/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:52:08,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:52:08,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:52:08,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:52:08,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:52:08,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:52:08,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:52:08,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:52:08,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:52:08,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:52:08,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:52:08,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:52:08,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:52:08,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:52:08,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:52:08,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:52:08,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:52:08,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:52:08,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:52:08,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:52:08,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:52:08,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:52:08,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:52:08,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:52:08,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:52:08,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:52:08,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:52:08,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:52:08,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:52:08,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:52:08,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:52:08,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:52:08,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:52:08,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:52:08,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:52:08,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:52:08,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:52:08,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:52:08,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:52:08,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:52:08,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:52:08,298 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:52:08,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:52:08,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:52:08,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:52:08,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:52:08,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:52:08,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:52:08,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:52:08,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:52:08,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:52:08,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:52:08,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:52:08,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:52:08,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:52:08,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:52:08,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:52:08,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:52:08,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:52:08,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:52:08,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:52:08,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:52:08,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:52:08,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:52:08,304 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:52:08,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:52:08,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:52:08,305 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:52:08,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:52:08,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:52:08,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:52:08,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:52:08,731 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:52:08,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2021-04-28 23:52:08,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033ed8153/b6e3f5ae0b3a42268699c7742e3ae459/FLAGc84a528eb [2021-04-28 23:52:09,525 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:52:09,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2021-04-28 23:52:09,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033ed8153/b6e3f5ae0b3a42268699c7742e3ae459/FLAGc84a528eb [2021-04-28 23:52:09,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033ed8153/b6e3f5ae0b3a42268699c7742e3ae459 [2021-04-28 23:52:09,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:52:09,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:52:09,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:52:09,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:52:09,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:52:09,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:52:09" (1/1) ... [2021-04-28 23:52:09,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377b6bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:09, skipping insertion in model container [2021-04-28 23:52:09,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:52:09" (1/1) ... [2021-04-28 23:52:09,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:52:09,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:52:10,105 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/safe015_pso.oepc.i[950,963] [2021-04-28 23:52:10,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:52:10,295 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:52:10,311 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/safe015_pso.oepc.i[950,963] [2021-04-28 23:52:10,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:52:10,480 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:52:10,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10 WrapperNode [2021-04-28 23:52:10,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:52:10,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:52:10,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:52:10,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:52:10,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:52:10,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:52:10,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:52:10,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:52:10,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... [2021-04-28 23:52:10,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:52:10,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:52:10,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:52:10,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:52:10,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:52:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:52:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:52:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:52:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:52:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:52:10,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:52:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:52:10,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:52:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:52:10,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:52:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:52:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:52:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:52:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:52:10,673 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:52:11,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:52:11,027 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:52:11,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:52:11 BoogieIcfgContainer [2021-04-28 23:52:11,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:52:11,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:52:11,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:52:11,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:52:11,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:52:09" (1/3) ... [2021-04-28 23:52:11,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491ad414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:52:11, skipping insertion in model container [2021-04-28 23:52:11,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:52:10" (2/3) ... [2021-04-28 23:52:11,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491ad414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:52:11, skipping insertion in model container [2021-04-28 23:52:11,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:52:11" (3/3) ... [2021-04-28 23:52:11,039 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2021-04-28 23:52:11,047 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:52:11,052 