/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 13:02:54,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 13:02:54,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 13:02:54,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 13:02:54,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 13:02:54,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 13:02:54,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 13:02:54,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 13:02:54,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 13:02:54,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 13:02:54,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 13:02:54,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 13:02:54,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 13:02:54,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 13:02:54,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 13:02:54,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 13:02:54,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 13:02:54,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 13:02:54,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 13:02:54,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 13:02:54,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 13:02:54,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 13:02:54,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 13:02:54,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 13:02:54,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 13:02:54,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 13:02:54,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 13:02:54,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 13:02:54,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 13:02:54,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 13:02:54,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 13:02:54,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 13:02:54,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 13:02:54,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 13:02:54,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 13:02:54,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 13:02:54,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-03-25 13:02:54,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 13:02:54,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 13:02:54,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 13:02:54,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 13:02:54,321 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 13:02:54,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 13:02:54,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 13:02:54,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 13:02:54,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 13:02:54,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 13:02:54,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 13:02:54,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 13:02:54,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 13:02:54,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 13:02:54,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 13:02:54,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 13:02:54,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 13:02:54,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 13:02:54,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 13:02:54,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 13:02:54,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 13:02:54,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 13:02:54,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 13:02:54,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 13:02:54,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 13:02:54,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 13:02:54,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 13:02:54,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 13:02:54,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 13:02:54,325 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 13:02:54,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 13:02:54,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 13:02:54,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 13:02:54,650 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 13:02:54,651 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 13:02:54,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-03-25 13:02:54,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff0554a/0b54910e14ad4d47a9acad384d40d780/FLAGa791897a4 [2021-03-25 13:02:55,197 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 13:02:55,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-03-25 13:02:55,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff0554a/0b54910e14ad4d47a9acad384d40d780/FLAGa791897a4 [2021-03-25 13:02:55,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff0554a/0b54910e14ad4d47a9acad384d40d780 [2021-03-25 13:02:55,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 13:02:55,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 13:02:55,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 13:02:55,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 13:02:55,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 13:02:55,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd0ad40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55, skipping insertion in model container [2021-03-25 13:02:55,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 13:02:55,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 13:02:55,409 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 13:02:55,542 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-atomic/szymanski.i[31505,31518] [2021-03-25 13:02:55,549 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-atomic/szymanski.i[32915,32928] [2021-03-25 13:02:55,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 13:02:55,560 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 13:02:55,571 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 13:02:55,591 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-atomic/szymanski.i[31505,31518] [2021-03-25 13:02:55,594 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-atomic/szymanski.i[32915,32928] [2021-03-25 13:02:55,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 13:02:55,662 INFO L208 MainTranslator]: Completed translation [2021-03-25 13:02:55,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55 WrapperNode [2021-03-25 13:02:55,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 13:02:55,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 13:02:55,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 13:02:55,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 13:02:55,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 13:02:55,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 13:02:55,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 13:02:55,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 13:02:55,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... [2021-03-25 13:02:55,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 13:02:55,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 13:02:55,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 13:02:55,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 13:02:55,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 13:02:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 13:02:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-25 13:02:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-25 13:02:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-25 