/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 15:00:45,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 15:00:45,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 15:00:45,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 15:00:45,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 15:00:45,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 15:00:45,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 15:00:45,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 15:00:45,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 15:00:45,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 15:00:45,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 15:00:45,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 15:00:45,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 15:00:45,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 15:00:45,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 15:00:45,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 15:00:45,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 15:00:45,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 15:00:45,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 15:00:45,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 15:00:45,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 15:00:45,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 15:00:45,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 15:00:45,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 15:00:45,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 15:00:45,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 15:00:45,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 15:00:45,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 15:00:45,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 15:00:45,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 15:00:45,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 15:00:45,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 15:00:45,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 15:00:45,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 15:00:45,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 15:00:45,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 15:00:45,953 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-RepeatedSemanticLbe.epf [2021-03-25 15:00:45,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 15:00:45,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 15:00:45,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 15:00:45,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 15:00:45,984 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 15:00:45,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 15:00:45,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 15:00:45,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 15:00:45,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 15:00:45,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 15:00:45,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 15:00:45,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 15:00:45,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 15:00:45,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 15:00:45,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 15:00:45,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:00:45,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 15:00:45,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 15:00:45,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 15:00:45,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 15:00:45,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 15:00:45,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 15:00:45,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 15:00:45,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 15:00:46,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 15:00:46,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 15:00:46,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 15:00:46,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 15:00:46,324 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 15:00:46,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-03-25 15:00:46,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea05f8092/aaef71590f7b4e829d83c7d2c3d8e9bf/FLAG989845915 [2021-03-25 15:00:46,945 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 15:00:46,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-03-25 15:00:46,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea05f8092/aaef71590f7b4e829d83c7d2c3d8e9bf/FLAG989845915 [2021-03-25 15:00:47,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea05f8092/aaef71590f7b4e829d83c7d2c3d8e9bf [2021-03-25 15:00:47,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 15:00:47,223 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 15:00:47,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 15:00:47,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 15:00:47,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 15:00:47,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ecb09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47, skipping insertion in model container [2021-03-25 15:00:47,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 15:00:47,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 15:00:47,427 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/safe027_tso.opt.i[949,962] [2021-03-25 15:00:47,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:00:47,538 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 15:00:47,547 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/safe027_tso.opt.i[949,962] [2021-03-25 15:00:47,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:00:47,647 INFO L208 MainTranslator]: Completed translation [2021-03-25 15:00:47,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47 WrapperNode [2021-03-25 15:00:47,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 15:00:47,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 15:00:47,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 15:00:47,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 15:00:47,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 15:00:47,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 15:00:47,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 15:00:47,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 15:00:47,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (1/1) ... [2021-03-25 15:00:47,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 15:00:47,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 15:00:47,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 15:00:47,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 15:00:47,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (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 [2021-03-25 15:00:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 15:00:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 15:00:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 15:00:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 15:00:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 15:00:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 15:00:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 15:00:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 15:00:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 15:00:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 15:00:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 15:00:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 15:00:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 15:00:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 15:00:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 15:00:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 15:00:47,813 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 15:00:48,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 15:00:48,300 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 15:00:48,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:00:48 BoogieIcfgContainer [2021-03-25 15:00:48,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 15:00:48,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 15:00:48,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 15:00:48,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 15:00:48,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 03:00:47" (1/3) ... [2021-03-25 15:00:48,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665d14f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:00:48, skipping insertion in model container [2021-03-25 15:00:48,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:47" (2/3) ... [2021-03-25 15:00:48,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665d14f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:00:48, skipping