/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/safe026_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:57:04,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:57:04,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:57:04,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:57:04,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:57:04,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:57:04,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:57:04,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:57:04,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:57:04,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:57:04,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:57:04,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:57:04,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:57:04,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:57:04,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:57:04,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:57:04,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:57:04,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:57:04,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:57:04,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:57:04,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:57:04,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:57:04,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:57:04,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:57:04,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:57:04,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:57:04,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:57:04,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:57:04,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:57:04,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:57:04,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:57:04,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:57:04,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:57:04,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:57:04,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:57:04,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:57:04,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:57:04,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:57:04,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:57:04,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:57:04,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:57:04,298 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 06:57:04,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:57:04,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:57:04,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:57:04,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:57:04,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:57:04,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:57:04,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:57:04,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:57:04,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:57:04,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:57:04,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:57:04,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:57:04,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:57:04,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:57:04,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:57:04,565 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:57:04,565 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:57:04,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.opt.i [2021-06-11 06:57:04,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba28eb43f/a8ca1713fa644112b579c6818a4fb886/FLAGa6d9ad8a8 [2021-06-11 06:57:05,048 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:57:05,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.opt.i [2021-06-11 06:57:05,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba28eb43f/a8ca1713fa644112b579c6818a4fb886/FLAGa6d9ad8a8 [2021-06-11 06:57:05,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba28eb43f/a8ca1713fa644112b579c6818a4fb886 [2021-06-11 06:57:05,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:57:05,080 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:57:05,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:57:05,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:57:05,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:57:05,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a818ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05, skipping insertion in model container [2021-06-11 06:57:05,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:57:05,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:57:05,279 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/safe026_tso.opt.i[949,962] [2021-06-11 06:57:05,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:57:05,386 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:57:05,392 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/safe026_tso.opt.i[949,962] [2021-06-11 06:57:05,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:57:05,449 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:57:05,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05 WrapperNode [2021-06-11 06:57:05,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:57:05,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:57:05,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:57:05,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:57:05,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:57:05,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:57:05,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:57:05,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:57:05,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (1/1) ... [2021-06-11 06:57:05,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:57:05,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:57:05,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:57:05,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:57:05,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (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 06:57:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:57:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:57:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:57:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:57:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:57:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:57:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:57:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:57:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:57:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:57:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:57:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:57:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:57:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:57:05,557 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 06:57:05,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:57:05,793 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:57:05,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:57:05 BoogieIcfgContainer [2021-06-11 06:57:05,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:57:05,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:57:05,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:57:05,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:57:05,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:57:05" (1/3) ... [2021-06-11 06:57:05,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2fa05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:57:05, skipping