/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:03:03,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:03:03,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:03:03,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:03:03,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:03:03,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:03:03,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:03:03,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:03:03,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:03:03,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:03:03,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:03:03,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:03:03,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:03:03,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:03:03,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:03:03,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:03:03,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:03:03,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:03:03,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:03:03,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:03:03,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:03:03,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:03:03,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:03:03,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:03:03,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 11:03:03,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 11:03:03,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 11:03:03,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 11:03:03,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 11:03:03,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 11:03:03,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:03:03,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:03:03,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:03:03,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:03:03,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:03:03,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:03:03,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:03:03,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:03:03,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:03:03,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:03:03,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:03:03,379 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-VariableLbe.epf [2021-03-24 11:03:03,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:03:03,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:03:03,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:03:03,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:03:03,394 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:03:03,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:03:03,395 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:03:03,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:03:03,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:03:03,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:03:03,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:03:03,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:03:03,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:03:03,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:03:03,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:03:03,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:03:03,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:03:03,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:03:03,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:03:03,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:03:03,673 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:03:03,675 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:03:03,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-03-24 11:03:03,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1379a90dd/f35ba0aa784649528e8847b4d0d50240/FLAG5835b3de3 [2021-03-24 11:03:04,158 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:03:04,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-03-24 11:03:04,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1379a90dd/f35ba0aa784649528e8847b4d0d50240/FLAG5835b3de3 [2021-03-24 11:03:04,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1379a90dd/f35ba0aa784649528e8847b4d0d50240 [2021-03-24 11:03:04,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:03:04,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:03:04,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:03:04,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:03:04,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:03:04,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bff4802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04, skipping insertion in model container [2021-03-24 11:03:04,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:03:04,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:03:04,354 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i[949,962] [2021-03-24 11:03:04,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:03:04,494 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:03:04,504 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i[949,962] [2021-03-24 11:03:04,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:03:04,593 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:03:04,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04 WrapperNode [2021-03-24 11:03:04,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:03:04,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:03:04,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:03:04,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:03:04,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:03:04,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:03:04,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:03:04,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:03:04,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... [2021-03-24 11:03:04,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:03:04,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:03:04,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:03:04,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:03:04,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:03:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:03:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 11:03:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:03:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:03:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 11:03:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 11:03:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 11:03:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 11:03:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 11:03:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 11:03:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:03:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 11:03:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:03:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:03:04,737 