insertion in model container [2021-03-25 15:00:48,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:00:48" (3/3) ... [2021-03-25 15:00:48,309 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2021-03-25 15:00:48,314 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 15:00:48,318 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 15:00:48,318 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 15:00:48,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,356 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,363 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,363 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,364 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,364 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,366 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,366 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,366 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,366 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,367 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,367 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,376 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,377 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:48,384 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 15:00:48,400 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 15:00:48,415 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 15:00:48,416 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 15:00:48,416 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 15:00:48,416 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 15:00:48,416 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 15:00:48,416 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 15:00:48,416 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 15:00:48,416 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 15:00:48,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-25 15:00:48,470 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-25 15:00:48,470 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:48,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-25 15:00:48,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-25 15:00:48,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-25 15:00:48,478 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:48,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-25 15:00:48,496 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-25 15:00:48,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-25 15:00:48,512 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-25 15:00:48,512 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:48,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-25 15:00:48,515 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-25 15:00:49,994 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-25 15:00:49,994 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 15:00:49,996 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1519 [2021-03-25 15:00:50,006 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 15:00:50,007 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:50,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:50,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:50,008 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-25 15:00:50,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:50,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424118847] [2021-03-25 15:00:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:50,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:50,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:50,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:50,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:50,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424118847] [2021-03-25 15:00:50,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:50,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:00:50,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271370139] [2021-03-25 15:00:50,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:00:50,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:50,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:00:50,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:00:50,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-03-25 15:00:50,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:50,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:50,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-03-25 15:00:50,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:50,307 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 15:00:50,307 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:50,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 15:00:50,309 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-25 15:00:50,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-25 15:00:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:00:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:00:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-03-25 15:00:50,325 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2021-03-25 15:00:50,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-03-25 15:00:50,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-03-25 15:00:50,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:50,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-03-25 15:00:50,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:50,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 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) [2021-03-25 15:00:50,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 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) [2021-03-25 15:00:50,345 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 361 transitions. [2021-03-25 15:00:50,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-25 15:00:50,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 15:00:50,354 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-25 15:00:50,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-25 15:00:50,359 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-25 15:00:50,359 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:50,360 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-25 15:00:50,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-25 15:00:50,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-25 15:00:50,364 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 15:00:50,364 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 15:00:50,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 15:00:50,365 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-25 15:00:50,863 INFO L154 LiptonReduction]: Checked pairs total: 502 [2021-03-25 15:00:50,863 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 15:00:50,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 504 [2021-03-25 15:00:50,864 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-25 15:00:50,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:50,864 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:50,864 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:50,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 15:00:50,865 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:50,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:50,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1195981847, now seen corresponding path program 1 times [2021-03-25 15:00:50,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:50,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962977142] [2021-03-25 15:00:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:50,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:50,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:50,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:50,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:50,929 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:00:50,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:00:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:50,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962977142] [2021-03-25 15:00:50,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:50,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:50,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105687742] [2021-03-25 15:00:50,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:50,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:50,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:50,941 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-25 15:00:50,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:50,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:50,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-25 15:00:50,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:51,010 INFO L129 PetriNetUnfolder]: 38/105 cut-off events. [2021-03-25 15:00:51,011 INFO L130 PetriNetUnfolder]: For 22/48 co-relation queries the response was YES. [2021-03-25 15:00:51,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 105 events. 