/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/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:51:20,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:51:20,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:51:21,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:51:21,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:51:21,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:51:21,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:51:21,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:51:21,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:51:21,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:51:21,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:51:21,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:51:21,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:51:21,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:51:21,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:51:21,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:51:21,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:51:21,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:51:21,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:51:21,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:51:21,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:51:21,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:51:21,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:51:21,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:51:21,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:51:21,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:51:21,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:51:21,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:51:21,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:51:21,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:51:21,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:51:21,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:51:21,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:51:21,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:51:21,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:51:21,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:51:21,095 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 23:51:21,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:51:21,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:51:21,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:51:21,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:51:21,125 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:51:21,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:51:21,125 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:51:21,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:51:21,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:51:21,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:51:21,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:51:21,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:51:21,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:51:21,127 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:51:21,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:51:21,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:51:21,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:51:21,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:51:21,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:51:21,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:51:21,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:51:21,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:51:21,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:51:21,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:51:21,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:51:21,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:51:21,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:51:21,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:51:21,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:51:21,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:51:21,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:51:21,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:51:21,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:51:21,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:51:21,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:51:21,576 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:51:21,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2021-04-28 23:51:21,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ef67c48/c6f334b26a3e4aefb68b6d2926966e8e/FLAG53fff12da [2021-04-28 23:51:22,377 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:51:22,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2021-04-28 23:51:22,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ef67c48/c6f334b26a3e4aefb68b6d2926966e8e/FLAG53fff12da [2021-04-28 23:51:22,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ef67c48/c6f334b26a3e4aefb68b6d2926966e8e [2021-04-28 23:51:22,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:51:22,642 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:51:22,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:51:22,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:51:22,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:51:22,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:51:22" (1/1) ... [2021-04-28 23:51:22,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c60e447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:22, skipping insertion in model container [2021-04-28 23:51:22,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:51:22" (1/1) ... [2021-04-28 23:51:22,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:51:22,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:51:22,879 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/safe014_pso.oepc.i[950,963] [2021-04-28 23:51:23,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:51:23,068 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:51:23,083 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/safe014_pso.oepc.i[950,963] [2021-04-28 23:51:23,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:51:23,302 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:51:23,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23 WrapperNode [2021-04-28 23:51:23,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:51:23,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:51:23,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:51:23,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:51:23,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:51:23,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:51:23,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:51:23,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:51:23,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (1/1) ... [2021-04-28 23:51:23,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:51:23,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:51:23,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:51:23,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:51:23,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (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 23:51:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:51:23,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:51:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:51:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:51:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:51:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:51:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:51:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:51:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:51:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:51:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:51:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:51:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:51:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:51:23,596 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 23:51:24,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:51:24,098 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:51:24,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:51:24 BoogieIcfgContainer [2021-04-28 23:51:24,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:51:24,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:51:24,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:51:24,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:51:24,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:51:22" (1/3) ... [2021-04-28 23:51:24,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408118c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:51:24, skipping insertion in model container [2021-04-28 23:51:24,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:23" (2/3) ... [2021-04-28 23:51:24,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408118c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:51:24, skipping insertion in model container [2021-04-28 23:51:24,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:51:24" (3/3) ... [2021-04-28 23:51:24,111 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2021-04-28 23:51:24,121 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:51:24,127 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:51:24,128 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:51:24,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,165 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,167 