insertion in model container [2021-06-11 06:57:05,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:57:05" (2/3) ... [2021-06-11 06:57:05,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2fa05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:57:05, skipping insertion in model container [2021-06-11 06:57:05,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:57:05" (3/3) ... [2021-06-11 06:57:05,799 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.opt.i [2021-06-11 06:57:05,802 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:57:05,805 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:57:05,805 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:57:05,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,827 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,828 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,828 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:57:05,833 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:57:05,845 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:57:05,857 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:57:05,857 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:57:05,857 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:57:05,857 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:57:05,857 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:57:05,857 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:57:05,857 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:57:05,857 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:57:05,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 06:57:05,884 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-06-11 06:57:05,884 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:57:05,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-11 06:57:05,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 06:57:05,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-06-11 06:57:05,889 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:05,896 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 06:57:05,902 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 06:57:05,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-06-11 06:57:05,919 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-06-11 06:57:05,920 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:57:05,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-11 06:57:05,924 INFO L151 LiptonReduction]: Number of co-enabled transitions 804 [2021-06-11 06:57:05,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:05,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:06,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:06,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:06,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:06,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:06,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:06,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:06,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:06,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:57:06,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:06,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,692 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:57:06,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:57:06,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:06,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:06,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:06,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:06,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:06,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:07,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:07,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:07,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:07,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:07,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:07,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:07,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:07,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:07,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 06:57:07,664 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 06:57:07,874 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 06:57:07,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:57:07,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:07,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:07,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:57:07,967 INFO L163 LiptonReduction]: Checked pairs total: 1211 [2021-06-11 06:57:07,967 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 06:57:07,969 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2081 [2021-06-11 06:57:07,979 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-11 06:57:07,979 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:57:07,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:07,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:07,980 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:07,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:07,983 INFO L82 PathProgramCache]: Analyzing trace with hash -93026423, now seen corresponding path program 1 times [2021-06-11 06:57:07,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:07,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950129573] [2021-06-11 06:57:07,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,158 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 06:57:08,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950129573] [2021-06-11 06:57:08,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:57:08,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437243367] [2021-06-11 06:57:08,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:57:08,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:57:08,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:57:08,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2021-06-11 06:57:08,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 06:57:08,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2021-06-11 06:57:08,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,194 INFO L129 PetriNetUnfolder]: 12/50 cut-off events. [2021-06-11 06:57:08,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:57:08,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 50 events. 12/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 145 event pairs, 6 based on Foata normal form. 2/49 useless extension candidates. Maximal degree in co-relation 77. Up to 25 conditions per place. [2021-06-11 06:57:08,196 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 5 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-06-11 06:57:08,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 63 flow [2021-06-11 06:57:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:57:08,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:57:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2021-06-11 06:57:08,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8389830508474576 [2021-06-11 06:57:08,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2021-06-11 06:57:08,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2021-06-11 06:57:08,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2021-06-11 06:57:08,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 06:57:08,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,212 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 297 transitions. [2021-06-11 06:57:08,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 63 flow [2021-06-11 06:57:08,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 60 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:57:08,215 INFO L241 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2021-06-11 06:57:08,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2021-06-11 06:57:08,216 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-11 06:57:08,217 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 18 transitions, 57 flow [2021-06-11 06:57:08,217 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 18 transitions, 57 flow [2021-06-11 06:57:08,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 18 transitions, 57 flow [2021-06-11 06:57:08,220 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-06-11 06:57:08,220 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:57:08,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 24 events. 