/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/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 07:04:48,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 07:04:48,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 07:04:48,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 07:04:48,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 07:04:48,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 07:04:48,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 07:04:48,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 07:04:48,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 07:04:48,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 07:04:48,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 07:04:48,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 07:04:48,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 07:04:48,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 07:04:48,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 07:04:48,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 07:04:48,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 07:04:48,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 07:04:48,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 07:04:48,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 07:04:48,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 07:04:48,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 07:04:48,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 07:04:48,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 07:04:48,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 07:04:48,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 07:04:48,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 07:04:48,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 07:04:48,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 07:04:48,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 07:04:48,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 07:04:48,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 07:04:48,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 07:04:48,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 07:04:48,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 07:04:48,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 07:04:48,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 07:04:48,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 07:04:48,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 07:04:48,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 07:04:48,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 07:04:48,599 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 [2021-06-11 07:04:48,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 07:04:48,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 07:04:48,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 07:04:48,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 07:04:48,624 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 07:04:48,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 07:04:48,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 07:04:48,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 07:04:48,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 07:04:48,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 07:04:48,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 07:04:48,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 07:04:48,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 07:04:48,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 07:04:48,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 07:04:48,627 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 07:04:48,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 07:04:48,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 07:04:48,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 07:04:48,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 07:04:48,939 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 07:04:48,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-06-11 07:04:49,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98dd7350a/0da7aa5320cb479fa6219bacf6faf1a5/FLAG664d790a8 [2021-06-11 07:04:49,531 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 07:04:49,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-06-11 07:04:49,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98dd7350a/0da7aa5320cb479fa6219bacf6faf1a5/FLAG664d790a8 [2021-06-11 07:04:49,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98dd7350a/0da7aa5320cb479fa6219bacf6faf1a5 [2021-06-11 07:04:49,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 07:04:49,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 07:04:49,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 07:04:49,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 07:04:49,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 07:04:49,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:04:49" (1/1) ... [2021-06-11 07:04:49,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e86414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:49, skipping insertion in model container [2021-06-11 07:04:49,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:04:49" (1/1) ... [2021-06-11 07:04:50,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 07:04:50,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 07:04:50,182 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/thin002_tso.opt.i[949,962] [2021-06-11 07:04:50,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:04:50,296 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 07:04:50,306 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/thin002_tso.opt.i[949,962] [2021-06-11 07:04:50,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:04:50,390 INFO L208 MainTranslator]: Completed translation [2021-06-11 07:04:50,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50 WrapperNode [2021-06-11 07:04:50,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 07:04:50,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 07:04:50,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 07:04:50,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 07:04:50,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 07:04:50,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 07:04:50,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 07:04:50,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 07:04:50,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... [2021-06-11 07:04:50,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 07:04:50,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 07:04:50,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 07:04:50,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 07:04:50,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 07:04:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 07:04:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 07:04:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 07:04:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 07:04:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 07:04:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 07:04:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 07:04:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 07:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 07:04:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 07:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-11 07:04:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-11 07:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 07:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 07:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 07:04:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 07:04:50,518 