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:03:05,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:03:05,010 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 11:03:05,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:03:05 BoogieIcfgContainer [2021-03-24 11:03:05,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:03:05,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:03:05,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:03:05,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:03:05,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:03:04" (1/3) ... [2021-03-24 11:03:05,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136501e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:03:05, skipping insertion in model container [2021-03-24 11:03:05,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:03:04" (2/3) ... [2021-03-24 11:03:05,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136501e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:03:05, skipping insertion in model container [2021-03-24 11:03:05,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:03:05" (3/3) ... [2021-03-24 11:03:05,016 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2021-03-24 11:03:05,020 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:03:05,022 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 11:03:05,023 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,042 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,046 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,046 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:03:05,053 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 11:03:05,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-24 11:03:05,078 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:03:05,078 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:03:05,078 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:03:05,078 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:03:05,078 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:03:05,078 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:03:05,078 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:03:05,078 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:03:05,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-24 11:03:05,107 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-24 11:03:05,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:03:05,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-24 11:03:05,110 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-24 11:03:05,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-24 11:03:05,114 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:03:05,120 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-24 11:03:05,122 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-24 11:03:05,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-24 11:03:05,133 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-24 11:03:05,133 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:03:05,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-24 11:03:05,135 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-24 11:03:06,353 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-24 11:03:06,354 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-24 11:03:06,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1242 [2021-03-24 11:03:06,361 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-24 11:03:06,361 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:03:06,361 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:06,362 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:06,362 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:06,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:06,366 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-24 11:03:06,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:06,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156040301] [2021-03-24 11:03:06,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:06,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:06,515 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:03:06,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:03:06,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:06,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156040301] [2021-03-24 11:03:06,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:06,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:03:06,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394691800] [2021-03-24 11:03:06,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:03:06,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:06,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:03:06,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:03:06,544 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:03:06,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:06,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:03:06,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:06,601 INFO L129 PetriNetUnfolder]: 113/281 cut-off events. [2021-03-24 11:03:06,601 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:03:06,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 281 events. 113/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1551 event pairs, 33 based on Foata normal form. 25/294 useless extension candidates. Maximal degree in co-relation 488. Up to 103 conditions per place. [2021-03-24 11:03:06,606 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 9 selfloop transitions, 6 changer transitions 11/38 dead transitions. [2021-03-24 11:03:06,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 137 flow [2021-03-24 11:03:06,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:03:06,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:03:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2021-03-24 11:03:06,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7637931034482759 [2021-03-24 11:03:06,621 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2021-03-24 11:03:06,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2021-03-24 11:03:06,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:06,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2021-03-24 11:03:06,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,636 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,637 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 5 states and 443 transitions. [2021-03-24 11:03:06,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 137 flow [2021-03-24 11:03:06,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 11:03:06,640 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 108 flow [2021-03-24 11:03:06,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-03-24 11:03:06,642 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-24 11:03:06,642 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 108 flow [2021-03-24 11:03:06,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:06,643 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:06,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:03:06,643 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:06,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1038676965, now seen corresponding