3/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 1 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 37. Up to 10 conditions per place. [2021-06-11 06:57:08,221 INFO L151 LiptonReduction]: Number of co-enabled transitions 124 [2021-06-11 06:57:08,232 INFO L163 LiptonReduction]: Checked pairs total: 68 [2021-06-11 06:57:08,232 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 06:57:08,233 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2021-06-11 06:57:08,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 06:57:08,233 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,233 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:57:08,233 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1393737033, now seen corresponding path program 1 times [2021-06-11 06:57:08,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106367123] [2021-06-11 06:57:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,268 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 06:57:08,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106367123] [2021-06-11 06:57:08,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:57:08,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499591854] [2021-06-11 06:57:08,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:57:08,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:57:08,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:57:08,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 118 [2021-06-11 06:57:08,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 06:57:08,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 118 [2021-06-11 06:57:08,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,278 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-06-11 06:57:08,278 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-06-11 06:57:08,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 24 events. 3/24 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 1 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 41. Up to 10 conditions per place. [2021-06-11 06:57:08,279 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 1 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2021-06-11 06:57:08,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 63 flow [2021-06-11 06:57:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:57:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:57:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-06-11 06:57:08,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2021-06-11 06:57:08,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-06-11 06:57:08,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-06-11 06:57:08,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-06-11 06:57:08,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,283 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 3 states and 298 transitions. [2021-06-11 06:57:08,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 63 flow [2021-06-11 06:57:08,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:57:08,284 INFO L241 Difference]: Finished difference. Result has 28 places, 18 transitions, 62 flow [2021-06-11 06:57:08,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2021-06-11 06:57:08,284 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2021-06-11 06:57:08,284 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 18 transitions, 62 flow [2021-06-11 06:57:08,285 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 18 transitions, 62 flow [2021-06-11 06:57:08,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 18 transitions, 62 flow [2021-06-11 06:57:08,287 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-06-11 06:57:08,287 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 06:57:08,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 1 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-06-11 06:57:08,288 INFO L151 LiptonReduction]: Number of co-enabled transitions 122 [2021-06-11 06:57:08,288 INFO L163 LiptonReduction]: Checked pairs total: 50 [2021-06-11 06:57:08,289 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,289 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 06:57:08,289 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 62 flow [2021-06-11 06:57:08,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 06:57:08,289 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,290 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:57:08,290 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,290 INFO L82 PathProgramCache]: Analyzing trace with hash 795811407, now seen corresponding path program 1 times [2021-06-11 06:57:08,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453365685] [2021-06-11 06:57:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,323 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:57:08,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:08,329 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 06:57:08,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453365685] [2021-06-11 06:57:08,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:57:08,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435348632] [2021-06-11 06:57:08,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:57:08,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:57:08,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:57:08,331 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-11 06:57:08,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 06:57:08,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-11 06:57:08,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,355 INFO L129 PetriNetUnfolder]: 15/67 cut-off events. [2021-06-11 06:57:08,355 INFO L130 PetriNetUnfolder]: For 35/37 co-relation queries the response was YES. [2021-06-11 06:57:08,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 67 events. 15/67 cut-off events. For 35/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 253 event pairs, 3 based on Foata normal form. 10/76 useless extension candidates. Maximal degree in co-relation 151. Up to 27 conditions per place. [2021-06-11 06:57:08,356 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 6 changer transitions 3/24 dead transitions. [2021-06-11 06:57:08,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 109 flow [2021-06-11 06:57:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:57:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:57:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 461 transitions. [2021-06-11 06:57:08,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7813559322033898 [2021-06-11 06:57:08,358 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 461 transitions. [2021-06-11 06:57:08,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 461 transitions. [2021-06-11 06:57:08,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 461 transitions. [2021-06-11 06:57:08,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,361 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,361 INFO L185 Difference]: Start difference. First operand has 28 places, 18 transitions, 62 flow. Second operand 5 states and 461 transitions. [2021-06-11 06:57:08,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 109 flow [2021-06-11 06:57:08,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:57:08,362 INFO L241 Difference]: Finished difference. Result has 33 places, 20 transitions, 93 flow [2021-06-11 06:57:08,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2021-06-11 06:57:08,362 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-11 06:57:08,362 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 20 transitions, 93 flow [2021-06-11 06:57:08,363 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 20 transitions, 93 flow [2021-06-11 06:57:08,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 20 transitions, 93 flow [2021-06-11 06:57:08,367 INFO L129 PetriNetUnfolder]: 7/47 cut-off events. [2021-06-11 06:57:08,367 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-06-11 06:57:08,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 47 events. 