13:02:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 13:02:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 13:02:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 13:02:55,788 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 13:02:56,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 13:02:56,132 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-25 13:02:56,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 01:02:56 BoogieIcfgContainer [2021-03-25 13:02:56,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 13:02:56,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 13:02:56,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 13:02:56,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 13:02:56,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 01:02:55" (1/3) ... [2021-03-25 13:02:56,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7613384e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 01:02:56, skipping insertion in model container [2021-03-25 13:02:56,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:55" (2/3) ... [2021-03-25 13:02:56,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7613384e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 01:02:56, skipping insertion in model container [2021-03-25 13:02:56,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 01:02:56" (3/3) ... [2021-03-25 13:02:56,139 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-03-25 13:02:56,144 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 13:02:56,147 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 13:02:56,148 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 13:02:56,168 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,176 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,176 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,176 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,176 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,176 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,176 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,190 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,190 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:56,195 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 13:02:56,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 13:02:56,231 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 13:02:56,231 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 13:02:56,231 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 13:02:56,231 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 13:02:56,231 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 13:02:56,231 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 13:02:56,231 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 13:02:56,232 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 13:02:56,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 109 transitions, 240 flow [2021-03-25 13:02:56,275 INFO L129 PetriNetUnfolder]: 21/109 cut-off events. [2021-03-25 13:02:56,275 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 13:02:56,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 109 events. 21/109 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2021-03-25 13:02:56,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 109 transitions, 240 flow [2021-03-25 13:02:56,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 97 transitions, 206 flow [2021-03-25 13:02:56,288 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:56,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 97 transitions, 206 flow [2021-03-25 13:02:56,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 97 transitions, 206 flow [2021-03-25 13:02:56,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 97 transitions, 206 flow [2021-03-25 13:02:56,343 INFO L129 PetriNetUnfolder]: 20/99 cut-off events. [2021-03-25 13:02:56,343 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 13:02:56,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 20/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 153 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2021-03-25 13:02:56,349 INFO L142 LiptonReduction]: Number of co-enabled transitions 3528 [2021-03-25 13:02:57,814 INFO L154 LiptonReduction]: Checked pairs total: 2188 [2021-03-25 13:02:57,814 INFO L156 LiptonReduction]: Total number of compositions: 60 [2021-03-25 13:02:57,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1530 [2021-03-25 13:02:57,827 INFO L129 PetriNetUnfolder]: 5/27 cut-off events. [2021-03-25 13:02:57,827 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:02:57,827 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:57,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:57,828 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:02:57,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:57,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1595151328, now seen corresponding path program 1 times [2021-03-25 13:02:57,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:57,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507562062] [2021-03-25 13:02:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:57,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:57,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:57,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:57,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:57,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507562062] [2021-03-25 13:02:57,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:57,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 13:02:57,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671872818] [2021-03-25 13:02:57,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 13:02:57,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:57,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 13:02:58,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 13:02:58,001 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 169 [2021-03-25 13:02:58,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:58,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 169 [2021-03-25 13:02:58,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:58,059 INFO L129 PetriNetUnfolder]: 22/100 cut-off events. [2021-03-25 13:02:58,059 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 13:02:58,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 100 events. 22/100 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 277 event pairs, 2 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 120. Up to 18 conditions per place. [2021-03-25 13:02:58,064 INFO L132 encePairwiseOnDemand]: 163/169 looper letters, 7 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-03-25 13:02:58,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 134 flow [2021-03-25 13:02:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 13:02:58,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 13:02:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2021-03-25 13:02:58,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.814595660749507 [2021-03-25 13:02:58,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2021-03-25 13:02:58,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2021-03-25 13:02:58,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:58,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2021-03-25 13:02:58,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,113 INFO L185 Difference]: Start difference. First operand has 44 places, 49 transitions, 110 flow. Second operand 3 states and 413 transitions. [2021-03-25 13:02:58,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 134 flow [2021-03-25 13:02:58,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 13:02:58,117 INFO L241 Difference]: Finished difference. Result has 44 places, 49 transitions, 120 flow [2021-03-25 13:02:58,119 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=44, PETRI_TRANSITIONS=49} [2021-03-25 13:02:58,127 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2021-03-25 13:02:58,127 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:58,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 49 transitions, 120 flow [2021-03-25 13:02:58,129 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 49 transitions, 120 flow [2021-03-25 13:02:58,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 49 transitions, 120 flow [2021-03-25 13:02:58,142 INFO L129 PetriNetUnfolder]: 15/82 cut-off events. [2021-03-25 13:02:58,142 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 13:02:58,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 82 events. 