38/105 cut-off events. For 22/48 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 386 event pairs, 3 based on Foata normal form. 5/101 useless extension candidates. Maximal degree in co-relation 202. Up to 43 conditions per place. [2021-03-25 15:00:51,014 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 10 selfloop transitions, 12 changer transitions 0/35 dead transitions. [2021-03-25 15:00:51,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2021-03-25 15:00:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:00:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:00:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-03-25 15:00:51,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059259259259259 [2021-03-25 15:00:51,016 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-03-25 15:00:51,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-03-25 15:00:51,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:51,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-03-25 15:00:51,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,022 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,022 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 5 states and 544 transitions. [2021-03-25 15:00:51,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2021-03-25 15:00:51,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:00:51,024 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 136 flow [2021-03-25 15:00:51,024 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-25 15:00:51,025 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-25 15:00:51,025 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:51,025 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-25 15:00:51,026 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-25 15:00:51,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 136 flow [2021-03-25 15:00:51,042 INFO L129 PetriNetUnfolder]: 27/92 cut-off events. [2021-03-25 15:00:51,042 INFO L130 PetriNetUnfolder]: For 41/86 co-relation queries the response was YES. [2021-03-25 15:00:51,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 92 events. 27/92 cut-off events. For 41/86 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 340 event pairs, 12 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 229. Up to 46 conditions per place. [2021-03-25 15:00:51,045 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-25 15:00:51,190 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 15:00:51,421 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 15:00:51,511 INFO L154 LiptonReduction]: Checked pairs total: 210 [2021-03-25 15:00:51,512 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:00:51,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 487 [2021-03-25 15:00:51,513 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 132 flow [2021-03-25 15:00:51,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:51,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:51,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 15:00:51,514 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:51,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:51,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1825769221, now seen corresponding path program 1 times [2021-03-25 15:00:51,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:51,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574754857] [2021-03-25 15:00:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:51,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:51,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:51,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:51,582 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:00:51,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:00:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:51,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574754857] [2021-03-25 15:00:51,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:51,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:00:51,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065559706] [2021-03-25 15:00:51,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:00:51,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:51,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:00:51,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:00:51,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-25 15:00:51,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:51,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-25 15:00:51,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:51,667 INFO L129 PetriNetUnfolder]: 28/93 cut-off events. [2021-03-25 15:00:51,667 INFO L130 PetriNetUnfolder]: For 129/269 co-relation queries the response was YES. [2021-03-25 15:00:51,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 93 events. 28/93 cut-off events. For 129/269 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 331 event pairs, 3 based on Foata normal form. 7/94 useless extension candidates. Maximal degree in co-relation 292. Up to 44 conditions per place. [2021-03-25 15:00:51,668 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 8 selfloop transitions, 5 changer transitions 10/36 dead transitions. [2021-03-25 15:00:51,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 221 flow [2021-03-25 15:00:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:00:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:00:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-25 15:00:51,670 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-25 15:00:51,670 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-25 15:00:51,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-25 15:00:51,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:51,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-25 15:00:51,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,674 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 132 flow. Second operand 4 states and 432 transitions. [2021-03-25 15:00:51,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 221 flow [2021-03-25 15:00:51,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 213 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 15:00:51,676 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 118 flow [2021-03-25 15:00:51,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-25 15:00:51,677 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-25 15:00:51,677 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:51,677 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-25 15:00:51,677 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-25 15:00:51,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 118 flow [2021-03-25 15:00:51,683 INFO L129 PetriNetUnfolder]: 12/46 cut-off events. [2021-03-25 15:00:51,683 INFO L130 PetriNetUnfolder]: For 48/49 co-relation queries the response was YES. [2021-03-25 15:00:51,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 46 events. 12/46 cut-off events. For 48/49 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 103 event pairs, 7 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 134. Up to 26 conditions per place. [2021-03-25 15:00:51,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 15:00:51,689 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-25 15:00:51,689 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:51,689 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 15:00:51,690 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 118 flow [2021-03-25 15:00:51,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:51,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:51,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 15:00:51,691 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:51,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:51,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1641844335, now seen corresponding path program 1 times [2021-03-25 15:00:51,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:51,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134168668] [2021-03-25 15:00:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:51,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:51,738 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:00:51,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:00:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:51,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134168668] [2021-03-25 15:00:51,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:51,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:00:51,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174886206] [2021-03-25 15:00:51,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:51,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:51,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:51,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:51,753 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-03-25 15:00:51,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:51,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-03-25 15:00:51,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:51,773 INFO L129 PetriNetUnfolder]: 9/43 cut-off events. [2021-03-25 15:00:51,773 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-03-25 15:00:51,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 43 events. 