7/47 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 145 event pairs, 3 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 112. Up to 16 conditions per place. [2021-06-11 06:57:08,367 INFO L151 LiptonReduction]: Number of co-enabled transitions 114 [2021-06-11 06:57:08,368 INFO L163 LiptonReduction]: Checked pairs total: 45 [2021-06-11 06:57:08,368 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 06:57:08,369 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 93 flow [2021-06-11 06:57:08,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 06:57:08,369 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,369 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:57:08,370 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,370 INFO L82 PathProgramCache]: Analyzing trace with hash 795900687, now seen corresponding path program 2 times [2021-06-11 06:57:08,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113990041] [2021-06-11 06:57:08,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,404 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 06:57:08,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113990041] [2021-06-11 06:57:08,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:57:08,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048837619] [2021-06-11 06:57:08,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:57:08,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:57:08,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:57:08,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-11 06:57:08,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-11 06:57:08,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,452 INFO L129 PetriNetUnfolder]: 88/185 cut-off events. [2021-06-11 06:57:08,452 INFO L130 PetriNetUnfolder]: For 573/623 co-relation queries the response was YES. [2021-06-11 06:57:08,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 185 events. 88/185 cut-off events. For 573/623 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 830 event pairs, 16 based on Foata normal form. 24/186 useless extension candidates. Maximal degree in co-relation 476. Up to 88 conditions per place. [2021-06-11 06:57:08,453 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 8 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2021-06-11 06:57:08,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 133 flow [2021-06-11 06:57:08,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:57:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:57:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:57:08,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 06:57:08,454 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:57:08,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:57:08,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:57:08,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,456 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,457 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 93 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:57:08,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 133 flow [2021-06-11 06:57:08,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 125 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 06:57:08,458 INFO L241 Difference]: Finished difference. Result has 36 places, 24 transitions, 123 flow [2021-06-11 06:57:08,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2021-06-11 06:57:08,458 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2021-06-11 06:57:08,458 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,459 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 24 transitions, 123 flow [2021-06-11 06:57:08,459 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 24 transitions, 123 flow [2021-06-11 06:57:08,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 24 transitions, 123 flow [2021-06-11 06:57:08,468 INFO L129 PetriNetUnfolder]: 61/148 cut-off events. [2021-06-11 06:57:08,468 INFO L130 PetriNetUnfolder]: For 325/377 co-relation queries the response was YES. [2021-06-11 06:57:08,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 148 events. 61/148 cut-off events. For 325/377 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 709 event pairs, 19 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 424. Up to 112 conditions per place. [2021-06-11 06:57:08,470 INFO L151 LiptonReduction]: Number of co-enabled transitions 148 [2021-06-11 06:57:08,471 INFO L163 LiptonReduction]: Checked pairs total: 42 [2021-06-11 06:57:08,471 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 06:57:08,472 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 123 flow [2021-06-11 06:57:08,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:57:08,472 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash -574875707, now seen corresponding path program 1 times [2021-06-11 06:57:08,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938717216] [2021-06-11 06:57:08,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:08,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,494 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:57:08,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:08,500 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 06:57:08,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938717216] [2021-06-11 06:57:08,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:57:08,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969435753] [2021-06-11 06:57:08,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:57:08,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:57:08,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:57:08,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 118 [2021-06-11 06:57:08,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 118 [2021-06-11 06:57:08,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,536 INFO L129 PetriNetUnfolder]: 68/195 cut-off events. [2021-06-11 06:57:08,536 INFO L130 PetriNetUnfolder]: For 663/782 co-relation queries the response was YES. [2021-06-11 06:57:08,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 195 events. 