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:24,188 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:51:24,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:51:24,251 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:51:24,251 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:51:24,252 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:51:24,252 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:51:24,252 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:51:24,252 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:51:24,252 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:51:24,252 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:51:24,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:51:24,320 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-28 23:51:24,320 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:24,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:51:24,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:51:24,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:24,333 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:24,356 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:24,362 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:24,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:24,387 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-28 23:51:24,387 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:24,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:51:24,395 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:51:27,790 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:27,952 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:28,353 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:28,507 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:28,665 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:28,830 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:28,986 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:29,131 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:29,512 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:30,459 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 23:51:30,704 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 23:51:30,956 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 23:51:31,235 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 23:51:31,797 INFO L158 LiptonReduction]: Checked pairs total: 5648 [2021-04-28 23:51:31,798 INFO L160 LiptonReduction]: Total number of compositions: 84 [2021-04-28 23:51:31,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7471 [2021-04-28 23:51:31,823 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-28 23:51:31,823 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:31,823 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:31,824 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:31,824 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:31,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:31,831 INFO L82 PathProgramCache]: Analyzing trace with hash 351986949, now seen corresponding path program 1 times [2021-04-28 23:51:31,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:31,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281278691] [2021-04-28 23:51:31,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:32,198 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:32,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:32,212 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 23:51:32,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281278691] [2021-04-28 23:51:32,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:32,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:32,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967479867] [2021-04-28 23:51:32,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:32,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:32,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:32,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:32,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:32,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 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 23:51:32,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:32,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:32,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:32,491 INFO L129 PetriNetUnfolder]: 247/757 cut-off events. [2021-04-28 23:51:32,491 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:32,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1196 conditions, 757 events. 247/757 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 6384 event pairs, 93 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 1157. Up to 271 conditions per place. [2021-04-28 23:51:32,499 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 6 selfloop transitions, 6 changer transitions 30/74 dead transitions. [2021-04-28 23:51:32,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 219 flow [2021-04-28 23:51:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:32,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:32,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-04-28 23:51:32,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7358490566037735 [2021-04-28 23:51:32,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-04-28 23:51:32,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-04-28 23:51:32,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:32,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-04-28 23:51:32,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:32,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 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 23:51:32,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 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 23:51:32,539 INFO L185 Difference]: Start difference. First operand has 75 places, 65 transitions, 139 flow. Second operand 3 states and 351 transitions. [2021-04-28 23:51:32,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 219 flow [2021-04-28 23:51:32,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 74 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:51:32,546 INFO L241 Difference]: Finished difference. Result has 76 places, 44 transitions, 130 flow [2021-04-28 23:51:32,549 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=76, PETRI_TRANSITIONS=44} [2021-04-28 23:51:32,550 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2021-04-28 23:51:32,550 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:32,550 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 44 transitions, 130 flow [2021-04-28 23:51:32,551 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 44 transitions, 130 flow [2021-04-28 23:51:32,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-28 23:51:32,573 INFO L129 PetriNetUnfolder]: 47/217 cut-off events. [2021-04-28 23:51:32,574 INFO L130 PetriNetUnfolder]: For 23/31 co-relation queries the response was YES. [2021-04-28 23:51:32,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 217 events. 47/217 cut-off events. For 23/31 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1333 event pairs, 15 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 358. Up to 66 conditions per place. [2021-04-28 23:51:32,580 INFO L146 LiptonReduction]: Number of co-enabled transitions 1004 [2021-04-28 23:51:32,593 INFO L158 LiptonReduction]: Checked pairs total: 197 [2021-04-28 23:51:32,593 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:32,594 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-28 23:51:32,596 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-28 23:51:32,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 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 23:51:32,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:32,597 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:32,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:51:32,597 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:32,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:32,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1973307743, now seen corresponding path program 1 times [2021-04-28 23:51:32,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:32,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418767964] [2021-04-28 23:51:32,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:32,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:32,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:32,673 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:32,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:32,691 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 23:51:32,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418767964] [2021-04-28 23:51:32,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:32,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:32,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598122831] [2021-04-28 23:51:32,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:32,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:32,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:32,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:32,698 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:32,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 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 23:51:32,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:32,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:32,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:32,747 INFO L129 PetriNetUnfolder]: 32/159 cut-off events. [2021-04-28 23:51:32,748 INFO L130 PetriNetUnfolder]: For 40/141 co-relation queries the response was YES. [2021-04-28 23:51:32,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 159 events. 