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 07:04:51,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 07:04:51,008 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 07:04:51,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:04:51 BoogieIcfgContainer [2021-06-11 07:04:51,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 07:04:51,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 07:04:51,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 07:04:51,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 07:04:51,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 07:04:49" (1/3) ... [2021-06-11 07:04:51,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4064aec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:04:51, skipping insertion in model container [2021-06-11 07:04:51,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:04:50" (2/3) ... [2021-06-11 07:04:51,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4064aec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:04:51, skipping insertion in model container [2021-06-11 07:04:51,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:04:51" (3/3) ... [2021-06-11 07:04:51,017 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-06-11 07:04:51,023 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 07:04:51,027 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 07:04:51,028 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 07:04:51,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,086 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,086 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,089 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,090 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,096 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,098 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,101 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,101 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,101 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,102 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,107 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:04:51,109 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 07:04:51,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-11 07:04:51,153 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 07:04:51,154 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 07:04:51,154 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 07:04:51,154 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 07:04:51,154 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 07:04:51,154 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 07:04:51,154 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 07:04:51,155 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 07:04:51,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-06-11 07:04:51,222 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-06-11 07:04:51,223 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:04:51,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-06-11 07:04:51,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-06-11 07:04:51,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-06-11 07:04:51,242 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:51,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 73 transitions, 158 flow [2021-06-11 07:04:51,257 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 73 transitions, 158 flow [2021-06-11 07:04:51,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 73 transitions, 158 flow [2021-06-11 07:04:51,287 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-06-11 07:04:51,287 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:04:51,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 07:04:51,296 INFO L151 LiptonReduction]: Number of co-enabled transitions 1392 [2021-06-11 07:04:51,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:51,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:51,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:51,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:51,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:51,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:51,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:51,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:52,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:52,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:52,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:52,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:52,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:52,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:52,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:52,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:52,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:52,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:53,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:53,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:53,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,102 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 07:04:53,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:53,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:53,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:53,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:53,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:53,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 07:04:53,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 07:04:53,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,420 INFO L147 QuantifierPusher]: treesize reduction 31, result has 11.4 percent of original size 4 [2021-06-11 07:04:53,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:53,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:53,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:53,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:53,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:53,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:53,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:54,128 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-06-11 07:04:54,340 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-06-11 07:04:54,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:54,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:04:54,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:54,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:04:54,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:04:54,433 INFO L163 LiptonReduction]: Checked pairs total: 2874 [2021-06-11 07:04:54,433 INFO L165 LiptonReduction]: Total number of compositions: 54 [2021-06-11 07:04:54,435 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3194 [2021-06-11 07:04:54,443 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-06-11 07:04:54,443 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:04:54,443 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:54,444 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:54,444 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:54,449 INFO L82 PathProgramCache]: Analyzing trace with hash -835305892, now seen corresponding path program 1 times [2021-06-11 07:04:54,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:54,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998851920] [2021-06-11 07:04:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:54,638 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:04:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:04:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:54,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998851920] [2021-06-11 07:04:54,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:54,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 07:04:54,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713484967] [2021-06-11 07:04:54,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:04:54,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:54,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:04:54,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:04:54,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 145 [2021-06-11 07:04:54,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:54,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 145 [2021-06-11 07:04:54,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:54,735 INFO L129 PetriNetUnfolder]: 45/130 cut-off events. [2021-06-11 07:04:54,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:04:54,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 130 events. 