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:52:11,054 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:52:11,091 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,091 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,092 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,093 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,093 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,095 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,116 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,120 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,121 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,126 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:52:11,128 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:52:11,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:52:11,182 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:52:11,182 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:52:11,183 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:52:11,183 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:52:11,183 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:52:11,183 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:52:11,183 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:52:11,183 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:52:11,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:52:11,259 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:52:11,260 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:52:11,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:52:11,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:52:11,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:52:11,291 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:11,312 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:52:11,320 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:52:11,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:52:11,378 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:52:11,379 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:52:11,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:52:11,383 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:52:15,154 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:52:16,709 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:52:16,894 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:52:17,060 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:52:17,362 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:52:17,525 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:52:17,688 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:52:17,842 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:52:18,008 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:52:18,167 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:52:18,320 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:52:18,507 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:52:18,661 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:52:18,829 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:52:19,002 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:52:19,260 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:52:19,507 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:52:19,752 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:52:19,997 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:52:20,126 INFO L158 LiptonReduction]: Checked pairs total: 6612 [2021-04-28 23:52:20,126 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-28 23:52:20,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8843 [2021-04-28 23:52:20,153 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-04-28 23:52:20,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:52:20,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:20,154 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:20,155 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:20,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash 2098921344, now seen corresponding path program 1 times [2021-04-28 23:52:20,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:20,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692391148] [2021-04-28 23:52:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:20,475 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:20,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692391148] [2021-04-28 23:52:20,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:20,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:52:20,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378419383] [2021-04-28 23:52:20,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:52:20,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:20,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:52:20,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:52:20,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:20,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:20,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:20,542 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:20,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:20,782 INFO L129 PetriNetUnfolder]: 439/1150 cut-off events. [2021-04-28 23:52:20,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:52:20,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 1150 events. 439/1150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 9759 event pairs, 137 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1837. Up to 362 conditions per place. [2021-04-28 23:52:20,793 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 7 selfloop transitions, 7 changer transitions 33/78 dead transitions. [2021-04-28 23:52:20,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 233 flow [2021-04-28 23:52:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:52:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:52:20,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2021-04-28 23:52:20,811 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2021-04-28 23:52:20,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2021-04-28 23:52:20,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2021-04-28 23:52:20,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:20,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2021-04-28 23:52:20,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:20,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:20,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:20,834 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 345 transitions. [2021-04-28 23:52:20,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 233 flow [2021-04-28 23:52:20,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:52:20,842 INFO L241 Difference]: Finished difference. Result has 79 places, 45 transitions, 138 flow [2021-04-28 23:52:20,845 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=79, PETRI_TRANSITIONS=45} [2021-04-28 23:52:20,846 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-28 23:52:20,846 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:20,847 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-28 23:52:20,847 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-28 23:52:20,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-28 23:52:20,886 INFO L129 PetriNetUnfolder]: 88/321 cut-off events. [2021-04-28 23:52:20,887 INFO L130 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2021-04-28 23:52:20,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 321 events. 88/321 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2165 event pairs, 22 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 569. Up to 87 conditions per place. [2021-04-28 23:52:20,896 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-28 23:52:20,903 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:52:20,903 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:20,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-28 23:52:20,905 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-28 23:52:20,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:20,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:20,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:20,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:52:20,907 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:20,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:20,907 INFO L82 PathProgramCache]: Analyzing trace with hash 642050643, now seen corresponding path program 1 times [2021-04-28 23:52:20,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:20,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467130929] [2021-04-28 23:52:20,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:20,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:20,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:20,986 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:20,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:20,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467130929] [2021-04-28 23:52:20,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:20,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:52:20,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122680740] [2021-04-28 23:52:20,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:52:20,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:20,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:52:20,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:52:21,001 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:21,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:21,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:21,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:21,058 INFO L129 PetriNetUnfolder]: 73/255 cut-off events. [2021-04-28 23:52:21,058 INFO L130 PetriNetUnfolder]: For 53/154 co-relation queries the response was YES. [2021-04-28 23:52:21,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 255 events. 