32/159 cut-off events. For 40/141 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 909 event pairs, 1 based on Foata normal form. 2/104 useless extension candidates. Maximal degree in co-relation 336. Up to 48 conditions per place. [2021-04-28 23:51:32,751 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 13 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2021-04-28 23:51:32,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 210 flow [2021-04-28 23:51:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2021-04-28 23:51:32,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6918238993710691 [2021-04-28 23:51:32,761 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 440 transitions. [2021-04-28 23:51:32,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 440 transitions. [2021-04-28 23:51:32,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:32,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 440 transitions. [2021-04-28 23:51:32,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:32,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:32,770 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:32,770 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 4 states and 440 transitions. [2021-04-28 23:51:32,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 210 flow [2021-04-28 23:51:32,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 52 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:51:32,774 INFO L241 Difference]: Finished difference. Result has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:32,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2021-04-28 23:51:32,775 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -21 predicate places. [2021-04-28 23:51:32,775 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:32,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:32,776 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:32,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:32,793 INFO L129 PetriNetUnfolder]: 32/155 cut-off events. [2021-04-28 23:51:32,793 INFO L130 PetriNetUnfolder]: For 63/77 co-relation queries the response was YES. [2021-04-28 23:51:32,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 155 events. 32/155 cut-off events. For 63/77 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 892 event pairs, 6 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 307. Up to 48 conditions per place. [2021-04-28 23:51:32,798 INFO L146 LiptonReduction]: Number of co-enabled transitions 1114 [2021-04-28 23:51:32,810 INFO L158 LiptonReduction]: Checked pairs total: 201 [2021-04-28 23:51:32,810 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:32,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-28 23:51:32,812 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:32,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 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 23:51:32,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:32,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:32,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:51:32,813 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:32,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1973335550, now seen corresponding path program 1 times [2021-04-28 23:51:32,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:32,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777827815] [2021-04-28 23:51:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:32,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:32,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:32,896 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:32,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:32,911 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 23:51:32,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777827815] [2021-04-28 23:51:32,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:32,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:32,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41515712] [2021-04-28 23:51:32,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:32,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:32,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:32,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:32,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:32,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 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 23:51:32,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:32,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:32,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:32,971 INFO L129 PetriNetUnfolder]: 26/148 cut-off events. [2021-04-28 23:51:32,972 INFO L130 PetriNetUnfolder]: For 82/140 co-relation queries the response was YES. [2021-04-28 23:51:32,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 148 events. 26/148 cut-off events. For 82/140 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 832 event pairs, 4 based on Foata normal form. 7/101 useless extension candidates. Maximal degree in co-relation 341. Up to 39 conditions per place. [2021-04-28 23:51:32,974 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 12 selfloop transitions, 11 changer transitions 0/55 dead transitions. [2021-04-28 23:51:32,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 55 transitions, 264 flow [2021-04-28 23:51:32,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2021-04-28 23:51:32,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.690251572327044 [2021-04-28 23:51:32,977 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 439 transitions. [2021-04-28 23:51:32,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 439 transitions. [2021-04-28 23:51:32,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:32,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 439 transitions. [2021-04-28 23:51:32,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:32,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:32,983 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:32,983 INFO L185 Difference]: Start difference. First operand has 54 places, 48 transitions, 172 flow. Second operand 4 states and 439 transitions. [2021-04-28 23:51:32,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 55 transitions, 264 flow [2021-04-28 23:51:32,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 259 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:32,988 INFO L241 Difference]: Finished difference. Result has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:32,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2021-04-28 23:51:32,988 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -16 predicate places. [2021-04-28 23:51:32,988 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:32,989 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:32,989 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:32,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:33,006 INFO L129 PetriNetUnfolder]: 26/138 cut-off events. [2021-04-28 23:51:33,007 INFO L130 PetriNetUnfolder]: For 169/198 co-relation queries the response was YES. [2021-04-28 23:51:33,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 138 events. 26/138 cut-off events. For 169/198 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 783 event pairs, 1 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 344. Up to 39 conditions per place. [2021-04-28 23:51:33,011 INFO L146 LiptonReduction]: Number of co-enabled transitions 1236 [2021-04-28 23:51:33,024 INFO L158 LiptonReduction]: Checked pairs total: 217 [2021-04-28 23:51:33,024 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:33,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-04-28 23:51:33,026 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:33,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 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 23:51:33,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:33,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:33,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:51:33,028 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:33,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:33,028 INFO L82 PathProgramCache]: Analyzing trace with hash -262650828, now seen corresponding path program 1 times [2021-04-28 23:51:33,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:33,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350433159] [2021-04-28 23:51:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:33,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:33,074 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:33,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:33,122 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 23:51:33,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350433159] [2021-04-28 23:51:33,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:33,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:33,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78380121] [2021-04-28 23:51:33,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:33,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:33,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:33,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:33,126 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:33,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 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 23:51:33,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:33,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:33,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:33,188 INFO L129 PetriNetUnfolder]: 22/138 cut-off events. [2021-04-28 23:51:33,188 INFO L130 PetriNetUnfolder]: For 161/310 co-relation queries the response was YES. [2021-04-28 23:51:33,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 138 events. 