45/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 556 event pairs, 23 based on Foata normal form. 12/128 useless extension candidates. Maximal degree in co-relation 209. Up to 76 conditions per place. [2021-06-11 07:04:54,738 INFO L132 encePairwiseOnDemand]: 138/145 looper letters, 5 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2021-06-11 07:04:54,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 84 flow [2021-06-11 07:04:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:04:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:04:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2021-06-11 07:04:54,750 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7954022988505747 [2021-06-11 07:04:54,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2021-06-11 07:04:54,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2021-06-11 07:04:54,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:54,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2021-06-11 07:04:54,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,764 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 58 flow. Second operand 3 states and 346 transitions. [2021-06-11 07:04:54,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 84 flow [2021-06-11 07:04:54,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 07:04:54,768 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 85 flow [2021-06-11 07:04:54,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-06-11 07:04:54,770 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2021-06-11 07:04:54,770 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:54,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 85 flow [2021-06-11 07:04:54,771 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 85 flow [2021-06-11 07:04:54,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 85 flow [2021-06-11 07:04:54,792 INFO L129 PetriNetUnfolder]: 45/134 cut-off events. [2021-06-11 07:04:54,792 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:04:54,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 134 events. 45/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 596 event pairs, 23 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 217. Up to 76 conditions per place. [2021-06-11 07:04:54,795 INFO L151 LiptonReduction]: Number of co-enabled transitions 236 [2021-06-11 07:04:54,799 INFO L163 LiptonReduction]: Checked pairs total: 128 [2021-06-11 07:04:54,799 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:54,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 07:04:54,800 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 85 flow [2021-06-11 07:04:54,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:54,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:54,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 07:04:54,801 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:54,808 INFO L82 PathProgramCache]: Analyzing trace with hash -124679202, now seen corresponding path program 1 times [2021-06-11 07:04:54,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:54,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061324677] [2021-06-11 07:04:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:54,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:54,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:54,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:54,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061324677] [2021-06-11 07:04:54,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:54,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 07:04:54,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716667651] [2021-06-11 07:04:54,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:04:54,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:54,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:04:54,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:04:54,913 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 145 [2021-06-11 07:04:54,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:54,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 145 [2021-06-11 07:04:54,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:54,947 INFO L129 PetriNetUnfolder]: 29/97 cut-off events. [2021-06-11 07:04:54,947 INFO L130 PetriNetUnfolder]: For 22/46 co-relation queries the response was YES. [2021-06-11 07:04:54,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 97 events. 29/97 cut-off events. For 22/46 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 371 event pairs, 14 based on Foata normal form. 4/91 useless extension candidates. Maximal degree in co-relation 173. Up to 53 conditions per place. [2021-06-11 07:04:54,948 INFO L132 encePairwiseOnDemand]: 142/145 looper letters, 1 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-06-11 07:04:54,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 93 flow [2021-06-11 07:04:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:04:54,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:04:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2021-06-11 07:04:54,952 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.871264367816092 [2021-06-11 07:04:54,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 379 transitions. [2021-06-11 07:04:54,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions. [2021-06-11 07:04:54,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:54,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions. [2021-06-11 07:04:54,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,956 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 85 flow. Second operand 3 states and 379 transitions. [2021-06-11 07:04:54,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 93 flow [2021-06-11 07:04:54,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 07:04:54,957 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 91 flow [2021-06-11 07:04:54,958 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-06-11 07:04:54,958 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2021-06-11 07:04:54,960 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:54,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 91 flow [2021-06-11 07:04:54,961 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 91 flow [2021-06-11 07:04:54,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 91 flow [2021-06-11 07:04:54,971 INFO L129 PetriNetUnfolder]: 29/105 cut-off events. [2021-06-11 07:04:54,971 INFO L130 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2021-06-11 07:04:54,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 105 events. 