73/255 cut-off events. For 53/154 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1469 event pairs, 6 based on Foata normal form. 2/176 useless extension candidates. Maximal degree in co-relation 608. Up to 72 conditions per place. [2021-04-28 23:52:21,062 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 14 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2021-04-28 23:52:21,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 222 flow [2021-04-28 23:52:21,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:52:21,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:52:21,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:52:21,066 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:52:21,066 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:21,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,073 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,073 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:52:21,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 222 flow [2021-04-28 23:52:21,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:52:21,078 INFO L241 Difference]: Finished difference. Result has 54 places, 49 transitions, 182 flow [2021-04-28 23:52:21,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2021-04-28 23:52:21,079 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-28 23:52:21,079 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:21,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 49 transitions, 182 flow [2021-04-28 23:52:21,080 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 49 transitions, 182 flow [2021-04-28 23:52:21,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 49 transitions, 182 flow [2021-04-28 23:52:21,107 INFO L129 PetriNetUnfolder]: 73/255 cut-off events. [2021-04-28 23:52:21,107 INFO L130 PetriNetUnfolder]: For 106/110 co-relation queries the response was YES. [2021-04-28 23:52:21,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 255 events. 73/255 cut-off events. For 106/110 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1516 event pairs, 18 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 557. Up to 72 conditions per place. [2021-04-28 23:52:21,114 INFO L146 LiptonReduction]: Number of co-enabled transitions 1152 [2021-04-28 23:52:21,121 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:52:21,121 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:21,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-28 23:52:21,123 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 182 flow [2021-04-28 23:52:21,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,124 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:21,124 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:21,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:52:21,125 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:21,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:21,125 INFO L82 PathProgramCache]: Analyzing trace with hash 642050891, now seen corresponding path program 1 times [2021-04-28 23:52:21,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:21,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157248735] [2021-04-28 23:52:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:21,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:21,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:21,232 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:21,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:21,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157248735] [2021-04-28 23:52:21,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:21,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:52:21,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226706346] [2021-04-28 23:52:21,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:52:21,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:21,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:52:21,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:52:21,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:21,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:21,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:21,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:21,300 INFO L129 PetriNetUnfolder]: 56/207 cut-off events. [2021-04-28 23:52:21,300 INFO L130 PetriNetUnfolder]: For 116/228 co-relation queries the response was YES. [2021-04-28 23:52:21,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 207 events. 56/207 cut-off events. For 116/228 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1103 event pairs, 0 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 564. Up to 60 conditions per place. [2021-04-28 23:52:21,304 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 16 selfloop transitions, 12 changer transitions 0/59 dead transitions. [2021-04-28 23:52:21,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 302 flow [2021-04-28 23:52:21,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:52:21,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:52:21,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:52:21,307 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:52:21,307 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:21,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,313 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,314 INFO L185 Difference]: Start difference. First operand has 54 places, 49 transitions, 182 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:52:21,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 302 flow [2021-04-28 23:52:21,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:52:21,319 INFO L241 Difference]: Finished difference. Result has 59 places, 55 transitions, 284 flow [2021-04-28 23:52:21,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2021-04-28 23:52:21,320 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-28 23:52:21,320 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:21,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 55 transitions, 284 flow [2021-04-28 23:52:21,320 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 55 transitions, 284 flow [2021-04-28 23:52:21,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 284 flow [2021-04-28 23:52:21,347 INFO L129 PetriNetUnfolder]: 56/219 cut-off events. [2021-04-28 23:52:21,347 INFO L130 PetriNetUnfolder]: For 254/269 co-relation queries the response was YES. [2021-04-28 23:52:21,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 219 events. 56/219 cut-off events. For 254/269 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1254 event pairs, 1 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 596. Up to 60 conditions per place. [2021-04-28 23:52:21,354 INFO L146 LiptonReduction]: Number of co-enabled transitions 1342 [2021-04-28 23:52:21,362 INFO L158 LiptonReduction]: Checked pairs total: 34 [2021-04-28 23:52:21,363 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:21,363 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-28 23:52:21,365 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 284 flow [2021-04-28 23:52:21,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,366 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:21,366 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:21,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:52:21,366 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:21,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:21,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1571264036, now seen corresponding path program 1 times [2021-04-28 23:52:21,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:21,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576855832] [2021-04-28 23:52:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:21,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:21,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:52:21,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:21,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:21,437 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:21,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:21,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576855832] [2021-04-28 23:52:21,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:21,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:52:21,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164012118] [2021-04-28 23:52:21,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:52:21,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:21,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:52:21,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:52:21,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:21,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:21,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:21,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:21,514 INFO L129 PetriNetUnfolder]: 43/183 cut-off events. [2021-04-28 23:52:21,514 INFO L130 PetriNetUnfolder]: For 209/327 co-relation queries the response was YES. [2021-04-28 23:52:21,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 183 events. 