22/138 cut-off events. For 161/310 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 761 event pairs, 0 based on Foata normal form. 8/96 useless extension candidates. Maximal degree in co-relation 368. Up to 36 conditions per place. [2021-04-28 23:51:33,191 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 12 selfloop transitions, 15 changer transitions 0/59 dead transitions. [2021-04-28 23:51:33,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 59 transitions, 373 flow [2021-04-28 23:51:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2021-04-28 23:51:33,195 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.690251572327044 [2021-04-28 23:51:33,195 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 439 transitions. [2021-04-28 23:51:33,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 439 transitions. [2021-04-28 23:51:33,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:33,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 439 transitions. [2021-04-28 23:51:33,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:33,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:33,202 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:33,202 INFO L185 Difference]: Start difference. First operand has 59 places, 52 transitions, 252 flow. Second operand 4 states and 439 transitions. [2021-04-28 23:51:33,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 59 transitions, 373 flow [2021-04-28 23:51:33,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 59 transitions, 367 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:33,216 INFO L241 Difference]: Finished difference. Result has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:33,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=371, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2021-04-28 23:51:33,216 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -11 predicate places. [2021-04-28 23:51:33,217 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:33,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:33,218 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:33,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:33,239 INFO L129 PetriNetUnfolder]: 22/136 cut-off events. [2021-04-28 23:51:33,240 INFO L130 PetriNetUnfolder]: For 214/263 co-relation queries the response was YES. [2021-04-28 23:51:33,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 136 events. 22/136 cut-off events. For 214/263 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 766 event pairs, 2 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 375. Up to 36 conditions per place. [2021-04-28 23:51:33,246 INFO L146 LiptonReduction]: Number of co-enabled transitions 1390 [2021-04-28 23:51:33,263 INFO L158 LiptonReduction]: Checked pairs total: 228 [2021-04-28 23:51:33,263 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:33,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-28 23:51:33,269 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:33,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 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 23:51:33,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:33,270 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:33,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:51:33,270 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:33,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:33,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1996260963, now seen corresponding path program 1 times [2021-04-28 23:51:33,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:33,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129879483] [2021-04-28 23:51:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:33,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:51:33,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:33,350 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:33,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:33,360 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 23:51:33,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129879483] [2021-04-28 23:51:33,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:33,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:33,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818881085] [2021-04-28 23:51:33,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:33,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:33,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:33,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:33,365 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:33,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 371 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 23:51:33,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:33,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:33,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:33,414 INFO L129 PetriNetUnfolder]: 19/129 cut-off events. [2021-04-28 23:51:33,415 INFO L130 PetriNetUnfolder]: For 292/542 co-relation queries the response was YES. [2021-04-28 23:51:33,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 129 events. 19/129 cut-off events. For 292/542 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 702 event pairs, 0 based on Foata normal form. 16/97 useless extension candidates. Maximal degree in co-relation 390. Up to 31 conditions per place. [2021-04-28 23:51:33,418 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 12 selfloop transitions, 18 changer transitions 0/62 dead transitions. [2021-04-28 23:51:33,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 490 flow [2021-04-28 23:51:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2021-04-28 23:51:33,421 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6886792452830188 [2021-04-28 23:51:33,421 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 438 transitions. [2021-04-28 23:51:33,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 438 transitions. [2021-04-28 23:51:33,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:33,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 438 transitions. [2021-04-28 23:51:33,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 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 23:51:33,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:33,428 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 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 23:51:33,429 INFO L185 Difference]: Start difference. First operand has 64 places, 57 transitions, 371 flow. Second operand 4 states and 438 transitions. [2021-04-28 23:51:33,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 490 flow [2021-04-28 23:51:33,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:33,435 INFO L241 Difference]: Finished difference. Result has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:33,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=491, PETRI_PLACES=69, PETRI_TRANSITIONS=60} [2021-04-28 23:51:33,436 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2021-04-28 23:51:33,436 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:33,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:33,436 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:33,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:33,459 INFO L129 PetriNetUnfolder]: 19/121 cut-off events. [2021-04-28 23:51:33,459 INFO L130 PetriNetUnfolder]: For 319/372 co-relation queries the response was YES. [2021-04-28 23:51:33,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 121 events. 19/121 cut-off events. For 319/372 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 674 event pairs, 0 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 394. Up to 31 conditions per place. [2021-04-28 23:51:33,464 INFO L146 LiptonReduction]: Number of co-enabled transitions 1486 [2021-04-28 23:51:33,477 INFO L158 LiptonReduction]: Checked pairs total: 237 [2021-04-28 23:51:33,477 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:33,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-04-28 23:51:33,479 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:33,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 23:51:33,480 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:33,480 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:33,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:51:33,480 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1753475943, now seen corresponding path program 1 times [2021-04-28 23:51:33,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:33,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420774031] [2021-04-28 23:51:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:33,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:33,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:33,545 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:33,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:33,555 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 23:51:33,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420774031] [2021-04-28 23:51:33,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:33,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:33,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590206361] [2021-04-28 23:51:33,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:33,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:33,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:33,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:33,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:33,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 60 transitions, 491 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 23:51:33,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:33,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:33,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:33,640 INFO L129 PetriNetUnfolder]: 38/188 cut-off events. [2021-04-28 23:51:33,640 INFO L130 PetriNetUnfolder]: For 974/1217 co-relation queries the response was YES. [2021-04-28 23:51:33,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 188 events. 