9/43 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 6 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 136. Up to 21 conditions per place. [2021-03-25 15:00:51,774 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 6 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2021-03-25 15:00:51,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 25 transitions, 144 flow [2021-03-25 15:00:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:00:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:00:51,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2021-03-25 15:00:51,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2021-03-25 15:00:51,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2021-03-25 15:00:51,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2021-03-25 15:00:51,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:51,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2021-03-25 15:00:51,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,783 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 118 flow. Second operand 3 states and 342 transitions. [2021-03-25 15:00:51,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 25 transitions, 144 flow [2021-03-25 15:00:51,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 25 transitions, 120 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 15:00:51,785 INFO L241 Difference]: Finished difference. Result has 38 places, 24 transitions, 108 flow [2021-03-25 15:00:51,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2021-03-25 15:00:51,786 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-25 15:00:51,786 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:51,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 24 transitions, 108 flow [2021-03-25 15:00:51,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 24 transitions, 108 flow [2021-03-25 15:00:51,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 24 transitions, 108 flow [2021-03-25 15:00:51,792 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2021-03-25 15:00:51,792 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-25 15:00:51,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 44 events. 9/44 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 92 event pairs, 6 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 111. Up to 22 conditions per place. [2021-03-25 15:00:51,793 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 15:00:51,795 INFO L154 LiptonReduction]: Checked pairs total: 68 [2021-03-25 15:00:51,795 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:51,795 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 15:00:51,796 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 108 flow [2021-03-25 15:00:51,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,796 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:51,796 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:51,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 15:00:51,797 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:51,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:51,797 INFO L82 PathProgramCache]: Analyzing trace with hash -665521001, now seen corresponding path program 1 times [2021-03-25 15:00:51,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:51,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421855924] [2021-03-25 15:00:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:51,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:51,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:51,852 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:00:51,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:00:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:51,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421855924] [2021-03-25 15:00:51,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:51,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:51,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446553205] [2021-03-25 15:00:51,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:00:51,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:51,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:00:51,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:00:51,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-25 15:00:51,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 108 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) [2021-03-25 15:00:51,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:51,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-25 15:00:51,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:51,907 INFO L129 PetriNetUnfolder]: 23/82 cut-off events. [2021-03-25 15:00:51,908 INFO L130 PetriNetUnfolder]: For 69/76 co-relation queries the response was YES. [2021-03-25 15:00:51,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 82 events. 23/82 cut-off events. For 69/76 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 268 event pairs, 8 based on Foata normal form. 8/86 useless extension candidates. Maximal degree in co-relation 245. Up to 40 conditions per place. [2021-03-25 15:00:51,909 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 8 selfloop transitions, 5 changer transitions 7/34 dead transitions. [2021-03-25 15:00:51,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 211 flow [2021-03-25 15:00:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:00:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:00:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-25 15:00:51,910 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-25 15:00:51,911 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-25 15:00:51,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-25 15:00:51,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:51,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-25 15:00:51,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,915 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:51,915 INFO L185 Difference]: Start difference. First operand has 38 places, 24 transitions, 108 flow. Second operand 4 states and 432 transitions. [2021-03-25 15:00:51,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 211 flow [2021-03-25 15:00:51,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:00:51,920 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 120 flow [2021-03-25 15:00:51,920 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-25 15:00:51,920 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-25 15:00:51,923 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:51,923 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 120 flow [2021-03-25 15:00:51,923 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 120 flow [2021-03-25 15:00:51,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 120 flow [2021-03-25 15:00:51,930 INFO L129 PetriNetUnfolder]: 9/45 cut-off events. [2021-03-25 15:00:51,930 INFO L130 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2021-03-25 15:00:51,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 45 events. 