43/183 cut-off events. For 209/327 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 982 event pairs, 0 based on Foata normal form. 11/131 useless extension candidates. Maximal degree in co-relation 582. Up to 47 conditions per place. [2021-04-28 23:52:21,518 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 15 selfloop transitions, 18 changer transitions 0/64 dead transitions. [2021-04-28 23:52:21,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 426 flow [2021-04-28 23:52:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:52:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:52:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:52:21,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:52:21,521 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:21,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:52:21,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,528 INFO L185 Difference]: Start difference. First operand has 59 places, 55 transitions, 284 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:52:21,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 426 flow [2021-04-28 23:52:21,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:52:21,537 INFO L241 Difference]: Finished difference. Result has 64 places, 60 transitions, 421 flow [2021-04-28 23:52:21,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=421, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2021-04-28 23:52:21,538 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -14 predicate places. [2021-04-28 23:52:21,539 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:21,539 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 421 flow [2021-04-28 23:52:21,539 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 421 flow [2021-04-28 23:52:21,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 421 flow [2021-04-28 23:52:21,565 INFO L129 PetriNetUnfolder]: 43/198 cut-off events. [2021-04-28 23:52:21,565 INFO L130 PetriNetUnfolder]: For 386/415 co-relation queries the response was YES. [2021-04-28 23:52:21,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 198 events. 43/198 cut-off events. For 386/415 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1175 event pairs, 0 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 621. Up to 47 conditions per place. [2021-04-28 23:52:21,573 INFO L146 LiptonReduction]: Number of co-enabled transitions 1498 [2021-04-28 23:52:21,585 INFO L158 LiptonReduction]: Checked pairs total: 39 [2021-04-28 23:52:21,585 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:21,586 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-04-28 23:52:21,590 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 421 flow [2021-04-28 23:52:21,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,591 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:21,591 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:21,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:52:21,591 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:21,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:21,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1342747754, now seen corresponding path program 1 times [2021-04-28 23:52:21,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:21,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147450333] [2021-04-28 23:52:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:21,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:21,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:21,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:21,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147450333] [2021-04-28 23:52:21,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:21,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:52:21,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173759985] [2021-04-28 23:52:21,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:52:21,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:21,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:52:21,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:52:21,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 165 [2021-04-28 23:52:21,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 421 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:21,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 165 [2021-04-28 23:52:21,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:21,722 INFO L129 PetriNetUnfolder]: 41/167 cut-off events. [2021-04-28 23:52:21,722 INFO L130 PetriNetUnfolder]: For 461/566 co-relation queries the response was YES. [2021-04-28 23:52:21,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 167 events. 41/167 cut-off events. For 461/566 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 832 event pairs, 0 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 605. Up to 46 conditions per place. [2021-04-28 23:52:21,726 INFO L132 encePairwiseOnDemand]: 161/165 looper letters, 9 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2021-04-28 23:52:21,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 523 flow [2021-04-28 23:52:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:52:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:52:21,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2021-04-28 23:52:21,729 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.795959595959596 [2021-04-28 23:52:21,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2021-04-28 23:52:21,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2021-04-28 23:52:21,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:21,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2021-04-28 23:52:21,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,735 INFO L185 Difference]: Start difference. First operand has 64 places, 60 transitions, 421 flow. Second operand 3 states and 394 transitions. [2021-04-28 23:52:21,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 523 flow [2021-04-28 23:52:21,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 66 transitions, 517 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:52:21,742 INFO L241 Difference]: Finished difference. Result has 66 places, 66 transitions, 522 flow [2021-04-28 23:52:21,743 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2021-04-28 23:52:21,743 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -12 predicate places. [2021-04-28 23:52:21,743 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:21,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 522 flow [2021-04-28 23:52:21,744 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 522 flow [2021-04-28 23:52:21,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 522 flow [2021-04-28 23:52:21,772 INFO L129 PetriNetUnfolder]: 41/182 cut-off events. [2021-04-28 23:52:21,772 INFO L130 PetriNetUnfolder]: For 421/450 co-relation queries the response was YES. [2021-04-28 23:52:21,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 182 events. 41/182 cut-off events. For 421/450 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1038 event pairs, 1 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 618. Up to 46 conditions per place. [2021-04-28 23:52:21,779 INFO L146 LiptonReduction]: Number of co-enabled transitions 1656 [2021-04-28 23:52:21,793 INFO L158 LiptonReduction]: Checked pairs total: 45 [2021-04-28 23:52:21,793 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:21,793 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-04-28 23:52:21,795 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 522 flow [2021-04-28 23:52:21,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:21,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:21,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:52:21,796 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:21,796 INFO L82 PathProgramCache]: Analyzing trace with hash 997422963, now seen corresponding path program 1 times [2021-04-28 23:52:21,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:21,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618865214] [2021-04-28 23:52:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:21,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:52:21,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:52:21,859 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:52:21,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:52:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:21,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618865214] [2021-04-28 23:52:21,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:21,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:52:21,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194022506] [2021-04-28 23:52:21,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:52:21,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:21,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:52:21,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:52:21,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:21,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 66 transitions, 522 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:21,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:21,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:21,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:23,382 INFO L129 PetriNetUnfolder]: 5878/9915 cut-off events. [2021-04-28 23:52:23,382 INFO L130 PetriNetUnfolder]: For 5067/5974 co-relation queries the response was YES. [2021-04-28 23:52:23,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20950 conditions, 9915 events. 