38/188 cut-off events. For 974/1217 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1087 event pairs, 0 based on Foata normal form. 5/126 useless extension candidates. Maximal degree in co-relation 717. Up to 44 conditions per place. [2021-04-28 23:51:33,643 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 15 selfloop transitions, 9 changer transitions 29/80 dead transitions. [2021-04-28 23:51:33,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 882 flow [2021-04-28 23:51:33,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 540 transitions. [2021-04-28 23:51:33,646 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2021-04-28 23:51:33,647 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 540 transitions. [2021-04-28 23:51:33,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 540 transitions. [2021-04-28 23:51:33,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:33,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 540 transitions. [2021-04-28 23:51:33,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 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 23:51:33,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 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 23:51:33,656 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 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 23:51:33,656 INFO L185 Difference]: Start difference. First operand has 69 places, 60 transitions, 491 flow. Second operand 5 states and 540 transitions. [2021-04-28 23:51:33,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 882 flow [2021-04-28 23:51:33,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 80 transitions, 857 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:33,665 INFO L241 Difference]: Finished difference. Result has 74 places, 46 transitions, 335 flow [2021-04-28 23:51:33,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2021-04-28 23:51:33,666 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-04-28 23:51:33,666 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:33,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 46 transitions, 335 flow [2021-04-28 23:51:33,667 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 46 transitions, 335 flow [2021-04-28 23:51:33,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 46 transitions, 335 flow [2021-04-28 23:51:33,685 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-28 23:51:33,686 INFO L130 PetriNetUnfolder]: For 214/217 co-relation queries the response was YES. [2021-04-28 23:51:33,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 76 events. 7/76 cut-off events. For 214/217 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 319 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 240. Up to 16 conditions per place. [2021-04-28 23:51:33,689 INFO L146 LiptonReduction]: Number of co-enabled transitions 892 [2021-04-28 23:51:33,697 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:51:33,697 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:33,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-28 23:51:33,703 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 335 flow [2021-04-28 23:51:33,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 23:51:33,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:33,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:33,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:51:33,705 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1074566651, now seen corresponding path program 1 times [2021-04-28 23:51:33,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:33,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166500902] [2021-04-28 23:51:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:33,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:33,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:33,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:51:33,788 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 23:51:33,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166500902] [2021-04-28 23:51:33,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:33,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:33,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260277040] [2021-04-28 23:51:33,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:33,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:33,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:33,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:33,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:33,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 23:51:33,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:33,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:33,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:34,681 INFO L129 PetriNetUnfolder]: 4090/6455 cut-off events. [2021-04-28 23:51:34,681 INFO L130 PetriNetUnfolder]: For 5251/5806 co-relation queries the response was YES. [2021-04-28 23:51:34,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13728 conditions, 6455 events. 4090/6455 cut-off events. For 5251/5806 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 50775 event pairs, 1845 based on Foata normal form. 84/1729 useless extension candidates. Maximal degree in co-relation 13698. Up to 4234 conditions per place. [2021-04-28 23:51:34,718 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 20 selfloop transitions, 21 changer transitions 15/81 dead transitions. [2021-04-28 23:51:34,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 517 flow [2021-04-28 23:51:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 576 transitions. [2021-04-28 23:51:34,723 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7245283018867924 [2021-04-28 23:51:34,724 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 576 transitions. [2021-04-28 23:51:34,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 576 transitions. [2021-04-28 23:51:34,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:34,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 576 transitions. [2021-04-28 23:51:34,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 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 23:51:34,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 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 23:51:34,731 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 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 23:51:34,731 INFO L185 Difference]: Start difference. First operand has 70 places, 46 transitions, 335 flow. Second operand 5 states and 576 transitions. [2021-04-28 23:51:34,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 517 flow [2021-04-28 23:51:34,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 470 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-04-28 23:51:34,741 INFO L241 Difference]: Finished difference. Result has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:34,741 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=449, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2021-04-28 23:51:34,741 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2021-04-28 23:51:34,742 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:34,742 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:34,743 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:34,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:35,202 INFO L129 PetriNetUnfolder]: 1859/4055 cut-off events. [2021-04-28 23:51:35,202 INFO L130 PetriNetUnfolder]: For 2325/5716 co-relation queries the response was YES. [2021-04-28 23:51:35,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11652 conditions, 4055 events. 