9/45 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 6 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2021-03-25 15:00:51,931 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-25 15:00:51,933 INFO L154 LiptonReduction]: Checked pairs total: 61 [2021-03-25 15:00:51,933 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:51,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 15:00:51,934 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 120 flow [2021-03-25 15:00:51,935 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) [2021-03-25 15:00:51,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:51,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:51,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 15:00:51,935 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:51,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1308151309, now seen corresponding path program 1 times [2021-03-25 15:00:51,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:51,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329322216] [2021-03-25 15:00:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:51,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:51,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,001 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 15:00:52,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 15:00:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:52,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329322216] [2021-03-25 15:00:52,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:52,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:00:52,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552116486] [2021-03-25 15:00:52,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:52,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:52,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:52,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:52,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 15:00:52,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 120 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) [2021-03-25 15:00:52,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:52,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 15:00:52,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:52,073 INFO L129 PetriNetUnfolder]: 174/313 cut-off events. [2021-03-25 15:00:52,073 INFO L130 PetriNetUnfolder]: For 1395/1534 co-relation queries the response was YES. [2021-03-25 15:00:52,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 313 events. 174/313 cut-off events. For 1395/1534 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1426 event pairs, 94 based on Foata normal form. 32/306 useless extension candidates. Maximal degree in co-relation 860. Up to 211 conditions per place. [2021-03-25 15:00:52,076 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2021-03-25 15:00:52,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 186 flow [2021-03-25 15:00:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:00:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:00:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-03-25 15:00:52,079 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8117647058823529 [2021-03-25 15:00:52,079 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-03-25 15:00:52,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-03-25 15:00:52,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:52,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-03-25 15:00:52,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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) [2021-03-25 15:00:52,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,082 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,083 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 120 flow. Second operand 5 states and 552 transitions. [2021-03-25 15:00:52,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 186 flow [2021-03-25 15:00:52,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 15:00:52,085 INFO L241 Difference]: Finished difference. Result has 44 places, 33 transitions, 179 flow [2021-03-25 15:00:52,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2021-03-25 15:00:52,086 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-25 15:00:52,086 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:52,086 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 33 transitions, 179 flow [2021-03-25 15:00:52,087 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 179 flow [2021-03-25 15:00:52,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 179 flow [2021-03-25 15:00:52,123 INFO L129 PetriNetUnfolder]: 171/311 cut-off events. [2021-03-25 15:00:52,123 INFO L130 PetriNetUnfolder]: For 672/831 co-relation queries the response was YES. [2021-03-25 15:00:52,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 311 events. 171/311 cut-off events. For 672/831 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 1584 event pairs, 91 based on Foata normal form. 2/271 useless extension candidates. Maximal degree in co-relation 1022. Up to 229 conditions per place. [2021-03-25 15:00:52,127 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-25 15:00:52,148 INFO L154 LiptonReduction]: Checked pairs total: 33 [2021-03-25 15:00:52,148 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:00:52,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 15:00:52,150 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 173 flow [2021-03-25 15:00:52,150 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) [2021-03-25 15:00:52,151 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:52,151 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:52,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 15:00:52,151 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:52,152 INFO L82 PathProgramCache]: Analyzing trace with hash 498320838, now seen corresponding path program 1 times [2021-03-25 15:00:52,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:52,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490030900] [2021-03-25 15:00:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:52,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,229 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 15:00:52,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 15:00:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:52,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490030900] [2021-03-25 15:00:52,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:52,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:52,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850530622] [2021-03-25 15:00:52,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:00:52,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:52,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:00:52,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:00:52,237 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 15:00:52,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:52,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 15:00:52,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:52,310 INFO L129 PetriNetUnfolder]: 119/237 cut-off events. [2021-03-25 15:00:52,310 INFO L130 PetriNetUnfolder]: For 1014/1309 co-relation queries the response was YES. [2021-03-25 15:00:52,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 237 events. 119/237 cut-off events. For 1014/1309 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1013 event pairs, 30 based on Foata normal form. 59/277 useless extension candidates. Maximal degree in co-relation 955. Up to 184 conditions per place. [2021-03-25 15:00:52,313 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 14 changer transitions 0/41 dead transitions. [2021-03-25 15:00:52,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 273 flow [2021-03-25 15:00:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 15:00:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 15:00:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2021-03-25 15:00:52,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8112745098039216 [2021-03-25 15:00:52,315 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 662 transitions. [2021-03-25 15:00:52,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 662 transitions. [2021-03-25 15:00:52,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:52,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 662 transitions. [2021-03-25 15:00:52,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,318 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,318 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 173 flow. Second operand 6 states and 662 transitions. [2021-03-25 15:00:52,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 273 flow [2021-03-25 15:00:52,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 266 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 15:00:52,321 INFO L241 Difference]: Finished difference. Result has 48 places, 37 transitions, 262 flow [2021-03-25 15:00:52,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2021-03-25 15:00:52,321 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-25 15:00:52,322 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:52,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 37 transitions, 262 flow [2021-03-25 15:00:52,322 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 37 transitions, 262 flow [2021-03-25 15:00:52,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 262 flow [2021-03-25 15:00:52,339 INFO L129 PetriNetUnfolder]: 119/238 cut-off events. [2021-03-25 15:00:52,339 INFO L130 PetriNetUnfolder]: For 976/1350 co-relation queries the response was YES. [2021-03-25 15:00:52,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 238 events. 