5878/9915 cut-off events. For 5067/5974 co-relation queries the response was YES. Maximal size of possible extension queue 2745. Compared 91464 event pairs, 2457 based on Foata normal form. 131/2687 useless extension candidates. Maximal degree in co-relation 20925. Up to 6193 conditions per place. [2021-04-28 23:52:23,481 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 29 selfloop transitions, 27 changer transitions 0/101 dead transitions. [2021-04-28 23:52:23,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 101 transitions, 704 flow [2021-04-28 23:52:23,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:52:23,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:52:23,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-28 23:52:23,484 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6921212121212121 [2021-04-28 23:52:23,484 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-28 23:52:23,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-28 23:52:23,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:23,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-28 23:52:23,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:23,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:23,493 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:23,493 INFO L185 Difference]: Start difference. First operand has 66 places, 66 transitions, 522 flow. Second operand 5 states and 571 transitions. [2021-04-28 23:52:23,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 101 transitions, 704 flow [2021-04-28 23:52:23,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 101 transitions, 695 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:52:23,506 INFO L241 Difference]: Finished difference. Result has 72 places, 91 transitions, 716 flow [2021-04-28 23:52:23,507 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=716, PETRI_PLACES=72, PETRI_TRANSITIONS=91} [2021-04-28 23:52:23,507 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -6 predicate places. [2021-04-28 23:52:23,507 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:23,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 91 transitions, 716 flow [2021-04-28 23:52:23,508 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 91 transitions, 716 flow [2021-04-28 23:52:23,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 91 transitions, 716 flow [2021-04-28 23:52:24,768 INFO L129 PetriNetUnfolder]: 5912/10349 cut-off events. [2021-04-28 23:52:24,769 INFO L130 PetriNetUnfolder]: For 5765/6613 co-relation queries the response was YES. [2021-04-28 23:52:24,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29765 conditions, 10349 events. 5912/10349 cut-off events. For 5765/6613 co-relation queries the response was YES. Maximal size of possible extension queue 2335. Compared 98051 event pairs, 2440 based on Foata normal form. 21/3088 useless extension candidates. Maximal degree in co-relation 29738. Up to 8981 conditions per place. [2021-04-28 23:52:25,092 INFO L146 LiptonReduction]: Number of co-enabled transitions 2274 [2021-04-28 23:52:25,121 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:25,122 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:25,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1615 [2021-04-28 23:52:25,123 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 91 transitions, 716 flow [2021-04-28 23:52:25,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:25,124 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:25,124 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:25,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:52:25,125 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:25,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:25,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1205511196, now seen corresponding path program 1 times [2021-04-28 23:52:25,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:25,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646824529] [2021-04-28 23:52:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:25,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:25,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:25,170 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:52:25,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:52:25,175 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:52:25,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:52:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:25,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646824529] [2021-04-28 23:52:25,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:25,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:52:25,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718536084] [2021-04-28 23:52:25,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:52:25,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:25,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:52:25,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:52:25,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:25,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 91 transitions, 716 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:25,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:25,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:25,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:27,115 INFO L129 PetriNetUnfolder]: 5278/10119 cut-off events. [2021-04-28 23:52:27,115 INFO L130 PetriNetUnfolder]: For 8918/32341 co-relation queries the response was YES. [2021-04-28 23:52:27,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38867 conditions, 10119 events. 5278/10119 cut-off events. For 8918/32341 co-relation queries the response was YES. Maximal size of possible extension queue 3051. Compared 106062 event pairs, 459 based on Foata normal form. 213/3304 useless extension candidates. Maximal degree in co-relation 38838. Up to 8789 conditions per place. [2021-04-28 23:52:27,225 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 21 selfloop transitions, 61 changer transitions 9/136 dead transitions. [2021-04-28 23:52:27,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 136 transitions, 1147 flow [2021-04-28 23:52:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:52:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:52:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-28 23:52:27,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6935064935064935 [2021-04-28 23:52:27,229 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-28 23:52:27,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-28 23:52:27,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:27,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-28 23:52:27,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:27,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:27,237 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:27,237 INFO L185 Difference]: Start difference. First operand has 72 places, 91 transitions, 716 flow. Second operand 7 states and 801 transitions. [2021-04-28 23:52:27,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 136 transitions, 1147 flow [2021-04-28 23:52:27,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 136 transitions, 1147 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:52:27,324 INFO L241 Difference]: Finished difference. Result has 81 places, 125 transitions, 1145 flow [2021-04-28 23:52:27,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1145, PETRI_PLACES=81, PETRI_TRANSITIONS=125} [2021-04-28 23:52:27,325 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2021-04-28 23:52:27,325 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:27,325 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 125 transitions, 1145 flow [2021-04-28 23:52:27,326 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 125 transitions, 1145 flow [2021-04-28 23:52:27,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 125 transitions, 1145 flow [2021-04-28 23:52:28,497 INFO L129 PetriNetUnfolder]: 3682/8394 cut-off events. [2021-04-28 23:52:28,498 INFO L130 PetriNetUnfolder]: For 11116/14203 co-relation queries the response was YES. [2021-04-28 23:52:28,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36586 conditions, 8394 events. 