68/195 cut-off events. For 663/782 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1094 event pairs, 17 based on Foata normal form. 18/189 useless extension candidates. Maximal degree in co-relation 577. Up to 137 conditions per place. [2021-06-11 06:57:08,538 INFO L132 encePairwiseOnDemand]: 111/118 looper letters, 9 selfloop transitions, 10 changer transitions 0/32 dead transitions. [2021-06-11 06:57:08,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 208 flow [2021-06-11 06:57:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:57:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:57:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 447 transitions. [2021-06-11 06:57:08,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7576271186440678 [2021-06-11 06:57:08,539 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 447 transitions. [2021-06-11 06:57:08,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 447 transitions. [2021-06-11 06:57:08,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 447 transitions. [2021-06-11 06:57:08,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,541 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,541 INFO L185 Difference]: Start difference. First operand has 36 places, 24 transitions, 123 flow. Second operand 5 states and 447 transitions. [2021-06-11 06:57:08,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 208 flow [2021-06-11 06:57:08,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:57:08,543 INFO L241 Difference]: Finished difference. Result has 41 places, 30 transitions, 194 flow [2021-06-11 06:57:08,543 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2021-06-11 06:57:08,543 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2021-06-11 06:57:08,543 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,543 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 30 transitions, 194 flow [2021-06-11 06:57:08,544 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 30 transitions, 194 flow [2021-06-11 06:57:08,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 194 flow [2021-06-11 06:57:08,553 INFO L129 PetriNetUnfolder]: 63/182 cut-off events. [2021-06-11 06:57:08,554 INFO L130 PetriNetUnfolder]: For 313/354 co-relation queries the response was YES. [2021-06-11 06:57:08,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 182 events. 63/182 cut-off events. For 313/354 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1047 event pairs, 17 based on Foata normal form. 7/164 useless extension candidates. Maximal degree in co-relation 528. Up to 130 conditions per place. [2021-06-11 06:57:08,555 INFO L151 LiptonReduction]: Number of co-enabled transitions 188 [2021-06-11 06:57:08,557 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:57:08,557 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 06:57:08,558 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 194 flow [2021-06-11 06:57:08,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:57:08,558 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,559 INFO L82 PathProgramCache]: Analyzing trace with hash -701558528, now seen corresponding path program 1 times [2021-06-11 06:57:08,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973295557] [2021-06-11 06:57:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,595 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:57:08,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:57:08,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,600 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 06:57:08,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973295557] [2021-06-11 06:57:08,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:57:08,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342946041] [2021-06-11 06:57:08,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:57:08,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:57:08,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:57:08,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-11 06:57:08,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 06:57:08,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-11 06:57:08,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,641 INFO L129 PetriNetUnfolder]: 71/202 cut-off events. [2021-06-11 06:57:08,642 INFO L130 PetriNetUnfolder]: For 589/829 co-relation queries the response was YES. [2021-06-11 06:57:08,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 202 events. 71/202 cut-off events. For 589/829 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1150 event pairs, 0 based on Foata normal form. 48/220 useless extension candidates. Maximal degree in co-relation 676. Up to 144 conditions per place. [2021-06-11 06:57:08,643 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 9 selfloop transitions, 8 changer transitions 1/37 dead transitions. [2021-06-11 06:57:08,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 256 flow [2021-06-11 06:57:08,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:57:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:57:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2021-06-11 06:57:08,644 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7864406779661017 [2021-06-11 06:57:08,644 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2021-06-11 06:57:08,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2021-06-11 06:57:08,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2021-06-11 06:57:08,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,646 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,646 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 194 flow. Second operand 5 states and 464 transitions. [2021-06-11 06:57:08,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 256 flow [2021-06-11 06:57:08,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:57:08,648 INFO L241 Difference]: Finished difference. Result has 47 places, 33 transitions, 238 flow [2021-06-11 06:57:08,648 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=47, PETRI_TRANSITIONS=33} [2021-06-11 06:57:08,648 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 21 predicate places. [2021-06-11 06:57:08,648 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 33 transitions, 238 flow [2021-06-11 06:57:08,649 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 33 transitions, 238 flow [2021-06-11 06:57:08,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 33 transitions, 238 flow [2021-06-11 06:57:08,659 INFO L129 PetriNetUnfolder]: 61/185 cut-off events. [2021-06-11 06:57:08,659 INFO L130 PetriNetUnfolder]: For 554/675 co-relation queries the response was YES. [2021-06-11 06:57:08,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 185 events. 61/185 cut-off events. For 554/675 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1117 event pairs, 1 based on Foata normal form. 13/172 useless extension candidates. Maximal degree in co-relation 709. Up to 133 conditions per place. [2021-06-11 06:57:08,661 INFO L151 LiptonReduction]: Number of co-enabled transitions 190 [2021-06-11 06:57:08,662 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:57:08,662 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 06:57:08,663 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 33 transitions, 238 flow [2021-06-11 06:57:08,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 06:57:08,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:57:08,663 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,664 INFO L82 PathProgramCache]: Analyzing trace with hash 636020509, now seen corresponding path program 1 times [2021-06-11 06:57:08,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113399919] [2021-06-11 06:57:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,688 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:57:08,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:57:08,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,695 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 06:57:08,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113399919] [2021-06-11 06:57:08,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:57:08,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013845917] [2021-06-11 06:57:08,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:57:08,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:57:08,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:57:08,696 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-11 06:57:08,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 33 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 06:57:08,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-11 06:57:08,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,745 INFO L129 PetriNetUnfolder]: 64/189 cut-off events. [2021-06-11 06:57:08,745 INFO L130 PetriNetUnfolder]: For 911/1308 co-relation queries the response was YES. [2021-06-11 06:57:08,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 189 events. 