 0 flow [2021-06-11 16:18:55,686 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 0 transitions, 0 flow [2021-06-11 16:18:55,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:18:55,686 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:18:55,686 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:18:55,687 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. [2021-06-11 16:18:55,687 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:18:55,687 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:18:55,687 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:18:55,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:18:55,688 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:18:55,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:18:55,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:18:55,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:18:55 BasicIcfg [2021-06-11 16:18:55,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:18:55,692 INFO L168 Benchmark]: Toolchain (without parser) took 5181.76 ms. Allocated memory was 406.8 MB in the beginning and 488.6 MB in the end (delta: 81.8 MB). Free memory was 368.9 MB in the beginning and 284.3 MB in the end (delta: 84.7 MB). Peak memory consumption was 167.3 MB. Max. memory is 16.0 GB. [2021-06-11 16:18:55,692 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 406.8 MB. Free memory is still 387.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:18:55,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.33 ms. Allocated memory is still 406.8 MB. Free memory was 368.7 MB in the beginning and 368.6 MB in the end (delta: 110.8 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.0 GB. [2021-06-11 16:18:55,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.15 ms. Allocated memory is still 406.8 MB. Free memory was 368.6 MB in the beginning and 366.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:18:55,694 INFO L168 Benchmark]: Boogie Preprocessor took 18.19 ms. Allocated memory is still 406.8 MB. Free memory was 366.2 MB in the beginning and 364.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:18:55,694 INFO L168 Benchmark]: RCFGBuilder took 442.22 ms. Allocated memory is still 406.8 MB. Free memory was 364.4 MB in the beginning and 341.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:18:55,695 INFO L168 Benchmark]: TraceAbstraction took 4205.25 ms. Allocated memory was 406.8 MB in the beginning and 488.6 MB in the end (delta: 81.8 MB). Free memory was 341.3 MB in the beginning and 284.3 MB in the end (delta: 57.1 MB). Peak memory consumption was 138.5 MB. Max. memory is 16.0 GB. [2021-06-11 16:18:55,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 406.8 MB. Free memory is still 387.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 480.33 ms. Allocated memory is still 406.8 MB. Free memory was 368.7 MB in the beginning and 368.6 MB in the end (delta: 110.8 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.15 ms. Allocated memory is still 406.8 MB. Free memory was 368.6 MB in the beginning and 366.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.19 ms. Allocated memory is still 406.8 MB. Free memory was 366.2 MB in the beginning and 364.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 442.22 ms. Allocated memory is still 406.8 MB. Free memory was 364.4 MB in the beginning and 341.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4205.25 ms. Allocated memory was 406.8 MB in the beginning and 488.6 MB in the end (delta: 81.8 MB). Free memory was 341.3 MB in the beginning and 284.3 MB in the end (delta: 57.1 MB). Peak memory consumption was 138.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2766.9ms, 67 PlacesBefore, 26 PlacesAfterwards, 58 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1446 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 865, positive: 788, positive conditional: 788, positive unconditional: 0, negative: 77, negative conditional: 77, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 865, positive: 788, positive conditional: 0, positive unconditional: 788, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 865, positive: 788, positive conditional: 0, positive unconditional: 788, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 605, positive: 574, positive conditional: 0, positive unconditional: 574, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 605, positive: 566, positive conditional: 0, positive unconditional: 566, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 164, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 865, positive: 214, positive conditional: 0, positive unconditional: 214, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 605, unknown conditional: 0, unknown unconditional: 605] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.9ms, 26 PlacesBefore, 26 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7ms, 30 PlacesBefore, 30 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 40 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1ms, 33 PlacesBefore, 33 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 32 PlacesBefore, 32 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.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: 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] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3ms, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.8ms, 49 PlacesBefore, 49 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 222 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 51 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 605, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4101.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 427.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2872.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 24 SDslu, 15 SDs, 0 SdLazy, 115 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 90.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=7, InterpolantAutomatonStates: 40, 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: 16.2ms SsaConstructionTime, 134.4ms SatisfiabilityAnalysisTime, 379.5ms InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...