3682/8394 cut-off events. For 11116/14203 co-relation queries the response was YES. Maximal size of possible extension queue 2547. Compared 99108 event pairs, 460 based on Foata normal form. 8/2498 useless extension candidates. Maximal degree in co-relation 36554. Up to 7052 conditions per place. [2021-04-28 23:52:28,649 INFO L146 LiptonReduction]: Number of co-enabled transitions 2766 [2021-04-28 23:52:28,685 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:28,685 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:28,685 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1360 [2021-04-28 23:52:28,687 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 125 transitions, 1145 flow [2021-04-28 23:52:28,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:28,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:28,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:28,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:52:28,688 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:28,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1479848145, now seen corresponding path program 1 times [2021-04-28 23:52:28,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:28,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680610361] [2021-04-28 23:52:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:28,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:28,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:52:28,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:28,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:28,730 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:28,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:28,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680610361] [2021-04-28 23:52:28,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:28,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:52:28,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530279997] [2021-04-28 23:52:28,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:52:28,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:28,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:52:28,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:52:28,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:28,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 125 transitions, 1145 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:28,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:28,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:28,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:30,613 INFO L129 PetriNetUnfolder]: 5733/11846 cut-off events. [2021-04-28 23:52:30,613 INFO L130 PetriNetUnfolder]: For 20282/59466 co-relation queries the response was YES. [2021-04-28 23:52:30,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50964 conditions, 11846 events. 5733/11846 cut-off events. For 20282/59466 co-relation queries the response was YES. Maximal size of possible extension queue 3156. Compared 135872 event pairs, 891 based on Foata normal form. 123/3282 useless extension candidates. Maximal degree in co-relation 50930. Up to 10217 conditions per place. [2021-04-28 23:52:30,699 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 10 selfloop transitions, 29 changer transitions 0/129 dead transitions. [2021-04-28 23:52:30,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 129 transitions, 1268 flow [2021-04-28 23:52:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:52:30,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:52:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2021-04-28 23:52:30,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6530303030303031 [2021-04-28 23:52:30,702 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 431 transitions. [2021-04-28 23:52:30,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 431 transitions. [2021-04-28 23:52:30,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:30,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 431 transitions. [2021-04-28 23:52:30,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:30,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:30,706 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:30,707 INFO L185 Difference]: Start difference. First operand has 81 places, 125 transitions, 1145 flow. Second operand 4 states and 431 transitions. [2021-04-28 23:52:30,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 129 transitions, 1268 flow [2021-04-28 23:52:32,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 129 transitions, 1173 flow, removed 33 selfloop flow, removed 2 redundant places. [2021-04-28 23:52:32,708 INFO L241 Difference]: Finished difference. Result has 85 places, 127 transitions, 1203 flow [2021-04-28 23:52:32,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1203, PETRI_PLACES=85, PETRI_TRANSITIONS=127} [2021-04-28 23:52:32,708 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 7 predicate places. [2021-04-28 23:52:32,709 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:32,709 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 127 transitions, 1203 flow [2021-04-28 23:52:32,709 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 127 transitions, 1203 flow [2021-04-28 23:52:32,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 127 transitions, 1203 flow [2021-04-28 23:52:33,924 INFO L129 PetriNetUnfolder]: 5877/12242 cut-off events. [2021-04-28 23:52:33,925 INFO L130 PetriNetUnfolder]: For 14202/23900 co-relation queries the response was YES. [2021-04-28 23:52:33,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47165 conditions, 12242 events. 5877/12242 cut-off events. For 14202/23900 co-relation queries the response was YES. Maximal size of possible extension queue 3336. Compared 143482 event pairs, 893 based on Foata normal form. 8/3400 useless extension candidates. Maximal degree in co-relation 47130. Up to 8719 conditions per place. [2021-04-28 23:52:34,118 INFO L146 LiptonReduction]: Number of co-enabled transitions 2990 [2021-04-28 23:52:34,154 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:34,154 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:34,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1446 [2021-04-28 23:52:34,156 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 127 transitions, 1203 flow [2021-04-28 23:52:34,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:34,157 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:34,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:34,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:52:34,157 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:34,158 INFO L82 PathProgramCache]: Analyzing trace with hash 127465585, now seen corresponding path program 1 times [2021-04-28 23:52:34,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:34,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600099971] [2021-04-28 23:52:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:34,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:34,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:34,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:34,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:34,433 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2021-04-28 23:52:34,440 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:52:34,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:52:34,451 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:52:34,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:52:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:34,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600099971] [2021-04-28 23:52:34,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:34,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:52:34,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349816111] [2021-04-28 23:52:34,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:52:34,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:34,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:52:34,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:52:34,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:34,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 127 transitions, 1203 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:34,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:34,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:34,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:36,143 INFO L129 PetriNetUnfolder]: 4899/11213 cut-off events. [2021-04-28 23:52:36,143 INFO L130 PetriNetUnfolder]: For 17500/105627 co-relation queries the response was YES. [2021-04-28 23:52:36,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52974 conditions, 11213 events. 