15/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 194 event pairs, 1 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 77. Up to 8 conditions per place. [2021-03-25 13:02:58,144 INFO L142 LiptonReduction]: Number of co-enabled transitions 992 [2021-03-25 13:02:58,537 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-25 13:02:58,785 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-25 13:02:58,871 INFO L154 LiptonReduction]: Checked pairs total: 918 [2021-03-25 13:02:58,871 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 13:02:58,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 744 [2021-03-25 13:02:58,872 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 45 transitions, 112 flow [2021-03-25 13:02:58,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,873 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:58,873 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:58,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 13:02:58,873 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:02:58,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:58,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1146238324, now seen corresponding path program 1 times [2021-03-25 13:02:58,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:58,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173859164] [2021-03-25 13:02:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:58,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:58,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:58,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 13:02:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:58,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173859164] [2021-03-25 13:02:58,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:58,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 13:02:58,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528612691] [2021-03-25 13:02:58,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 13:02:58,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:58,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 13:02:58,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 13:02:58,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 173 [2021-03-25 13:02:58,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 45 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:58,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 173 [2021-03-25 13:02:58,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:58,936 INFO L129 PetriNetUnfolder]: 16/77 cut-off events. [2021-03-25 13:02:58,936 INFO L130 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2021-03-25 13:02:58,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 77 events. 16/77 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 2 based on Foata normal form. 6/69 useless extension candidates. Maximal degree in co-relation 95. Up to 11 conditions per place. [2021-03-25 13:02:58,937 INFO L132 encePairwiseOnDemand]: 169/173 looper letters, 6 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2021-03-25 13:02:58,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 128 flow [2021-03-25 13:02:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 13:02:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 13:02:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2021-03-25 13:02:58,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7996146435452793 [2021-03-25 13:02:58,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 415 transitions. [2021-03-25 13:02:58,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 415 transitions. [2021-03-25 13:02:58,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:58,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 415 transitions. [2021-03-25 13:02:58,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,943 INFO L185 Difference]: Start difference. First operand has 40 places, 45 transitions, 112 flow. Second operand 3 states and 415 transitions. [2021-03-25 13:02:58,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 128 flow [2021-03-25 13:02:58,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 13:02:58,944 INFO L241 Difference]: Finished difference. Result has 41 places, 45 transitions, 116 flow [2021-03-25 13:02:58,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=45} [2021-03-25 13:02:58,945 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2021-03-25 13:02:58,945 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:58,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 45 transitions, 116 flow [2021-03-25 13:02:58,946 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 45 transitions, 116 flow [2021-03-25 13:02:58,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 45 transitions, 116 flow [2021-03-25 13:02:58,952 INFO L129 PetriNetUnfolder]: 17/82 cut-off events. [2021-03-25 13:02:58,952 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 13:02:58,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 82 events. 17/82 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 222 event pairs, 2 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 88. Up to 10 conditions per place. [2021-03-25 13:02:58,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 868 [2021-03-25 13:02:58,957 INFO L154 LiptonReduction]: Checked pairs total: 252 [2021-03-25 13:02:58,957 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:58,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 13:02:58,958 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 45 transitions, 116 flow [2021-03-25 13:02:58,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:58,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:58,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:58,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 13:02:58,959 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:02:58,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:58,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1514022846, now seen corresponding path program 1 times [2021-03-25 13:02:58,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:58,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929974753] [2021-03-25 13:02:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:59,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:59,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 13:02:59,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:59,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929974753] [2021-03-25 13:02:59,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:59,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:59,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757899644] [2021-03-25 13:02:59,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:02:59,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:59,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:02:59,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:02:59,060 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 173 [2021-03-25 13:02:59,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:59,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 173 [2021-03-25 13:02:59,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:59,193 INFO L129 PetriNetUnfolder]: 130/337 cut-off events. [2021-03-25 13:02:59,193 INFO L130 PetriNetUnfolder]: For 50/52 co-relation queries the response was YES. [2021-03-25 13:02:59,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 337 events. 