path program 1 times [2021-03-24 11:03:06,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:06,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281108538] [2021-03-24 11:03:06,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:06,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:06,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:06,739 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:03:06,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:03:06,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:06,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281108538] [2021-03-24 11:03:06,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:06,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:03:06,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400865744] [2021-03-24 11:03:06,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:03:06,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:06,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:03:06,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:03:06,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:03:06,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:06,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:03:06,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:06,835 INFO L129 PetriNetUnfolder]: 67/202 cut-off events. [2021-03-24 11:03:06,835 INFO L130 PetriNetUnfolder]: For 181/278 co-relation queries the response was YES. [2021-03-24 11:03:06,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 202 events. 67/202 cut-off events. For 181/278 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1028 event pairs, 6 based on Foata normal form. 23/219 useless extension candidates. Maximal degree in co-relation 604. Up to 90 conditions per place. [2021-03-24 11:03:06,839 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 12 selfloop transitions, 8 changer transitions 15/47 dead transitions. [2021-03-24 11:03:06,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 302 flow [2021-03-24 11:03:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:03:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:03:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 614 transitions. [2021-03-24 11:03:06,841 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7561576354679803 [2021-03-24 11:03:06,841 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 614 transitions. [2021-03-24 11:03:06,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 614 transitions. [2021-03-24 11:03:06,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:06,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 614 transitions. [2021-03-24 11:03:06,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,845 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,845 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 108 flow. Second operand 7 states and 614 transitions. [2021-03-24 11:03:06,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 302 flow [2021-03-24 11:03:06,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 266 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-24 11:03:06,848 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 158 flow [2021-03-24 11:03:06,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=158, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-03-24 11:03:06,849 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-24 11:03:06,849 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 29 transitions, 158 flow [2021-03-24 11:03:06,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:06,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:06,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:03:06,850 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:06,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:06,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2134267119, now seen corresponding path program 1 times [2021-03-24 11:03:06,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:06,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370221487] [2021-03-24 11:03:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:06,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:06,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:06,919 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:03:06,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:03:06,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:06,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:06,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370221487] [2021-03-24 11:03:06,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:06,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:03:06,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054618196] [2021-03-24 11:03:06,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:03:06,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:06,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:03:06,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:03:06,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:03:06,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 29 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:06,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:06,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:03:06,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:06,994 INFO L129 PetriNetUnfolder]: 41/142 cut-off events. [2021-03-24 11:03:06,994 INFO L130 PetriNetUnfolder]: For 398/554 co-relation queries the response was YES. [2021-03-24 11:03:06,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 142 events. 41/142 cut-off events. For 398/554 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 650 event pairs, 8 based on Foata normal form. 21/159 useless extension candidates. Maximal degree in co-relation 489. Up to 64 conditions per place. [2021-03-24 11:03:06,996 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 12 selfloop transitions, 10 changer transitions 11/45 dead transitions. [2021-03-24 11:03:06,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 340 flow [2021-03-24 11:03:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:03:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:03:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 609 transitions. [2021-03-24 11:03:06,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-24 11:03:06,998 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 609 transitions. [2021-03-24 11:03:07,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 609 transitions. [2021-03-24 11:03:07,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 609 transitions. [2021-03-24 11:03:07,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,006 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,006 INFO L185 Difference]: Start difference. First operand has 44 places, 29 transitions, 158 flow. Second operand 7 states and 609 transitions. [2021-03-24 11:03:07,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 340 flow [2021-03-24 11:03:07,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 321 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-24 11:03:07,011 INFO L241 Difference]: Finished difference. Result has 51 places, 31 transitions, 219 flow [2021-03-24 11:03:07,011 