4899/11213 cut-off events. For 17500/105627 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 138755 event pairs, 0 based on Foata normal form. 296/3526 useless extension candidates. Maximal degree in co-relation 52937. Up to 7627 conditions per place. [2021-04-28 23:52:36,209 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 4 selfloop transitions, 45 changer transitions 81/155 dead transitions. [2021-04-28 23:52:36,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 155 transitions, 1630 flow [2021-04-28 23:52:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:52:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:52:36,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1013 transitions. [2021-04-28 23:52:36,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6821548821548822 [2021-04-28 23:52:36,215 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1013 transitions. [2021-04-28 23:52:36,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1013 transitions. [2021-04-28 23:52:36,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:36,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1013 transitions. [2021-04-28 23:52:36,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.55555555555556) internal successors, (1013), 9 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:36,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:36,224 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:36,225 INFO L185 Difference]: Start difference. First operand has 85 places, 127 transitions, 1203 flow. Second operand 9 states and 1013 transitions. [2021-04-28 23:52:36,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 155 transitions, 1630 flow [2021-04-28 23:52:38,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 155 transitions, 1626 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-04-28 23:52:38,712 INFO L241 Difference]: Finished difference. Result has 96 places, 73 transitions, 721 flow [2021-04-28 23:52:38,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=721, PETRI_PLACES=96, PETRI_TRANSITIONS=73} [2021-04-28 23:52:38,712 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 18 predicate places. [2021-04-28 23:52:38,713 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:38,713 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 73 transitions, 721 flow [2021-04-28 23:52:38,713 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 73 transitions, 721 flow [2021-04-28 23:52:38,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 73 transitions, 721 flow [2021-04-28 23:52:38,832 INFO L129 PetriNetUnfolder]: 106/430 cut-off events. [2021-04-28 23:52:38,832 INFO L130 PetriNetUnfolder]: For 2662/3087 co-relation queries the response was YES. [2021-04-28 23:52:38,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 430 events. 106/430 cut-off events. For 2662/3087 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3472 event pairs, 0 based on Foata normal form. 2/173 useless extension candidates. Maximal degree in co-relation 2217. Up to 244 conditions per place. [2021-04-28 23:52:38,839 INFO L146 LiptonReduction]: Number of co-enabled transitions 996 [2021-04-28 23:52:38,843 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:38,843 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:38,843 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-04-28 23:52:38,845 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 721 flow [2021-04-28 23:52:38,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:38,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:38,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:38,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:52:38,847 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:38,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1145735411, now seen corresponding path program 1 times [2021-04-28 23:52:38,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:38,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112298009] [2021-04-28 23:52:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:38,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:38,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:38,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:38,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112298009] [2021-04-28 23:52:38,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:38,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:52:38,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457033953] [2021-04-28 23:52:38,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:52:38,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:38,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:52:38,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:52:38,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 165 [2021-04-28 23:52:38,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 721 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:38,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:38,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 165 [2021-04-28 23:52:38,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:39,018 INFO L129 PetriNetUnfolder]: 195/757 cut-off events. [2021-04-28 23:52:39,019 INFO L130 PetriNetUnfolder]: For 5855/6299 co-relation queries the response was YES. [2021-04-28 23:52:39,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3833 conditions, 757 events. 195/757 cut-off events. For 5855/6299 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 6860 event pairs, 0 based on Foata normal form. 33/319 useless extension candidates. Maximal degree in co-relation 3791. Up to 448 conditions per place. [2021-04-28 23:52:39,023 INFO L132 encePairwiseOnDemand]: 161/165 looper letters, 3 selfloop transitions, 3 changer transitions 33/77 dead transitions. [2021-04-28 23:52:39,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 77 transitions, 814 flow [2021-04-28 23:52:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:52:39,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:52:39,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 467 transitions. [2021-04-28 23:52:39,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7075757575757575 [2021-04-28 23:52:39,027 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 467 transitions. [2021-04-28 23:52:39,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 467 transitions. [2021-04-28 23:52:39,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:39,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 467 transitions. [2021-04-28 23:52:39,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,032 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,032 INFO L185 Difference]: Start difference. First operand has 88 places, 73 transitions, 721 flow. Second operand 4 states and 467 transitions. [2021-04-28 23:52:39,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 77 transitions, 814 flow [2021-04-28 23:52:39,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 77 transitions, 574 flow, removed 37 selfloop flow, removed 18 redundant places. [2021-04-28 23:52:39,058 INFO L241 Difference]: Finished difference. Result has 74 places, 44 transitions, 284 flow [2021-04-28 23:52:39,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=74, PETRI_TRANSITIONS=44} [2021-04-28 23:52:39,058 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -4 predicate places. [2021-04-28 23:52:39,058 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:39,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 44 transitions, 284 flow [2021-04-28 23:52:39,059 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 44 transitions, 284 flow [2021-04-28 23:52:39,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 44 transitions, 284 flow [2021-04-28 23:52:39,079 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-04-28 23:52:39,079 INFO L130 PetriNetUnfolder]: For 876/876 co-relation queries the response was YES. [2021-04-28 23:52:39,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 213 events. 81/213 cut-off events. For 876/876 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1185 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 751. Up to 109 conditions per place. [2021-04-28 23:52:39,083 INFO L146 LiptonReduction]: Number of co-enabled transitions 238 [2021-04-28 23:52:39,087 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:39,087 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:39,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-28 23:52:39,088 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 284 flow [2021-04-28 23:52:39,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:39,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:39,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:52:39,089 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:39,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:39,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1886694558, now seen corresponding path program 1 times [2021-04-28 23:52:39,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:39,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541530912] [2021-04-28 23:52:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:39,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:39,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:52:39,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:39,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:39,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:39,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:39,134 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:39,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:39,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541530912] [2021-04-28 23:52:39,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:39,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:52:39,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562218647] [2021-04-28 23:52:39,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:52:39,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:39,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:52:39,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:52:39,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:52:39,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 284 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:39,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:52:39,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:39,182 INFO L129 PetriNetUnfolder]: 81/186 cut-off events. [2021-04-28 23:52:39,182 INFO L130 PetriNetUnfolder]: For 1101/1102 co-relation queries the response was YES. [2021-04-28 23:52:39,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 186 events. 