119/238 cut-off events. For 976/1350 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1077 event pairs, 30 based on Foata normal form. 5/224 useless extension candidates. Maximal degree in co-relation 1106. Up to 185 conditions per place. [2021-03-25 15:00:52,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-25 15:00:52,355 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-25 15:00:52,356 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:00:52,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 15:00:52,356 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 254 flow [2021-03-25 15:00:52,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:52,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:52,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 15:00:52,357 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:52,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1263554595, now seen corresponding path program 1 times [2021-03-25 15:00:52,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:52,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315576093] [2021-03-25 15:00:52,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:52,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,393 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 15:00:52,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 15:00:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:52,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315576093] [2021-03-25 15:00:52,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:52,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:00:52,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132417849] [2021-03-25 15:00:52,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:00:52,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:52,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:00:52,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:00:52,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 15:00:52,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:52,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 15:00:52,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:52,469 INFO L129 PetriNetUnfolder]: 62/146 cut-off events. [2021-03-25 15:00:52,469 INFO L130 PetriNetUnfolder]: For 934/1166 co-relation queries the response was YES. [2021-03-25 15:00:52,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 146 events. 62/146 cut-off events. For 934/1166 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 558 event pairs, 6 based on Foata normal form. 58/195 useless extension candidates. Maximal degree in co-relation 751. Up to 114 conditions per place. [2021-03-25 15:00:52,471 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 6 selfloop transitions, 18 changer transitions 4/45 dead transitions. [2021-03-25 15:00:52,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 396 flow [2021-03-25 15:00:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 15:00:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 15:00:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 772 transitions. [2021-03-25 15:00:52,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8109243697478992 [2021-03-25 15:00:52,473 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 772 transitions. [2021-03-25 15:00:52,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 772 transitions. [2021-03-25 15:00:52,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:52,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 772 transitions. [2021-03-25 15:00:52,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,477 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,477 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 254 flow. Second operand 7 states and 772 transitions. [2021-03-25 15:00:52,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 396 flow [2021-03-25 15:00:52,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 334 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-25 15:00:52,480 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 314 flow [2021-03-25 15:00:52,480 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-03-25 15:00:52,481 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-25 15:00:52,481 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:52,481 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 314 flow [2021-03-25 15:00:52,481 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 314 flow [2021-03-25 15:00:52,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 314 flow [2021-03-25 15:00:52,492 INFO L129 PetriNetUnfolder]: 59/143 cut-off events. [2021-03-25 15:00:52,492 INFO L130 PetriNetUnfolder]: For 478/517 co-relation queries the response was YES. [2021-03-25 15:00:52,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 143 events. 59/143 cut-off events. For 478/517 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 588 event pairs, 6 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 646. Up to 102 conditions per place. [2021-03-25 15:00:52,494 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 15:00:52,502 INFO L154 LiptonReduction]: Checked pairs total: 37 [2021-03-25 15:00:52,502 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:00:52,502 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 15:00:52,502 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 304 flow [2021-03-25 15:00:52,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:52,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:52,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 15:00:52,503 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:52,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:52,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1507604274, now seen corresponding path program 1 times [2021-03-25 15:00:52,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:52,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108536723] [2021-03-25 15:00:52,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:52,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:52,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:52,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108536723] [2021-03-25 15:00:52,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:52,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:52,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246874444] [2021-03-25 15:00:52,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:52,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:52,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:52,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:52,534 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-03-25 15:00:52,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:52,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-03-25 15:00:52,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:52,563 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-25 15:00:52,563 INFO L130 PetriNetUnfolder]: For 707/764 co-relation queries the response was YES. [2021-03-25 15:00:52,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 153 events. 65/153 cut-off events. For 707/764 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 607 event pairs, 5 based on Foata normal form. 7/149 useless extension candidates. Maximal degree in co-relation 667. Up to 106 conditions per place. [2021-03-25 15:00:52,564 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 6 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2021-03-25 15:00:52,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 38 transitions, 285 flow [2021-03-25 15:00:52,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:00:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:00:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 464 transitions. [2021-03-25 15:00:52,566 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2021-03-25 15:00:52,566 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 464 transitions. [2021-03-25 15:00:52,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 464 transitions. [2021-03-25 15:00:52,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:52,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 464 transitions. [2021-03-25 15:00:52,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,569 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,569 INFO L185 Difference]: Start difference. First operand has 51 places, 40 transitions, 304 flow. Second operand 4 states and 464 transitions. [2021-03-25 15:00:52,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 38 transitions, 285 flow [2021-03-25 15:00:52,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 244 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 15:00:52,572 INFO L241 Difference]: Finished difference. Result has 50 places, 37 transitions, 235 flow [2021-03-25 15:00:52,572 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2021-03-25 15:00:52,572 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-25 15:00:52,572 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:52,572 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 37 transitions, 235 flow [2021-03-25 15:00:52,573 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 37 transitions, 235 flow [2021-03-25 15:00:52,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 37 transitions, 235 flow [2021-03-25 15:00:52,583 INFO L129 PetriNetUnfolder]: 61/144 cut-off events. [2021-03-25 15:00:52,583 INFO L130 PetriNetUnfolder]: For 322/334 co-relation queries the response was YES. [2021-03-25 15:00:52,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 144 events. 