29/105 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 442 event pairs, 18 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 185. Up to 53 conditions per place. [2021-06-11 07:04:54,979 INFO L151 LiptonReduction]: Number of co-enabled transitions 236 [2021-06-11 07:04:54,982 INFO L163 LiptonReduction]: Checked pairs total: 128 [2021-06-11 07:04:54,982 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:54,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-06-11 07:04:54,986 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 91 flow [2021-06-11 07:04:54,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:54,987 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:54,987 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:54,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 07:04:54,987 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:54,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1022085523, now seen corresponding path program 1 times [2021-06-11 07:04:54,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:54,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707780308] [2021-06-11 07:04:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,078 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:04:55,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:04:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707780308] [2021-06-11 07:04:55,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:04:55,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504321461] [2021-06-11 07:04:55,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:04:55,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:04:55,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:04:55,105 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2021-06-11 07:04:55,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2021-06-11 07:04:55,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,175 INFO L129 PetriNetUnfolder]: 52/165 cut-off events. [2021-06-11 07:04:55,175 INFO L130 PetriNetUnfolder]: For 86/471 co-relation queries the response was YES. [2021-06-11 07:04:55,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 165 events. 52/165 cut-off events. For 86/471 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 839 event pairs, 12 based on Foata normal form. 17/172 useless extension candidates. Maximal degree in co-relation 382. Up to 82 conditions per place. [2021-06-11 07:04:55,177 INFO L132 encePairwiseOnDemand]: 138/145 looper letters, 9 selfloop transitions, 12 changer transitions 0/36 dead transitions. [2021-06-11 07:04:55,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 176 flow [2021-06-11 07:04:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:04:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:04:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 555 transitions. [2021-06-11 07:04:55,182 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7655172413793103 [2021-06-11 07:04:55,182 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 555 transitions. [2021-06-11 07:04:55,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 555 transitions. [2021-06-11 07:04:55,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 555 transitions. [2021-06-11 07:04:55,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,187 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,187 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 91 flow. Second operand 5 states and 555 transitions. [2021-06-11 07:04:55,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 176 flow [2021-06-11 07:04:55,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 07:04:55,189 INFO L241 Difference]: Finished difference. Result has 41 places, 33 transitions, 172 flow [2021-06-11 07:04:55,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2021-06-11 07:04:55,189 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2021-06-11 07:04:55,189 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,189 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 33 transitions, 172 flow [2021-06-11 07:04:55,190 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 33 transitions, 172 flow [2021-06-11 07:04:55,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 33 transitions, 172 flow [2021-06-11 07:04:55,207 INFO L129 PetriNetUnfolder]: 41/153 cut-off events. [2021-06-11 07:04:55,207 INFO L130 PetriNetUnfolder]: For 121/256 co-relation queries the response was YES. [2021-06-11 07:04:55,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 153 events. 41/153 cut-off events. For 121/256 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 807 event pairs, 11 based on Foata normal form. 1/147 useless extension candidates. Maximal degree in co-relation 412. Up to 78 conditions per place. [2021-06-11 07:04:55,210 INFO L151 LiptonReduction]: Number of co-enabled transitions 344 [2021-06-11 07:04:55,219 INFO L163 LiptonReduction]: Checked pairs total: 133 [2021-06-11 07:04:55,219 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:55,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 07:04:55,220 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 172 flow [2021-06-11 07:04:55,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,220 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:55,220 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:55,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 07:04:55,221 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:55,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:55,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1629783107, now seen corresponding path program 1 times [2021-06-11 07:04:55,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:55,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214405811] [2021-06-11 07:04:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214405811] [2021-06-11 07:04:55,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:04:55,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528279987] [2021-06-11 07:04:55,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:04:55,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:04:55,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:04:55,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 145 [2021-06-11 07:04:55,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 145 [2021-06-11 07:04:55,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,342 INFO L129 PetriNetUnfolder]: 31/136 cut-off events. [2021-06-11 07:04:55,342 INFO L130 PetriNetUnfolder]: For 294/722 co-relation queries the response was YES. [2021-06-11 07:04:55,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 136 events. 31/136 cut-off events. For 294/722 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 741 event pairs, 10 based on Foata normal form. 16/144 useless extension candidates. Maximal degree in co-relation 370. Up to 62 conditions per place. [2021-06-11 07:04:55,344 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 1 selfloop transitions, 3 changer transitions 8/33 dead transitions. [2021-06-11 07:04:55,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 33 transitions, 186 flow [2021-06-11 07:04:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:04:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:04:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2021-06-11 07:04:55,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8327586206896552 [2021-06-11 07:04:55,347 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2021-06-11 07:04:55,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2021-06-11 07:04:55,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2021-06-11 07:04:55,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,350 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,350 INFO L185 Difference]: Start difference. First operand has 41 places, 33 transitions, 172 flow. Second operand 4 states and 483 transitions. [2021-06-11 07:04:55,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 33 transitions, 186 flow [2021-06-11 07:04:55,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 178 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-06-11 07:04:55,353 INFO L241 Difference]: Finished difference. Result has 45 places, 25 transitions, 126 flow [2021-06-11 07:04:55,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=25} [2021-06-11 07:04:55,354 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2021-06-11 07:04:55,354 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 25 transitions, 126 flow [2021-06-11 07:04:55,354 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 25 transitions, 126 flow [2021-06-11 07:04:55,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 25 transitions, 126 flow [2021-06-11 07:04:55,363 INFO L129 PetriNetUnfolder]: 13/59 cut-off events. [2021-06-11 07:04:55,363 INFO L130 PetriNetUnfolder]: For 95/115 co-relation queries the response was YES. [2021-06-11 07:04:55,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 59 events. 