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=51, PETRI_TRANSITIONS=31} [2021-03-24 11:03:07,011 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2021-03-24 11:03:07,012 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 31 transitions, 219 flow [2021-03-24 11:03:07,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,012 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:03:07,012 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2134296910, now seen corresponding path program 1 times [2021-03-24 11:03:07,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524473109] [2021-03-24 11:03:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,072 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:03:07,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:03:07,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524473109] [2021-03-24 11:03:07,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:03:07,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222598289] [2021-03-24 11:03:07,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:03:07,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:03:07,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:03:07,085 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:03:07,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 31 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:03:07,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,136 INFO L129 PetriNetUnfolder]: 29/113 cut-off events. [2021-03-24 11:03:07,137 INFO L130 PetriNetUnfolder]: For 400/596 co-relation queries the response was YES. [2021-03-24 11:03:07,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 113 events. 29/113 cut-off events. For 400/596 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 459 event pairs, 3 based on Foata normal form. 16/128 useless extension candidates. Maximal degree in co-relation 468. Up to 46 conditions per place. [2021-03-24 11:03:07,139 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 15 selfloop transitions, 12 changer transitions 6/45 dead transitions. [2021-03-24 11:03:07,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 45 transitions, 419 flow [2021-03-24 11:03:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:03:07,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:03:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 607 transitions. [2021-03-24 11:03:07,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7475369458128078 [2021-03-24 11:03:07,141 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 607 transitions. [2021-03-24 11:03:07,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 607 transitions. [2021-03-24 11:03:07,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 607 transitions. [2021-03-24 11:03:07,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,144 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,144 INFO L185 Difference]: Start difference. First operand has 51 places, 31 transitions, 219 flow. Second operand 7 states and 607 transitions. [2021-03-24 11:03:07,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 45 transitions, 419 flow [2021-03-24 11:03:07,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 385 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-24 11:03:07,147 INFO L241 Difference]: Finished difference. Result has 55 places, 35 transitions, 306 flow [2021-03-24 11:03:07,147 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=306, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2021-03-24 11:03:07,147 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 24 predicate places. [2021-03-24 11:03:07,147 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 306 flow [2021-03-24 11:03:07,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,148 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:03:07,148 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1736929795, now seen corresponding path program 1 times [2021-03-24 11:03:07,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387215381] [2021-03-24 11:03:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:07,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,211 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:03:07,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:03:07,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387215381] [2021-03-24 11:03:07,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:03:07,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838952528] [2021-03-24 11:03:07,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:03:07,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:03:07,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:03:07,226 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 116 [2021-03-24 11:03:07,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 116 [2021-03-24 11:03:07,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,269 INFO L129 PetriNetUnfolder]: 45/148 cut-off events. [2021-03-24 11:03:07,269 INFO L130 PetriNetUnfolder]: For 945/1231 co-relation queries the response was YES. [2021-03-24 11:03:07,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 148 events. 45/148 cut-off events. For 945/1231 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 639 event pairs, 1 based on Foata normal form. 11/157 useless extension candidates. Maximal degree in co-relation 691. Up to 53 conditions per place. [2021-03-24 11:03:07,270 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 16 selfloop transitions, 10 changer transitions 26/63 dead transitions. [2021-03-24 11:03:07,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 735 flow [2021-03-24 11:03:07,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:03:07,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:03:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 596 transitions. [2021-03-24 11:03:07,272 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7339901477832512 [2021-03-24 11:03:07,272 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 596 transitions. [2021-03-24 11:03:07,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 596 transitions. [2021-03-24 11:03:07,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 596 transitions. [2021-03-24 11:03:07,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.14285714285714) internal successors, (596), 7 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,291 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,292 INFO L185 Difference]: Start difference. First operand has 55 places, 35 transitions, 306 flow. Second operand 7 states and 596 transitions. [2021-03-24 11:03:07,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 735 flow [2021-03-24 11:03:07,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 707 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-24 11:03:07,295 INFO L241 Difference]: Finished difference. Result has 56 places, 31 transitions, 268 flow [2021-03-24 11:03:07,295 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=56, PETRI_TRANSITIONS=31} [2021-03-24 11:03:07,295 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 25 predicate places. [2021-03-24 11:03:07,295 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 31 transitions, 268 flow [2021-03-24 11:03:07,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,295 