61/144 cut-off events. For 322/334 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 566 event pairs, 6 based on Foata normal form. 1/133 useless extension candidates. Maximal degree in co-relation 515. Up to 68 conditions per place. [2021-03-25 15:00:52,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 15:00:52,587 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 15:00:52,588 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:52,588 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 15:00:52,588 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 235 flow [2021-03-25 15:00:52,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,589 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:52,589 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:52,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 15:00:52,589 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:52,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:52,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1440867416, now seen corresponding path program 2 times [2021-03-25 15:00:52,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:52,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325676166] [2021-03-25 15:00:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:52,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:52,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:52,629 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 15:00:52,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 15:00:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:52,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325676166] [2021-03-25 15:00:52,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:52,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 15:00:52,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690203663] [2021-03-25 15:00:52,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 15:00:52,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:52,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 15:00:52,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 15:00:52,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 15:00:52,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 235 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:52,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 15:00:52,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:52,716 INFO L129 PetriNetUnfolder]: 54/131 cut-off events. [2021-03-25 15:00:52,717 INFO L130 PetriNetUnfolder]: For 379/504 co-relation queries the response was YES. [2021-03-25 15:00:52,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 131 events. 54/131 cut-off events. For 379/504 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 493 event pairs, 2 based on Foata normal form. 42/161 useless extension candidates. Maximal degree in co-relation 543. Up to 63 conditions per place. [2021-03-25 15:00:52,718 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 2 selfloop transitions, 17 changer transitions 10/42 dead transitions. [2021-03-25 15:00:52,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 331 flow [2021-03-25 15:00:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 15:00:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 15:00:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 874 transitions. [2021-03-25 15:00:52,720 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8033088235294118 [2021-03-25 15:00:52,720 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 874 transitions. [2021-03-25 15:00:52,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 874 transitions. [2021-03-25 15:00:52,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:52,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 874 transitions. [2021-03-25 15:00:52,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.25) internal successors, (874), 8 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,724 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:52,724 INFO L185 Difference]: Start difference. First operand has 50 places, 37 transitions, 235 flow. Second operand 8 states and 874 transitions. [2021-03-25 15:00:52,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 331 flow [2021-03-25 15:00:52,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 313 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-25 15:00:52,727 INFO L241 Difference]: Finished difference. Result has 59 places, 32 transitions, 235 flow [2021-03-25 15:00:52,727 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=235, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2021-03-25 15:00:52,727 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2021-03-25 15:00:52,727 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:52,728 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 32 transitions, 235 flow [2021-03-25 15:00:52,728 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 32 transitions, 235 flow [2021-03-25 15:00:52,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 32 transitions, 235 flow [2021-03-25 15:00:52,733 INFO L129 PetriNetUnfolder]: 22/62 cut-off events. [2021-03-25 15:00:52,733 INFO L130 PetriNetUnfolder]: For 138/160 co-relation queries the response was YES. [2021-03-25 15:00:52,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 62 events. 22/62 cut-off events. For 138/160 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 162 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 234. Up to 24 conditions per place. [2021-03-25 15:00:52,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-25 15:00:53,113 INFO L154 LiptonReduction]: Checked pairs total: 49 [2021-03-25 15:00:53,113 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 15:00:53,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 386 [2021-03-25 15:00:53,114 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 250 flow [2021-03-25 15:00:53,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:53,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:53,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:53,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 15:00:53,114 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:53,115 INFO L82 PathProgramCache]: Analyzing trace with hash 502307281, now seen corresponding path program 1 times [2021-03-25 15:00:53,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:53,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685199145] [2021-03-25 15:00:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:53,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:53,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:53,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:53,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:53,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:53,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:53,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685199145] [2021-03-25 15:00:53,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:53,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:53,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743991782] [2021-03-25 15:00:53,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:53,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:53,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:53,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:53,146 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 144 [2021-03-25 15:00:53,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:53,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:53,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 144 [2021-03-25 15:00:53,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:53,171 INFO L129 PetriNetUnfolder]: 17/49 cut-off events. [2021-03-25 15:00:53,171 INFO L130 PetriNetUnfolder]: For 280/308 co-relation queries the response was YES. [2021-03-25 15:00:53,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 49 events. 