64/189 cut-off events. For 911/1308 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1094 event pairs, 0 based on Foata normal form. 61/220 useless extension candidates. Maximal degree in co-relation 854. Up to 134 conditions per place. [2021-06-11 06:57:08,746 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 1 selfloop transitions, 11 changer transitions 12/34 dead transitions. [2021-06-11 06:57:08,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 275 flow [2021-06-11 06:57:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 06:57:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 06:57:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2021-06-11 06:57:08,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7782485875706214 [2021-06-11 06:57:08,748 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 551 transitions. [2021-06-11 06:57:08,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 551 transitions. [2021-06-11 06:57:08,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 551 transitions. [2021-06-11 06:57:08,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 06:57:08,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 118.0) internal successors, (826), 7 states have internal predecessors, (826), 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 06:57:08,750 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 118.0) internal successors, (826), 7 states have internal predecessors, (826), 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 06:57:08,750 INFO L185 Difference]: Start difference. First operand has 47 places, 33 transitions, 238 flow. Second operand 6 states and 551 transitions. [2021-06-11 06:57:08,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 275 flow [2021-06-11 06:57:08,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 34 transitions, 262 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-06-11 06:57:08,752 INFO L241 Difference]: Finished difference. Result has 52 places, 22 transitions, 183 flow [2021-06-11 06:57:08,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=52, PETRI_TRANSITIONS=22} [2021-06-11 06:57:08,752 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 26 predicate places. [2021-06-11 06:57:08,752 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 22 transitions, 183 flow [2021-06-11 06:57:08,752 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 22 transitions, 183 flow [2021-06-11 06:57:08,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 22 transitions, 183 flow [2021-06-11 06:57:08,755 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-06-11 06:57:08,755 INFO L130 PetriNetUnfolder]: For 107/109 co-relation queries the response was YES. [2021-06-11 06:57:08,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 29 events. 6/29 cut-off events. For 107/109 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 113. Up to 13 conditions per place. [2021-06-11 06:57:08,755 INFO L151 LiptonReduction]: Number of co-enabled transitions 52 [2021-06-11 06:57:08,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:08,777 INFO L163 LiptonReduction]: Checked pairs total: 4 [2021-06-11 06:57:08,777 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 06:57:08,777 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 06:57:08,778 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 21 transitions, 181 flow [2021-06-11 06:57:08,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 06:57:08,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:57:08,778 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:57:08,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:57:08,778 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:57:08,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:57:08,779 INFO L82 PathProgramCache]: Analyzing trace with hash -934908083, now seen corresponding path program 1 times [2021-06-11 06:57:08,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:57:08,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153981076] [2021-06-11 06:57:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:57:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:57:08,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:57:08,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:57:08,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:57:08,806 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:57:08,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:57:08,813 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 06:57:08,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153981076] [2021-06-11 06:57:08,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:57:08,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:57:08,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810663772] [2021-06-11 06:57:08,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:57:08,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:57:08,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:57:08,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:57:08,816 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 119 [2021-06-11 06:57:08,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 21 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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 06:57:08,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:57:08,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 119 [2021-06-11 06:57:08,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:57:08,857 INFO L129 PetriNetUnfolder]: 6/27 cut-off events. [2021-06-11 06:57:08,857 INFO L130 PetriNetUnfolder]: For 130/135 co-relation queries the response was YES. [2021-06-11 06:57:08,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 27 events. 6/27 cut-off events. For 130/135 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 4/30 useless extension candidates. Maximal degree in co-relation 106. Up to 12 conditions per place. [2021-06-11 06:57:08,857 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2021-06-11 06:57:08,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 21 transitions, 179 flow [2021-06-11 06:57:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 06:57:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 06:57:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2021-06-11 06:57:08,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7324929971988795 [2021-06-11 06:57:08,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2021-06-11 06:57:08,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2021-06-11 06:57:08,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:57:08,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2021-06-11 06:57:08,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:57:08,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 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 06:57:08,861 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 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 06:57:08,861 INFO L185 Difference]: Start difference. First operand has 50 places, 21 transitions, 181 flow. Second operand 6 states and 523 transitions. [2021-06-11 06:57:08,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 21 transitions, 179 flow [2021-06-11 06:57:08,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 