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:03:07,296 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2066078221, now seen corresponding path program 1 times [2021-03-24 11:03:07,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415966952] [2021-03-24 11:03:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415966952] [2021-03-24 11:03:07,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:03:07,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591851521] [2021-03-24 11:03:07,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:03:07,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:03:07,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:03:07,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 116 [2021-03-24 11:03:07,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 31 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 116 [2021-03-24 11:03:07,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,383 INFO L129 PetriNetUnfolder]: 58/156 cut-off events. [2021-03-24 11:03:07,383 INFO L130 PetriNetUnfolder]: For 653/687 co-relation queries the response was YES. [2021-03-24 11:03:07,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 156 events. 58/156 cut-off events. For 653/687 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 675 event pairs, 21 based on Foata normal form. 16/163 useless extension candidates. Maximal degree in co-relation 499. Up to 85 conditions per place. [2021-03-24 11:03:07,385 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 5 selfloop transitions, 6 changer transitions 5/41 dead transitions. [2021-03-24 11:03:07,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 41 transitions, 320 flow [2021-03-24 11:03:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:03:07,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:03:07,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2021-03-24 11:03:07,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7724137931034483 [2021-03-24 11:03:07,387 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2021-03-24 11:03:07,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2021-03-24 11:03:07,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2021-03-24 11:03:07,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,392 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,392 INFO L185 Difference]: Start difference. First operand has 56 places, 31 transitions, 268 flow. Second operand 5 states and 448 transitions. [2021-03-24 11:03:07,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 41 transitions, 320 flow [2021-03-24 11:03:07,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 41 transitions, 286 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-24 11:03:07,395 INFO L241 Difference]: Finished difference. Result has 54 places, 36 transitions, 280 flow [2021-03-24 11:03:07,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=54, PETRI_TRANSITIONS=36} [2021-03-24 11:03:07,396 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 23 predicate places. [2021-03-24 11:03:07,396 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 36 transitions, 280 flow [2021-03-24 11:03:07,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,396 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,396 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:03:07,396 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,397 INFO L82 PathProgramCache]: Analyzing trace with hash -376145514, now seen corresponding path program 1 times [2021-03-24 11:03:07,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263930458] [2021-03-24 11:03:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263930458] [2021-03-24 11:03:07,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:03:07,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587137726] [2021-03-24 11:03:07,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:03:07,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:03:07,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:03:07,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 116 [2021-03-24 11:03:07,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 36 transitions, 280 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 116 [2021-03-24 11:03:07,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,489 INFO L129 PetriNetUnfolder]: 38/124 cut-off events. [2021-03-24 11:03:07,489 INFO L130 PetriNetUnfolder]: For 544/683 co-relation queries the response was YES. [2021-03-24 11:03:07,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 124 events. 38/124 cut-off events. For 544/683 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 510 event pairs, 3 based on Foata normal form. 45/163 useless extension candidates. Maximal degree in co-relation 477. Up to 63 conditions per place. [2021-03-24 11:03:07,490 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 5 selfloop transitions, 10 changer transitions 6/46 dead transitions. [2021-03-24 11:03:07,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 46 transitions, 374 flow [2021-03-24 11:03:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:03:07,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:03:07,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 625 transitions. [2021-03-24 11:03:07,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7697044334975369 [2021-03-24 11:03:07,492 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 625 transitions. [2021-03-24 11:03:07,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 625 transitions. [2021-03-24 11:03:07,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 625 transitions. [2021-03-24 11:03:07,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,495 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,495 INFO L185 Difference]: Start difference. First operand has 54 places, 36 transitions, 280 flow. Second operand 7 states and 625 transitions. [2021-03-24 11:03:07,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 46 transitions, 374 flow [2021-03-24 11:03:07,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 46 transitions, 370 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-24 11:03:07,497 INFO L241 Difference]: Finished difference. Result has 62 places, 40 transitions, 343 flow [2021-03-24 11:03:07,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=343, PETRI_PLACES=62, PETRI_TRANSITIONS=40} [2021-03-24 11:03:07,497 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 31 predicate places. [2021-03-24 11:03:07,497 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 40 transitions, 343 flow [2021-03-24 11:03:07,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,498 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 11:03:07,498 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1080169481, now seen corresponding path program 1 times [2021-03-24 11:03:07,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400339401] [2021-03-24 11:03:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400339401] [2021-03-24 11:03:07,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:03:07,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530885202] [2021-03-24 11:03:07,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:03:07,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:03:07,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:03:07,566 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 116 [2021-03-24 11:03:07,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 40 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 116 [2021-03-24 11:03:07,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,616 INFO L129 PetriNetUnfolder]: 21/85 cut-off events. [2021-03-24 11:03:07,616 INFO L130 PetriNetUnfolder]: For 624/891 co-relation queries the response was YES. [2021-03-24 11:03:07,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 85 events. 