13/59 cut-off events. For 95/115 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 209 event pairs, 5 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 173. Up to 29 conditions per place. [2021-06-11 07:04:55,364 INFO L151 LiptonReduction]: Number of co-enabled transitions 210 [2021-06-11 07:04:55,366 INFO L163 LiptonReduction]: Checked pairs total: 89 [2021-06-11 07:04:55,367 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:55,367 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 07:04:55,373 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 126 flow [2021-06-11 07:04:55,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,374 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:55,374 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:55,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 07:04:55,375 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:55,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:55,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1656145263, now seen corresponding path program 1 times [2021-06-11 07:04:55,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:55,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603625460] [2021-06-11 07:04:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,447 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:04:55,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:04:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603625460] [2021-06-11 07:04:55,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:04:55,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092652009] [2021-06-11 07:04:55,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:04:55,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:04:55,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:04:55,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 145 [2021-06-11 07:04:55,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 25 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 145 [2021-06-11 07:04:55,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,490 INFO L129 PetriNetUnfolder]: 10/56 cut-off events. [2021-06-11 07:04:55,491 INFO L130 PetriNetUnfolder]: For 147/236 co-relation queries the response was YES. [2021-06-11 07:04:55,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 56 events. 10/56 cut-off events. For 147/236 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 170 event pairs, 2 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 166. Up to 24 conditions per place. [2021-06-11 07:04:55,491 INFO L132 encePairwiseOnDemand]: 142/145 looper letters, 9 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-06-11 07:04:55,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 28 transitions, 174 flow [2021-06-11 07:04:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:04:55,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:04:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2021-06-11 07:04:55,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7885057471264367 [2021-06-11 07:04:55,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2021-06-11 07:04:55,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2021-06-11 07:04:55,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2021-06-11 07:04:55,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,500 INFO L185 Difference]: Start difference. First operand has 44 places, 25 transitions, 126 flow. Second operand 3 states and 343 transitions. [2021-06-11 07:04:55,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 28 transitions, 174 flow [2021-06-11 07:04:55,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 120 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-06-11 07:04:55,504 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 93 flow [2021-06-11 07:04:55,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-06-11 07:04:55,505 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2021-06-11 07:04:55,505 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 93 flow [2021-06-11 07:04:55,505 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 93 flow [2021-06-11 07:04:55,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 93 flow [2021-06-11 07:04:55,511 INFO L129 PetriNetUnfolder]: 10/54 cut-off events. [2021-06-11 07:04:55,511 INFO L130 PetriNetUnfolder]: For 14/18 co-relation queries the response was YES. [2021-06-11 07:04:55,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 54 events. 10/54 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 175 event pairs, 4 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 104. Up to 24 conditions per place. [2021-06-11 07:04:55,512 INFO L151 LiptonReduction]: Number of co-enabled transitions 210 [2021-06-11 07:04:55,514 INFO L163 LiptonReduction]: Checked pairs total: 106 [2021-06-11 07:04:55,514 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:55,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 07:04:55,515 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 93 flow [2021-06-11 07:04:55,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:55,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:55,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 07:04:55,515 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:55,516 INFO L82 PathProgramCache]: Analyzing trace with hash 199104011, now seen corresponding path program 1 times [2021-06-11 07:04:55,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:55,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511180532] [2021-06-11 07:04:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,546 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:04:55,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:04:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511180532] [2021-06-11 07:04:55,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:04:55,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313366500] [2021-06-11 07:04:55,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:04:55,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:04:55,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:04:55,556 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2021-06-11 07:04:55,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2021-06-11 07:04:55,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,587 INFO L129 PetriNetUnfolder]: 18/86 cut-off events. [2021-06-11 07:04:55,587 INFO L130 PetriNetUnfolder]: For 68/150 co-relation queries the response was YES. [2021-06-11 07:04:55,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 86 events. 