17/49 cut-off events. For 280/308 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 106 event pairs, 0 based on Foata normal form. 8/54 useless extension candidates. Maximal degree in co-relation 224. Up to 17 conditions per place. [2021-03-25 15:00:53,171 INFO L132 encePairwiseOnDemand]: 137/144 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-03-25 15:00:53,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 28 transitions, 242 flow [2021-03-25 15:00:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:00:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:00:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2021-03-25 15:00:53,173 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2021-03-25 15:00:53,173 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2021-03-25 15:00:53,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2021-03-25 15:00:53,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:53,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2021-03-25 15:00:53,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:53,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:53,176 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:53,176 INFO L185 Difference]: Start difference. First operand has 52 places, 29 transitions, 250 flow. Second operand 4 states and 462 transitions. [2021-03-25 15:00:53,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 28 transitions, 242 flow [2021-03-25 15:00:53,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 119 flow, removed 24 selfloop flow, removed 15 redundant places. [2021-03-25 15:00:53,177 INFO L241 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2021-03-25 15:00:53,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2021-03-25 15:00:53,178 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2021-03-25 15:00:53,178 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:53,178 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 0 transitions, 0 flow [2021-03-25 15:00:53,178 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 0 transitions, 0 flow [2021-03-25 15:00:53,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 15:00:53,178 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 15:00:53,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:53,179 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. [2021-03-25 15:00:53,179 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 15:00:53,179 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 15:00:53,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:53,179 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 15:00:53,179 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 15:00:53,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:53,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 15:00:53,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 03:00:53 BasicIcfg [2021-03-25 15:00:53,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 15:00:53,184 INFO L168 Benchmark]: Toolchain (without parser) took 5960.32 ms. Allocated memory was 255.9 MB in the beginning and 467.7 MB in the end (delta: 211.8 MB). Free memory was 236.0 MB in the beginning and 380.5 MB in the end (delta: -144.5 MB). Peak memory consumption was 67.3 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:53,184 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 255.9 MB. Free memory is still 238.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 15:00:53,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.20 ms. Allocated memory was 255.9 MB in the beginning and 383.8 MB in the end (delta: 127.9 MB). Free memory was 235.5 MB in the beginning and 345.8 MB in the end (delta: -110.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:53,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.35 ms. Allocated memory is still 383.8 MB. Free memory was 345.8 MB in the beginning and 344.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 15:00:53,185 INFO L168 Benchmark]: Boogie Preprocessor took 35.16 ms. Allocated memory is still 383.8 MB. Free memory was 344.1 MB in the beginning and 342.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:53,185 INFO L168 Benchmark]: RCFGBuilder took 554.68 ms. Allocated memory is still 383.8 MB. Free memory was 342.4 MB in the beginning and 356.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:53,185 INFO L168 Benchmark]: TraceAbstraction took 4879.30 ms. Allocated memory was 383.8 MB in the beginning and 467.7 MB in the end (delta: 83.9 MB). Free memory was 355.4 MB in the beginning and 380.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:53,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 255.9 MB. Free memory is still 238.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 424.20 ms. Allocated memory was 255.9 MB in the beginning and 383.8 MB in the end (delta: 127.9 MB). Free memory was 235.5 MB in the beginning and 345.8 MB in the end (delta: -110.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.35 ms. Allocated memory is still 383.8 MB. Free memory was 345.8 MB in the beginning and 344.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.16 ms. Allocated memory is still 383.8 MB. Free memory was 344.1 MB in the beginning and 342.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 554.68 ms. Allocated memory is still 383.8 MB. Free memory was 342.4 MB in the beginning and 356.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4879.30 ms. Allocated memory was 383.8 MB in the beginning and 467.7 MB in the end (delta: 83.9 MB). Free memory was 355.4 MB in the beginning and 380.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1498.0ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1029, positive: 995, positive conditional: 0, positive unconditional: 995, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 822, positive: 796, positive conditional: 0, positive unconditional: 796, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 822, positive: 796, positive conditional: 0, positive unconditional: 796, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 822, positive: 784, positive conditional: 0, positive unconditional: 784, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 153, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1029, positive: 199, positive conditional: 0, positive unconditional: 199, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 822, unknown conditional: 0, unknown unconditional: 822] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 502.9ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 202, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 202, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 485.9ms, 38 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 126, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 64 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 5, negative conditional: 0, negative unconditional: 5, 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: 0, negative unconditional: 1, 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: 0, negative unconditional: 1, 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: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3ms, 38 PlacesBefore, 38 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, 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: 27, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 61 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, 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: 27, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.6ms, 44 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 12, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.7ms, 48 PlacesBefore, 48 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 12, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7ms, 51 PlacesBefore, 51 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 10, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9ms, 50 PlacesBefore, 50 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 160 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): 84, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 385.4ms, 59 PlacesBefore, 52 PlacesAfterwards, 32 TransitionsBefore, 29 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 0, positive unconditional: 49, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 49, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 39 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): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, 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 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4768.2ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 733.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1585.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 54 SDslu, 38 SDs, 0 SdLazy, 243 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 206.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=8, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.4ms SsaConstructionTime, 207.9ms SatisfiabilityAnalysisTime, 491.7ms InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 653 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...