21/85 cut-off events. For 624/891 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 290 event pairs, 0 based on Foata normal form. 62/145 useless extension candidates. Maximal degree in co-relation 405. Up to 40 conditions per place. [2021-03-24 11:03:07,618 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 2 selfloop transitions, 13 changer transitions 8/44 dead transitions. [2021-03-24 11:03:07,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 44 transitions, 415 flow [2021-03-24 11:03:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 11:03:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 11:03:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 795 transitions. [2021-03-24 11:03:07,623 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7614942528735632 [2021-03-24 11:03:07,623 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 795 transitions. [2021-03-24 11:03:07,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 795 transitions. [2021-03-24 11:03:07,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 795 transitions. [2021-03-24 11:03:07,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.33333333333333) internal successors, (795), 9 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,631 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,631 INFO L185 Difference]: Start difference. First operand has 62 places, 40 transitions, 343 flow. Second operand 9 states and 795 transitions. [2021-03-24 11:03:07,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 44 transitions, 415 flow [2021-03-24 11:03:07,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 44 transitions, 387 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-24 11:03:07,636 INFO L241 Difference]: Finished difference. Result has 67 places, 36 transitions, 313 flow [2021-03-24 11:03:07,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=313, PETRI_PLACES=67, PETRI_TRANSITIONS=36} [2021-03-24 11:03:07,637 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 36 predicate places. [2021-03-24 11:03:07,637 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 36 transitions, 313 flow [2021-03-24 11:03:07,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,637 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 11:03:07,638 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1176687318, now seen corresponding path program 1 times [2021-03-24 11:03:07,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373604607] [2021-03-24 11:03:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:07,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373604607] [2021-03-24 11:03:07,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:03:07,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285044206] [2021-03-24 11:03:07,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:03:07,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:03:07,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:03:07,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 116 [2021-03-24 11:03:07,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 36 transitions, 313 flow. Second operand has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 116 [2021-03-24 11:03:07,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,722 INFO L129 PetriNetUnfolder]: 13/69 cut-off events. [2021-03-24 11:03:07,723 INFO L130 PetriNetUnfolder]: For 352/375 co-relation queries the response was YES. [2021-03-24 11:03:07,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 69 events. 13/69 cut-off events. For 352/375 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 200 event pairs, 0 based on Foata normal form. 6/73 useless extension candidates. Maximal degree in co-relation 308. Up to 30 conditions per place. [2021-03-24 11:03:07,724 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 4 selfloop transitions, 4 changer transitions 12/39 dead transitions. [2021-03-24 11:03:07,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 39 transitions, 392 flow [2021-03-24 11:03:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:03:07,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:03:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 454 transitions. [2021-03-24 11:03:07,725 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7827586206896552 [2021-03-24 11:03:07,726 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 454 transitions. [2021-03-24 11:03:07,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 454 transitions. [2021-03-24 11:03:07,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 454 transitions. [2021-03-24 11:03:07,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,730 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,730 INFO L185 Difference]: Start difference. First operand has 67 places, 36 transitions, 313 flow. Second operand 5 states and 454 transitions. [2021-03-24 11:03:07,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 39 transitions, 392 flow [2021-03-24 11:03:07,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 39 transitions, 330 flow, removed 17 selfloop flow, removed 8 redundant places. [2021-03-24 11:03:07,733 INFO L241 Difference]: Finished difference. Result has 63 places, 27 transitions, 188 flow [2021-03-24 11:03:07,733 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=63, PETRI_TRANSITIONS=27} [2021-03-24 11:03:07,733 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 32 predicate places. [2021-03-24 11:03:07,733 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 27 transitions, 188 flow [2021-03-24 11:03:07,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:03:07,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:03:07,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 11:03:07,734 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:03:07,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:03:07,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1676241780, now seen corresponding path program 2 times [2021-03-24 11:03:07,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:03:07,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356165641] [2021-03-24 11:03:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:03:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:03:07,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:03:07,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,778 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:03:07,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:03:07,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:03:07,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:03:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:03:07,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356165641] [2021-03-24 11:03:07,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:03:07,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:03:07,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905272014] [2021-03-24 11:03:07,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:03:07,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:03:07,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:03:07,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:03:07,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:03:07,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 27 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:03:07,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:03:07,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:03:07,818 INFO L129 PetriNetUnfolder]: 5/29 cut-off events. [2021-03-24 11:03:07,819 INFO L130 PetriNetUnfolder]: For 79/80 co-relation queries the response was YES. [2021-03-24 11:03:07,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 29 events. 