1859/4055 cut-off events. For 2325/5716 co-relation queries the response was YES. Maximal size of possible extension queue 1293. Compared 43740 event pairs, 1607 based on Foata normal form. 3/1052 useless extension candidates. Maximal degree in co-relation 11626. Up to 3781 conditions per place. [2021-04-28 23:51:35,278 INFO L146 LiptonReduction]: Number of co-enabled transitions 1150 [2021-04-28 23:51:35,296 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:35,296 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:35,296 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 554 [2021-04-28 23:51:35,297 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:35,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 23:51:35,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:35,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:35,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:51:35,298 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:35,299 INFO L82 PathProgramCache]: Analyzing trace with hash -335182575, now seen corresponding path program 1 times [2021-04-28 23:51:35,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:35,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436846901] [2021-04-28 23:51:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:35,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:35,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:35,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:51:35,354 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 23:51:35,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436846901] [2021-04-28 23:51:35,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:35,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:35,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334873776] [2021-04-28 23:51:35,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:35,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:35,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:35,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:35,358 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:35,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:35,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:35,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:35,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:36,488 INFO L129 PetriNetUnfolder]: 3322/6074 cut-off events. [2021-04-28 23:51:36,488 INFO L130 PetriNetUnfolder]: For 5204/18364 co-relation queries the response was YES. [2021-04-28 23:51:36,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22076 conditions, 6074 events. 3322/6074 cut-off events. For 5204/18364 co-relation queries the response was YES. Maximal size of possible extension queue 1944. Compared 55630 event pairs, 459 based on Foata normal form. 111/1962 useless extension candidates. Maximal degree in co-relation 22048. Up to 4469 conditions per place. [2021-04-28 23:51:36,530 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 13 selfloop transitions, 36 changer transitions 27/101 dead transitions. [2021-04-28 23:51:36,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 101 transitions, 778 flow [2021-04-28 23:51:36,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:51:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:51:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 802 transitions. [2021-04-28 23:51:36,534 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7205750224618149 [2021-04-28 23:51:36,534 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 802 transitions. [2021-04-28 23:51:36,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 802 transitions. [2021-04-28 23:51:36,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:36,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 802 transitions. [2021-04-28 23:51:36,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.57142857142857) internal successors, (802), 7 states have internal predecessors, (802), 0 states have call successors, (0), 0 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 23:51:36,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 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 23:51:36,542 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 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 23:51:36,543 INFO L185 Difference]: Start difference. First operand has 69 places, 65 transitions, 449 flow. Second operand 7 states and 802 transitions. [2021-04-28 23:51:36,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 101 transitions, 778 flow [2021-04-28 23:51:36,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 101 transitions, 778 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:51:36,566 INFO L241 Difference]: Finished difference. Result has 78 places, 73 transitions, 642 flow [2021-04-28 23:51:36,566 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=642, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2021-04-28 23:51:36,566 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2021-04-28 23:51:36,566 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:36,567 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 73 transitions, 642 flow [2021-04-28 23:51:36,567 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 73 transitions, 642 flow [2021-04-28 23:51:36,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 642 flow [2021-04-28 23:51:36,715 INFO L129 PetriNetUnfolder]: 430/1043 cut-off events. [2021-04-28 23:51:36,715 INFO L130 PetriNetUnfolder]: For 3201/4843 co-relation queries the response was YES. [2021-04-28 23:51:36,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4834 conditions, 1043 events. 430/1043 cut-off events. For 3201/4843 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 8035 event pairs, 81 based on Foata normal form. 6/455 useless extension candidates. Maximal degree in co-relation 4803. Up to 844 conditions per place. [2021-04-28 23:51:36,738 INFO L146 LiptonReduction]: Number of co-enabled transitions 1052 [2021-04-28 23:51:36,755 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:36,756 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:36,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 190 [2021-04-28 23:51:36,757 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 73 transitions, 642 flow [2021-04-28 23:51:36,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:36,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:36,758 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:36,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:51:36,758 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:36,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:36,759 INFO L82 PathProgramCache]: Analyzing trace with hash 826498081, now seen corresponding path program 1 times [2021-04-28 23:51:36,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:36,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250665169] [2021-04-28 23:51:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:36,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:36,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:36,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:36,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:36,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:36,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:51:36,811 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 23:51:36,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250665169] [2021-04-28 23:51:36,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:36,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:51:36,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847118020] [2021-04-28 23:51:36,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:51:36,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:36,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:51:36,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:51:36,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:36,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 642 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 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 23:51:36,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:36,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:36,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:37,220 INFO L129 PetriNetUnfolder]: 577/1259 cut-off events. [2021-04-28 23:51:37,221 INFO L130 PetriNetUnfolder]: For 4436/20368 co-relation queries the response was YES. [2021-04-28 23:51:37,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6413 conditions, 1259 events. 577/1259 cut-off events. For 4436/20368 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 9510 event pairs, 0 based on Foata normal form. 120/668 useless extension candidates. Maximal degree in co-relation 6380. Up to 958 conditions per place. [2021-04-28 23:51:37,233 INFO L132 encePairwiseOnDemand]: 143/159 looper letters, 4 selfloop transitions, 45 changer transitions 15/86 dead transitions. [2021-04-28 23:51:37,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 860 flow [2021-04-28 23:51:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:51:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:51:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 995 transitions. [2021-04-28 23:51:37,238 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6953179594689028 [2021-04-28 23:51:37,238 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 995 transitions. [2021-04-28 23:51:37,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 995 transitions. [2021-04-28 23:51:37,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:37,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 995 transitions. [2021-04-28 23:51:37,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.55555555555556) internal successors, (995), 9 states have internal predecessors, (995), 0 states have call successors, (0), 0 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 23:51:37,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 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 23:51:37,248 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 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 23:51:37,248 INFO L185 Difference]: Start difference. First operand has 75 places, 73 transitions, 642 flow. Second operand 9 states and 995 transitions. [2021-04-28 23:51:37,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 860 flow [2021-04-28 23:51:37,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 86 transitions, 773 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-04-28 23:51:37,306 INFO L241 Difference]: Finished difference. Result has 81 places, 70 transitions, 631 flow [2021-04-28 23:51:37,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=631, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2021-04-28 23:51:37,307 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 6 predicate places. [2021-04-28 23:51:37,307 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:37,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 70 transitions, 631 flow [2021-04-28 23:51:37,307 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 70 transitions, 631 flow [2021-04-28 23:51:37,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 631 flow [2021-04-28 23:51:37,370 INFO L129 PetriNetUnfolder]: 120/490 cut-off events. [2021-04-28 23:51:37,370 INFO L130 PetriNetUnfolder]: For 1357/1599 co-relation queries the response was YES. [2021-04-28 23:51:37,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2323 conditions, 490 events. 