18/86 cut-off events. For 68/150 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 363 event pairs, 2 based on Foata normal form. 12/96 useless extension candidates. Maximal degree in co-relation 202. Up to 37 conditions per place. [2021-06-11 07:04:55,588 INFO L132 encePairwiseOnDemand]: 138/145 looper letters, 8 selfloop transitions, 10 changer transitions 0/33 dead transitions. [2021-06-11 07:04:55,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 168 flow [2021-06-11 07:04:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:04:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:04:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 553 transitions. [2021-06-11 07:04:55,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7627586206896552 [2021-06-11 07:04:55,590 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 553 transitions. [2021-06-11 07:04:55,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 553 transitions. [2021-06-11 07:04:55,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 553 transitions. [2021-06-11 07:04:55,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,593 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,593 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 93 flow. Second operand 5 states and 553 transitions. [2021-06-11 07:04:55,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 168 flow [2021-06-11 07:04:55,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 07:04:55,595 INFO L241 Difference]: Finished difference. Result has 43 places, 31 transitions, 163 flow [2021-06-11 07:04:55,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2021-06-11 07:04:55,595 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2021-06-11 07:04:55,595 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 31 transitions, 163 flow [2021-06-11 07:04:55,596 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 31 transitions, 163 flow [2021-06-11 07:04:55,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 31 transitions, 163 flow [2021-06-11 07:04:55,603 INFO L129 PetriNetUnfolder]: 15/82 cut-off events. [2021-06-11 07:04:55,603 INFO L130 PetriNetUnfolder]: For 74/97 co-relation queries the response was YES. [2021-06-11 07:04:55,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 82 events. 15/82 cut-off events. For 74/97 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 358 event pairs, 0 based on Foata normal form. 2/83 useless extension candidates. Maximal degree in co-relation 219. Up to 36 conditions per place. [2021-06-11 07:04:55,605 INFO L151 LiptonReduction]: Number of co-enabled transitions 282 [2021-06-11 07:04:55,607 INFO L163 LiptonReduction]: Checked pairs total: 109 [2021-06-11 07:04:55,607 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:55,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 07:04:55,608 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 163 flow [2021-06-11 07:04:55,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:55,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:55,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 07:04:55,609 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:55,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:55,609 INFO L82 PathProgramCache]: Analyzing trace with hash 131171685, now seen corresponding path program 2 times [2021-06-11 07:04:55,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:55,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917435279] [2021-06-11 07:04:55,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917435279] [2021-06-11 07:04:55,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:04:55,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214105558] [2021-06-11 07:04:55,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:04:55,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:04:55,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:04:55,642 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 145 [2021-06-11 07:04:55,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 145 [2021-06-11 07:04:55,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,664 INFO L129 PetriNetUnfolder]: 16/99 cut-off events. [2021-06-11 07:04:55,664 INFO L130 PetriNetUnfolder]: For 141/199 co-relation queries the response was YES. [2021-06-11 07:04:55,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 99 events. 16/99 cut-off events. For 141/199 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 450 event pairs, 2 based on Foata normal form. 6/103 useless extension candidates. Maximal degree in co-relation 262. Up to 40 conditions per place. [2021-06-11 07:04:55,665 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 1 selfloop transitions, 4 changer transitions 6/33 dead transitions. [2021-06-11 07:04:55,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 33 transitions, 193 flow [2021-06-11 07:04:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:04:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:04:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2021-06-11 07:04:55,666 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8327586206896552 [2021-06-11 07:04:55,666 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2021-06-11 07:04:55,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2021-06-11 07:04:55,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2021-06-11 07:04:55,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,669 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,670 INFO L185 Difference]: Start difference. First operand has 43 places, 31 transitions, 163 flow. Second operand 4 states and 483 transitions. [2021-06-11 07:04:55,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 33 transitions, 193 flow [2021-06-11 07:04:55,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 188 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 07:04:55,671 INFO L241 Difference]: Finished difference. Result has 47 places, 27 transitions, 149 flow [2021-06-11 07:04:55,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=47, PETRI_TRANSITIONS=27} [2021-06-11 07:04:55,672 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2021-06-11 07:04:55,672 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 27 transitions, 149 flow [2021-06-11 07:04:55,672 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 27 transitions, 149 flow [2021-06-11 07:04:55,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 27 transitions, 149 flow [2021-06-11 07:04:55,677 INFO L129 PetriNetUnfolder]: 3/45 cut-off events. [2021-06-11 07:04:55,677 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-06-11 07:04:55,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 45 events. 3/45 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 117. Up to 16 conditions per place. [2021-06-11 07:04:55,678 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-11 07:04:55,680 INFO L163 LiptonReduction]: Checked pairs total: 58 [2021-06-11 07:04:55,680 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:55,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 07:04:55,680 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 149 flow [2021-06-11 07:04:55,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:55,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:55,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 07:04:55,681 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:55,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:55,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1487841812, now seen corresponding path program 1 times [2021-06-11 07:04:55,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:55,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972483848] [2021-06-11 07:04:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,712 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:04:55,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:04:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972483848] [2021-06-11 07:04:55,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 07:04:55,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793114964] [2021-06-11 07:04:55,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:04:55,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:04:55,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:04:55,723 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2021-06-11 07:04:55,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2021-06-11 07:04:55,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,741 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-06-11 07:04:55,741 INFO L130 PetriNetUnfolder]: For 108/116 co-relation queries the response was YES. [2021-06-11 07:04:55,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 45 events. 