5/29 cut-off events. For 79/80 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 112. Up to 8 conditions per place. [2021-03-24 11:03:07,819 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2021-03-24 11:03:07,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 26 transitions, 200 flow [2021-03-24 11:03:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:03:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:03:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 590 transitions. [2021-03-24 11:03:07,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7266009852216748 [2021-03-24 11:03:07,821 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 590 transitions. [2021-03-24 11:03:07,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 590 transitions. [2021-03-24 11:03:07,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:03:07,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 590 transitions. [2021-03-24 11:03:07,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 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) [2021-03-24 11:03:07,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,823 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,823 INFO L185 Difference]: Start difference. First operand has 63 places, 27 transitions, 188 flow. Second operand 7 states and 590 transitions. [2021-03-24 11:03:07,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 26 transitions, 200 flow [2021-03-24 11:03:07,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 26 transitions, 130 flow, removed 8 selfloop flow, removed 19 redundant places. [2021-03-24 11:03:07,825 INFO L241 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2021-03-24 11:03:07,825 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2021-03-24 11:03:07,825 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-24 11:03:07,825 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2021-03-24 11:03:07,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:03:07,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 11:03:07,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:03:07 BasicIcfg [2021-03-24 11:03:07,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:03:07,830 INFO L168 Benchmark]: Toolchain (without parser) took 3635.26 ms. Allocated memory was 411.0 MB in the beginning and 585.1 MB in the end (delta: 174.1 MB). Free memory was 375.1 MB in the beginning and 446.1 MB in the end (delta: -71.0 MB). Peak memory consumption was 105.3 MB. Max. memory is 16.0 GB. [2021-03-24 11:03:07,831 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 411.0 MB. Free memory was 393.1 MB in the beginning and 393.1 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:03:07,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.97 ms. Allocated memory is still 411.0 MB. Free memory was 374.9 MB in the beginning and 374.7 MB in the end (delta: 118.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:03:07,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.44 ms. Allocated memory is still 411.0 MB. Free memory was 374.7 MB in the beginning and 372.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:03:07,833 INFO L168 Benchmark]: Boogie Preprocessor took 15.42 ms. Allocated memory is still 411.0 MB. Free memory was 372.6 MB in the beginning and 371.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:03:07,834 INFO L168 Benchmark]: RCFGBuilder took 359.65 ms. Allocated memory is still 411.0 MB. Free memory was 371.6 MB in the beginning and 346.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:03:07,834 INFO L168 Benchmark]: TraceAbstraction took 2815.80 ms. Allocated memory was 411.0 MB in the beginning and 585.1 MB in the end (delta: 174.1 MB). Free memory was 346.4 MB in the beginning and 446.1 MB in the end (delta: -99.6 MB). Peak memory consumption was 76.5 MB. Max. memory is 16.0 GB. [2021-03-24 11:03:07,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 411.0 MB. Free memory was 393.1 MB in the beginning and 393.1 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 401.97 ms. Allocated memory is still 411.0 MB. Free memory was 374.9 MB in the beginning and 374.7 MB in the end (delta: 118.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.44 ms. Allocated memory is still 411.0 MB. Free memory was 374.7 MB in the beginning and 372.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.42 ms. Allocated memory is still 411.0 MB. Free memory was 372.6 MB in the beginning and 371.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 359.65 ms. Allocated memory is still 411.0 MB. Free memory was 371.6 MB in the beginning and 346.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2815.80 ms. Allocated memory was 411.0 MB in the beginning and 585.1 MB in the end (delta: 174.1 MB). Free memory was 346.4 MB in the beginning and 446.1 MB in the end (delta: -99.6 MB). Peak memory consumption was 76.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1231.8ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 680, positive: 633, positive conditional: 0, positive unconditional: 633, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 439, positive: 424, positive conditional: 0, positive unconditional: 424, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 439, positive: 424, positive conditional: 0, positive unconditional: 424, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 680, positive: 209, positive conditional: 0, positive unconditional: 209, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 439, unknown conditional: 0, unknown unconditional: 439] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2751.0ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 649.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1280.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 82 SDtfs, 88 SDslu, 99 SDs, 0 SdLazy, 213 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 131.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 203.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred in iteration=7, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.7ms SsaConstructionTime, 165.5ms SatisfiabilityAnalysisTime, 471.9ms InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 662 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...