120/490 cut-off events. For 1357/1599 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4069 event pairs, 0 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 2291. Up to 364 conditions per place. [2021-04-28 23:51:37,382 INFO L146 LiptonReduction]: Number of co-enabled transitions 898 [2021-04-28 23:51:37,396 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:37,397 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:37,397 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-04-28 23:51:37,398 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 631 flow [2021-04-28 23:51:37,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 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 23:51:37,399 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:37,399 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 23:51:37,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:51:37,399 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:37,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1757949543, now seen corresponding path program 1 times [2021-04-28 23:51:37,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:37,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321416219] [2021-04-28 23:51:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:37,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:37,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:37,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:37,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:37,445 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:37,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:37,455 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 23:51:37,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321416219] [2021-04-28 23:51:37,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:37,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:37,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149321445] [2021-04-28 23:51:37,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:37,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:37,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:37,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:37,458 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:37,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 631 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 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 23:51:37,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:37,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:37,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:37,583 INFO L129 PetriNetUnfolder]: 200/704 cut-off events. [2021-04-28 23:51:37,583 INFO L130 PetriNetUnfolder]: For 2904/3243 co-relation queries the response was YES. [2021-04-28 23:51:37,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 704 events. 200/704 cut-off events. For 2904/3243 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 6073 event pairs, 1 based on Foata normal form. 35/306 useless extension candidates. Maximal degree in co-relation 3380. Up to 568 conditions per place. [2021-04-28 23:51:37,591 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 2 selfloop transitions, 5 changer transitions 31/75 dead transitions. [2021-04-28 23:51:37,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 75 transitions, 729 flow [2021-04-28 23:51:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-04-28 23:51:37,595 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6855345911949685 [2021-04-28 23:51:37,595 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-04-28 23:51:37,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-04-28 23:51:37,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:37,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-04-28 23:51:37,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 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 23:51:37,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 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 23:51:37,601 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 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 23:51:37,601 INFO L185 Difference]: Start difference. First operand has 79 places, 70 transitions, 631 flow. Second operand 5 states and 545 transitions. [2021-04-28 23:51:37,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 75 transitions, 729 flow [2021-04-28 23:51:37,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 549 flow, removed 38 selfloop flow, removed 10 redundant places. [2021-04-28 23:51:37,646 INFO L241 Difference]: Finished difference. Result has 74 places, 44 transitions, 270 flow [2021-04-28 23:51:37,646 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=270, PETRI_PLACES=74, PETRI_TRANSITIONS=44} [2021-04-28 23:51:37,646 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-04-28 23:51:37,646 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:37,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 44 transitions, 270 flow [2021-04-28 23:51:37,647 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 44 transitions, 270 flow [2021-04-28 23:51:37,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 44 transitions, 270 flow [2021-04-28 23:51:37,670 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-04-28 23:51:37,670 INFO L130 PetriNetUnfolder]: For 690/690 co-relation queries the response was YES. [2021-04-28 23:51:37,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 213 events. 81/213 cut-off events. For 690/690 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1152 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 718. Up to 109 conditions per place. [2021-04-28 23:51:37,674 INFO L146 LiptonReduction]: Number of co-enabled transitions 238 [2021-04-28 23:51:37,757 INFO L158 LiptonReduction]: Checked pairs total: 18 [2021-04-28 23:51:37,757 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:51:37,758 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-04-28 23:51:37,759 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 276 flow [2021-04-28 23:51:37,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 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 23:51:37,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:37,760 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 23:51:37,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:51:37,760 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:37,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:37,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1007317696, now seen corresponding path program 1 times [2021-04-28 23:51:37,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:37,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430302870] [2021-04-28 23:51:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:37,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:37,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:51:37,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:37,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:37,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:37,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:37,804 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:37,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:37,813 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 23:51:37,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430302870] [2021-04-28 23:51:37,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:37,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:51:37,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086052788] [2021-04-28 23:51:37,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:37,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:37,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:37,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:37,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2021-04-28 23:51:37,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 45 transitions, 276 flow. Second operand has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 23:51:37,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:37,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2021-04-28 23:51:37,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:37,855 INFO L129 PetriNetUnfolder]: 90/223 cut-off events. [2021-04-28 23:51:37,856 INFO L130 PetriNetUnfolder]: For 949/950 co-relation queries the response was YES. [2021-04-28 23:51:37,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 223 events. 