81/186 cut-off events. For 1101/1102 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 800 event pairs, 0 based on Foata normal form. 28/109 useless extension candidates. Maximal degree in co-relation 526. Up to 109 conditions per place. [2021-04-28 23:52:39,183 INFO L132 encePairwiseOnDemand]: 160/165 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-04-28 23:52:39,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 43 transitions, 280 flow [2021-04-28 23:52:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:52:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:52:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2021-04-28 23:52:39,187 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6323232323232323 [2021-04-28 23:52:39,187 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 626 transitions. [2021-04-28 23:52:39,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 626 transitions. [2021-04-28 23:52:39,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:39,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 626 transitions. [2021-04-28 23:52:39,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,193 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,194 INFO L185 Difference]: Start difference. First operand has 62 places, 44 transitions, 284 flow. Second operand 6 states and 626 transitions. [2021-04-28 23:52:39,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 43 transitions, 280 flow [2021-04-28 23:52:39,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 212 flow, removed 2 selfloop flow, removed 19 redundant places. [2021-04-28 23:52:39,196 INFO L241 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-04-28 23:52:39,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-04-28 23:52:39,197 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -31 predicate places. [2021-04-28 23:52:39,197 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:39,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:52:39,197 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:52:39,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:52:39,198 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:52:39,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:52:39,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:52:39,198 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:52:39,198 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:39,198 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:39,198 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-28 23:52:39,199 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:52:39,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:39,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:52:39,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:52:39 BasicIcfg [2021-04-28 23:52:39,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:52:39,207 INFO L168 Benchmark]: Toolchain (without parser) took 29439.18 ms. Allocated memory was 333.4 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 307.4 MB in the beginning and 6.4 GB in the end (delta: -6.1 GB). Peak memory consumption was 535.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:39,207 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 333.4 MB. Free memory is still 302.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:52:39,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.21 ms. Allocated memory is still 333.4 MB. Free memory was 304.3 MB in the beginning and 303.3 MB in the end (delta: 996.6 kB). Peak memory consumption was 29.3 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:39,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.48 ms. Allocated memory is still 333.4 MB. Free memory was 303.3 MB in the beginning and 300.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:39,208 INFO L168 Benchmark]: Boogie Preprocessor took 29.76 ms. Allocated memory is still 333.4 MB. Free memory was 300.9 MB in the beginning and 300.2 MB in the end (delta: 746.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:52:39,208 INFO L168 Benchmark]: RCFGBuilder took 462.80 ms. Allocated memory is still 333.4 MB. Free memory was 299.1 MB in the beginning and 277.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:39,209 INFO L168 Benchmark]: TraceAbstraction took 28174.25 ms. Allocated memory was 333.4 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 276.1 MB in the beginning and 6.4 GB in the end (delta: -6.1 GB). Peak memory consumption was 501.5 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:39,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 333.4 MB. Free memory is still 302.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 663.21 ms. Allocated memory is still 333.4 MB. Free memory was 304.3 MB in the beginning and 303.3 MB in the end (delta: 996.6 kB). Peak memory consumption was 29.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.48 ms. Allocated memory is still 333.4 MB. Free memory was 303.3 MB in the beginning and 300.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.76 ms. Allocated memory is still 333.4 MB. Free memory was 300.9 MB in the beginning and 300.2 MB in the end (delta: 746.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 462.80 ms. Allocated memory is still 333.4 MB. Free memory was 299.1 MB in the beginning and 277.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28174.25 ms. Allocated memory was 333.4 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 276.1 MB in the beginning and 6.4 GB in the end (delta: -6.1 GB). Peak memory consumption was 501.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8805.9ms, 68 PlacesBefore, 78 PlacesAfterwards, 59 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 6612 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1906, positive: 1706, positive conditional: 1706, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 959, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 959, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 959, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 423, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 323, negative conditional: 0, negative unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1906, positive: 816, positive conditional: 816, positive unconditional: 0, negative: 131, negative conditional: 131, negative unconditional: 0, unknown: 959, unknown conditional: 959, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.8ms, 79 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.6ms, 54 PlacesBefore, 54 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.5ms, 59 PlacesBefore, 59 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.4ms, 64 PlacesBefore, 64 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.4ms, 66 PlacesBefore, 66 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 1656 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1613.6ms, 72 PlacesBefore, 72 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 2274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1359.3ms, 81 PlacesBefore, 81 PlacesAfterwards, 125 TransitionsBefore, 125 TransitionsAfterwards, 2766 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1445.4ms, 85 PlacesBefore, 85 PlacesAfterwards, 127 TransitionsBefore, 127 TransitionsAfterwards, 2990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 130.0ms, 96 PlacesBefore, 88 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 996 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.4ms, 74 PlacesBefore, 62 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 47 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 28023.8ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 12790.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8955.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 96 SDtfs, 84 SDslu, 30 SDs, 0 SdLazy, 359 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 371.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 353.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1203occurred in iteration=8, InterpolantAutomatonStates: 53, 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: 30.2ms SsaConstructionTime, 236.2ms SatisfiabilityAnalysisTime, 901.0ms InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...