2/45 cut-off events. For 108/116 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 105 event pairs, 0 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 126. Up to 15 conditions per place. [2021-06-11 07:04:55,742 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 4 selfloop transitions, 3 changer transitions 5/27 dead transitions. [2021-06-11 07:04:55,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 27 transitions, 173 flow [2021-06-11 07:04:55,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:04:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:04:55,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2021-06-11 07:04:55,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7551724137931034 [2021-06-11 07:04:55,744 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 438 transitions. [2021-06-11 07:04:55,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 438 transitions. [2021-06-11 07:04:55,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 438 transitions. [2021-06-11 07:04:55,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,746 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,747 INFO L185 Difference]: Start difference. First operand has 46 places, 27 transitions, 149 flow. Second operand 4 states and 438 transitions. [2021-06-11 07:04:55,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 27 transitions, 173 flow [2021-06-11 07:04:55,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 27 transitions, 151 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 07:04:55,748 INFO L241 Difference]: Finished difference. Result has 44 places, 22 transitions, 102 flow [2021-06-11 07:04:55,748 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=44, PETRI_TRANSITIONS=22} [2021-06-11 07:04:55,748 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2021-06-11 07:04:55,749 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,749 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 22 transitions, 102 flow [2021-06-11 07:04:55,749 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 22 transitions, 102 flow [2021-06-11 07:04:55,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 22 transitions, 102 flow [2021-06-11 07:04:55,752 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-06-11 07:04:55,752 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-06-11 07:04:55,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 22 events. 0/22 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-06-11 07:04:55,752 INFO L151 LiptonReduction]: Number of co-enabled transitions 70 [2021-06-11 07:04:55,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:04:55,781 INFO L163 LiptonReduction]: Checked pairs total: 66 [2021-06-11 07:04:55,781 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:04:55,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 07:04:55,782 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 21 transitions, 100 flow [2021-06-11 07:04:55,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:04:55,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:04:55,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 07:04:55,782 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:04:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:04:55,783 INFO L82 PathProgramCache]: Analyzing trace with hash -900451480, now seen corresponding path program 1 times [2021-06-11 07:04:55,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:04:55,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209837733] [2021-06-11 07:04:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:04:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:04:55,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:04:55,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:04:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:04:55,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209837733] [2021-06-11 07:04:55,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:04:55,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:04:55,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717592797] [2021-06-11 07:04:55,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:04:55,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:04:55,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:04:55,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:04:55,816 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 146 [2021-06-11 07:04:55,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 21 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:04:55,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 146 [2021-06-11 07:04:55,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:04:55,826 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 07:04:55,826 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-06-11 07:04:55,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 20 events. 0/20 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-06-11 07:04:55,826 INFO L132 encePairwiseOnDemand]: 143/146 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-06-11 07:04:55,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 92 flow [2021-06-11 07:04:55,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:04:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:04:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 489 transitions. [2021-06-11 07:04:55,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8373287671232876 [2021-06-11 07:04:55,828 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 489 transitions. [2021-06-11 07:04:55,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 489 transitions. [2021-06-11 07:04:55,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:04:55,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 489 transitions. [2021-06-11 07:04:55,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,831 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,831 INFO L185 Difference]: Start difference. First operand has 43 places, 21 transitions, 100 flow. Second operand 4 states and 489 transitions. [2021-06-11 07:04:55,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 92 flow [2021-06-11 07:04:55,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 54 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-06-11 07:04:55,832 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-06-11 07:04:55,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-06-11 07:04:55,832 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2021-06-11 07:04:55,832 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:04:55,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-06-11 07:04:55,833 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-06-11 07:04:55,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 07:04:55,833 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 07:04:55,833 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:04:55,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 07:04:55,833 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 07:04:55,833 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 07:04:55,833 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:04:55,833 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 07:04:55,834 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 07:04:55,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:04:55,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 07:04:55,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 07:04:55 BasicIcfg [2021-06-11 07:04:55,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 07:04:55,838 INFO L168 Benchmark]: Toolchain (without parser) took 5847.58 ms. Allocated memory was 352.3 MB in the beginning and 436.2 MB in the end (delta: 83.9 MB). Free memory was 315.2 MB in the beginning and 243.9 MB in the end (delta: 71.3 MB). Peak memory consumption was 156.9 MB. Max. memory is 16.0 GB. [2021-06-11 07:04:55,838 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 352.3 MB. Free memory was 333.4 MB in the beginning and 333.