90/223 cut-off events. For 949/950 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1077 event pairs, 0 based on Foata normal form. 28/132 useless extension candidates. Maximal degree in co-relation 692. Up to 109 conditions per place. [2021-04-28 23:51:37,857 INFO L132 encePairwiseOnDemand]: 157/162 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2021-04-28 23:51:37,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 44 transitions, 272 flow [2021-04-28 23:51:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:51:37,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:51:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2021-04-28 23:51:37,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6800411522633745 [2021-04-28 23:51:37,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2021-04-28 23:51:37,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2021-04-28 23:51:37,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:37,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2021-04-28 23:51:37,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 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 23:51:37,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:37,867 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:37,868 INFO L185 Difference]: Start difference. First operand has 64 places, 45 transitions, 276 flow. Second operand 6 states and 661 transitions. [2021-04-28 23:51:37,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 44 transitions, 272 flow [2021-04-28 23:51:37,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 210 flow, removed 2 selfloop flow, removed 21 redundant places. [2021-04-28 23:51:37,871 INFO L241 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-04-28 23:51:37,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-04-28 23:51:37,871 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -28 predicate places. [2021-04-28 23:51:37,871 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:37,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:51:37,872 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:51:37,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:51:37,872 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:51:37,873 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:37,873 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 23:51:37,873 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:51:37,873 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:37,873 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:37,873 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:51:37,874 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:51:37,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 23:51:37,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:51:37,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:51:37 BasicIcfg [2021-04-28 23:51:37,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:51:37,881 INFO L168 Benchmark]: Toolchain (without parser) took 15280.96 ms. Allocated memory was 304.1 MB in the beginning and 522.2 MB in the end (delta: 218.1 MB). Free memory was 278.1 MB in the beginning and 283.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 214.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:37,882 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 304.1 MB. Free memory is still 275.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:51:37,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.63 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 275.1 MB in the end (delta: -99.0 kB). Peak memory consumption was 23.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:37,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.45 ms. Allocated memory is still 304.1 MB. Free memory was 275.1 MB in the beginning and 273.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:37,883 INFO L168 Benchmark]: Boogie Preprocessor took 57.30 ms. Allocated memory is still 304.1 MB. Free memory was 273.3 MB in the beginning and 272.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:51:37,883 INFO L168 Benchmark]: RCFGBuilder took 644.75 ms. Allocated memory is still 304.1 MB. Free memory was 272.3 MB in the beginning and 249.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:37,884 INFO L168 Benchmark]: TraceAbstraction took 13777.35 ms. Allocated memory was 304.1 MB in the beginning and 522.2 MB in the end (delta: 218.1 MB). Free memory was 248.2 MB in the beginning and 283.3 MB in the end (delta: -35.1 MB). Peak memory consumption was 184.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:37,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 304.1 MB. Free memory is still 275.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 661.63 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 275.1 MB in the end (delta: -99.0 kB). Peak memory consumption was 23.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.45 ms. Allocated memory is still 304.1 MB. Free memory was 275.1 MB in the beginning and 273.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.30 ms. Allocated memory is still 304.1 MB. Free memory was 273.3 MB in the beginning and 272.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 644.75 ms. Allocated memory is still 304.1 MB. Free memory was 272.3 MB in the beginning and 249.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 13777.35 ms. Allocated memory was 304.1 MB in the beginning and 522.2 MB in the end (delta: 218.1 MB). Free memory was 248.2 MB in the beginning and 283.3 MB in the end (delta: -35.1 MB). Peak memory consumption was 184.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7436.2ms, 69 PlacesBefore, 75 PlacesAfterwards, 60 TransitionsBefore, 65 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 5648 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1822, positive: 1656, positive conditional: 1656, positive unconditional: 0, negative: 166, negative conditional: 166, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 923, positive: 868, positive conditional: 0, positive unconditional: 868, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 923, positive: 868, positive conditional: 0, positive unconditional: 868, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 923, positive: 856, positive conditional: 0, positive unconditional: 856, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 67, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 250, negative conditional: 0, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1822, positive: 788, positive conditional: 788, positive unconditional: 0, negative: 111, negative conditional: 111, negative unconditional: 0, unknown: 923, unknown conditional: 923, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 902, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.8ms, 76 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 908, Positive cache size: 852, Positive conditional cache size: 852, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.2ms, 54 PlacesBefore, 54 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 915, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 57, Negative conditional cache size: 57, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.4ms, 59 PlacesBefore, 59 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 217 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 916, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 58, Negative conditional cache size: 58, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.8ms, 64 PlacesBefore, 64 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1390 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 927, Positive cache size: 868, Positive conditional cache size: 868, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.7ms, 69 PlacesBefore, 69 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 15, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 928, Positive cache size: 869, Positive conditional cache size: 869, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.9ms, 74 PlacesBefore, 70 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 553.3ms, 69 PlacesBefore, 69 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 1150 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): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 188.9ms, 78 PlacesBefore, 75 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1052 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): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.3ms, 81 PlacesBefore, 79 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 898 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): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.7ms, 74 PlacesBefore, 64 PlacesAfterwards, 44 TransitionsBefore, 45 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, 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: 15, positive: 15, positive conditional: 15, 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: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 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): 944, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13629.6ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3634.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7558.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 86 SDtfs, 87 SDslu, 42 SDs, 0 SdLazy, 368 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 358.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=642occurred in iteration=8, InterpolantAutomatonStates: 56, 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: 35.6ms SsaConstructionTime, 199.0ms SatisfiabilityAnalysisTime, 750.2ms InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 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...