85 flow, removed 9 selfloop flow, removed 23 redundant places. [2021-06-11 06:57:08,862 INFO L241 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2021-06-11 06:57:08,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=6, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2021-06-11 06:57:08,862 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2021-06-11 06:57:08,862 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:57:08,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 0 transitions, 0 flow [2021-06-11 06:57:08,862 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 0 transitions, 0 flow [2021-06-11 06:57:08,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:57:08,862 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:57:08,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:57:08,863 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 06:57:08,863 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:57:08,863 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:57:08,863 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:57:08,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:57:08,864 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:57:08,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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 06:57:08,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:57:08,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:57:08 BasicIcfg [2021-06-11 06:57:08,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:57:08,869 INFO L168 Benchmark]: Toolchain (without parser) took 3787.57 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 327.3 MB in the beginning and 411.3 MB in the end (delta: -84.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:57:08,869 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 364.9 MB. Free memory was 345.3 MB in the beginning and 345.2 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:57:08,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.43 ms. Allocated memory is still 364.9 MB. Free memory was 327.0 MB in the beginning and 325.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-11 06:57:08,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.84 ms. Allocated memory is still 364.9 MB. Free memory was 325.5 MB in the beginning and 324.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:57:08,870 INFO L168 Benchmark]: Boogie Preprocessor took 13.45 ms. Allocated memory is still 364.9 MB. Free memory was 324.4 MB in the beginning and 322.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:57:08,870 INFO L168 Benchmark]: RCFGBuilder took 298.72 ms. Allocated memory is still 364.9 MB. Free memory was 322.3 MB in the beginning and 299.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:57:08,870 INFO L168 Benchmark]: TraceAbstraction took 3071.36 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 299.3 MB in the beginning and 411.3 MB in the end (delta: -112.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:57:08,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 364.9 MB. Free memory was 345.3 MB in the beginning and 345.2 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 367.43 ms. Allocated memory is still 364.9 MB. Free memory was 327.0 MB in the beginning and 325.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 30.84 ms. Allocated memory is still 364.9 MB. Free memory was 325.5 MB in the beginning and 324.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.45 ms. Allocated memory is still 364.9 MB. Free memory was 324.4 MB in the beginning and 322.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 298.72 ms. Allocated memory is still 364.9 MB. Free memory was 322.3 MB in the beginning and 299.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3071.36 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 299.3 MB in the beginning and 411.3 MB in the end (delta: -112.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2065.1ms, 67 PlacesBefore, 26 PlacesAfterwards, 58 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1211 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 932, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 568, positive: 546, positive conditional: 0, positive unconditional: 546, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 568, positive: 546, positive conditional: 0, positive unconditional: 546, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 568, positive: 536, positive conditional: 0, positive unconditional: 536, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 932, positive: 326, positive conditional: 0, positive unconditional: 326, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 568, unknown conditional: 0, unknown unconditional: 568] , Statistics on independence cache: Total cache size (in pairs): 942, Positive cache size: 920, Positive conditional cache size: 0, Positive unconditional cache size: 920, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.1ms, 26 PlacesBefore, 26 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 945, Positive cache size: 920, Positive conditional cache size: 0, Positive unconditional cache size: 920, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9ms, 28 PlacesBefore, 28 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 50 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 949, Positive cache size: 924, Positive conditional cache size: 0, Positive unconditional cache size: 924, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9ms, 33 PlacesBefore, 33 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 0, positive unconditional: 20, 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: 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: 24, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 949, Positive cache size: 924, Positive conditional cache size: 0, Positive unconditional cache size: 924, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1ms, 36 PlacesBefore, 36 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 36, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 950, Positive cache size: 925, Positive conditional cache size: 0, Positive unconditional cache size: 925, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5ms, 41 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 188 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): 950, Positive cache size: 925, Positive conditional cache size: 0, Positive unconditional cache size: 925, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7ms, 47 PlacesBefore, 47 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 190 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): 950, Positive cache size: 925, Positive conditional cache size: 0, Positive unconditional cache size: 925, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 52 PlacesBefore, 50 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 991, Positive cache size: 966, Positive conditional cache size: 0, Positive unconditional cache size: 966, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 31 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): 991, Positive cache size: 966, Positive conditional cache size: 0, Positive unconditional cache size: 966, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3010.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 338.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2119.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 23 SDslu, 24 SDs, 0 SdLazy, 84 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 115.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=6, InterpolantAutomatonStates: 37, 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: 13.0ms SsaConstructionTime, 103.9ms SatisfiabilityAnalysisTime, 226.7ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...