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 07:04:55,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.47 ms. Allocated memory is still 352.3 MB. Free memory was 315.0 MB in the beginning and 308.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-11 07:04:55,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.52 ms. Allocated memory is still 352.3 MB. Free memory was 308.9 MB in the beginning and 306.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:04:55,839 INFO L168 Benchmark]: Boogie Preprocessor took 19.37 ms. Allocated memory is still 352.3 MB. Free memory was 306.8 MB in the beginning and 305.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 07:04:55,839 INFO L168 Benchmark]: RCFGBuilder took 564.76 ms. Allocated memory is still 352.3 MB. Free memory was 304.7 MB in the beginning and 279.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 07:04:55,839 INFO L168 Benchmark]: TraceAbstraction took 4824.46 ms. Allocated memory was 352.3 MB in the beginning and 436.2 MB in the end (delta: 83.9 MB). Free memory was 279.5 MB in the beginning and 243.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 120.6 MB. Max. memory is 16.0 GB. [2021-06-11 07:04:55,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 352.3 MB. Free memory was 333.4 MB in the beginning and 333.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 399.47 ms. Allocated memory is still 352.3 MB. Free memory was 315.0 MB in the beginning and 308.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.52 ms. Allocated memory is still 352.3 MB. Free memory was 308.9 MB in the beginning and 306.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.37 ms. Allocated memory is still 352.3 MB. Free memory was 306.8 MB in the beginning and 305.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 564.76 ms. Allocated memory is still 352.3 MB. Free memory was 304.7 MB in the beginning and 279.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4824.46 ms. Allocated memory was 352.3 MB in the beginning and 436.2 MB in the end (delta: 83.9 MB). Free memory was 279.5 MB in the beginning and 243.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 120.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3175.7ms, 85 PlacesBefore, 35 PlacesAfterwards, 73 TransitionsBefore, 23 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 2874 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1638, positive: 1531, positive conditional: 0, positive unconditional: 1531, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 957, positive: 914, positive conditional: 0, positive unconditional: 914, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 957, positive: 914, positive conditional: 0, positive unconditional: 914, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 957, positive: 898, positive conditional: 0, positive unconditional: 898, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 226, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1638, positive: 617, positive conditional: 0, positive unconditional: 617, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 957, unknown conditional: 0, unknown unconditional: 957] , Statistics on independence cache: Total cache size (in pairs): 1556, Positive cache size: 1513, Positive conditional cache size: 0, Positive unconditional cache size: 1513, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.3ms, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 68, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 68, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 1565, Positive cache size: 1522, Positive conditional cache size: 0, Positive unconditional cache size: 1522, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9ms, 36 PlacesBefore, 36 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 80, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 1573, Positive cache size: 1530, Positive conditional cache size: 0, Positive unconditional cache size: 1530, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.2ms, 41 PlacesBefore, 41 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 133 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 53, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1573, Positive cache size: 1530, Positive conditional cache size: 0, Positive unconditional cache size: 1530, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3ms, 45 PlacesBefore, 44 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 89 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 52, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1576, Positive cache size: 1533, Positive conditional cache size: 0, Positive unconditional cache size: 1533, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6ms, 38 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 57, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 8, negative conditional: 0, negative unconditional: 8, 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: 57, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1576, Positive cache size: 1533, Positive conditional cache size: 0, Positive unconditional cache size: 1533, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.6ms, 43 PlacesBefore, 43 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 109 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 47, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1577, Positive cache size: 1534, Positive conditional cache size: 0, Positive unconditional cache size: 1534, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 47 PlacesBefore, 46 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 58 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 4, negative conditional: 0, negative unconditional: 4, 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: 30, positive: 25, positive conditional: 0, positive unconditional: 25, 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): 1578, Positive cache size: 1535, Positive conditional cache size: 0, Positive unconditional cache size: 1535, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.2ms, 44 PlacesBefore, 43 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 66 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 40, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1632, Positive cache size: 1589, Positive conditional cache size: 0, Positive unconditional cache size: 1589, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 32 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): 1632, Positive cache size: 1589, Positive conditional cache size: 0, Positive unconditional cache size: 1589, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - 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, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4685.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 430.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3284.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 26 SDslu, 16 SDs, 0 SdLazy, 57 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 156.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=3, InterpolantAutomatonStates: 35, 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: 23.2ms SsaConstructionTime, 168.7ms SatisfiabilityAnalysisTime, 437.1ms InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 663 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...