130/337 cut-off events. For 50/52 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1589 event pairs, 41 based on Foata normal form. 6/302 useless extension candidates. Maximal degree in co-relation 546. Up to 129 conditions per place. [2021-03-25 13:02:59,197 INFO L132 encePairwiseOnDemand]: 157/173 looper letters, 26 selfloop transitions, 8 changer transitions 24/79 dead transitions. [2021-03-25 13:02:59,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 79 transitions, 307 flow [2021-03-25 13:02:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:02:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:02:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 566 transitions. [2021-03-25 13:02:59,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6543352601156069 [2021-03-25 13:02:59,200 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 566 transitions. [2021-03-25 13:02:59,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 566 transitions. [2021-03-25 13:02:59,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:59,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 566 transitions. [2021-03-25 13:02:59,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,206 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,206 INFO L185 Difference]: Start difference. First operand has 41 places, 45 transitions, 116 flow. Second operand 5 states and 566 transitions. [2021-03-25 13:02:59,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 79 transitions, 307 flow [2021-03-25 13:02:59,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 79 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 13:02:59,211 INFO L241 Difference]: Finished difference. Result has 47 places, 49 transitions, 195 flow [2021-03-25 13:02:59,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=47, PETRI_TRANSITIONS=49} [2021-03-25 13:02:59,211 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2021-03-25 13:02:59,211 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:59,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 49 transitions, 195 flow [2021-03-25 13:02:59,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 49 transitions, 195 flow [2021-03-25 13:02:59,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 49 transitions, 195 flow [2021-03-25 13:02:59,226 INFO L129 PetriNetUnfolder]: 43/160 cut-off events. [2021-03-25 13:02:59,226 INFO L130 PetriNetUnfolder]: For 55/60 co-relation queries the response was YES. [2021-03-25 13:02:59,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 160 events. 43/160 cut-off events. For 55/60 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 583 event pairs, 7 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 275. Up to 37 conditions per place. [2021-03-25 13:02:59,228 INFO L142 LiptonReduction]: Number of co-enabled transitions 766 [2021-03-25 13:02:59,242 INFO L154 LiptonReduction]: Checked pairs total: 124 [2021-03-25 13:02:59,242 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:59,242 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 13:02:59,246 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 49 transitions, 195 flow [2021-03-25 13:02:59,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:59,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:59,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 13:02:59,247 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:02:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:59,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2054120562, now seen corresponding path program 2 times [2021-03-25 13:02:59,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:59,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485350029] [2021-03-25 13:02:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:59,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:59,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:59,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:59,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485350029] [2021-03-25 13:02:59,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:59,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:59,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049469103] [2021-03-25 13:02:59,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:02:59,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:59,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:02:59,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:02:59,303 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 173 [2021-03-25 13:02:59,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 49 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:59,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 173 [2021-03-25 13:02:59,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:59,437 INFO L129 PetriNetUnfolder]: 159/416 cut-off events. [2021-03-25 13:02:59,437 INFO L130 PetriNetUnfolder]: For 329/336 co-relation queries the response was YES. [2021-03-25 13:02:59,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 416 events. 159/416 cut-off events. For 329/336 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2079 event pairs, 33 based on Foata normal form. 18/430 useless extension candidates. Maximal degree in co-relation 931. Up to 111 conditions per place. [2021-03-25 13:02:59,439 INFO L132 encePairwiseOnDemand]: 156/173 looper letters, 40 selfloop transitions, 27 changer transitions 2/90 dead transitions. [2021-03-25 13:02:59,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 90 transitions, 544 flow [2021-03-25 13:02:59,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:02:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:02:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 566 transitions. [2021-03-25 13:02:59,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6543352601156069 [2021-03-25 13:02:59,442 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 566 transitions. [2021-03-25 13:02:59,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 566 transitions. [2021-03-25 13:02:59,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:59,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 566 transitions. [2021-03-25 13:02:59,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,446 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,446 INFO L185 Difference]: Start difference. First operand has 47 places, 49 transitions, 195 flow. Second operand 5 states and 566 transitions. [2021-03-25 13:02:59,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 90 transitions, 544 flow [2021-03-25 13:02:59,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 90 transitions, 484 flow, removed 30 selfloop flow, removed 0 redundant places. [2021-03-25 13:02:59,453 INFO L241 Difference]: Finished difference. Result has 55 places, 71 transitions, 437 flow [2021-03-25 13:02:59,453 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=437, PETRI_PLACES=55, PETRI_TRANSITIONS=71} [2021-03-25 13:02:59,454 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 11 predicate places. [2021-03-25 13:02:59,454 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:59,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 71 transitions, 437 flow [2021-03-25 13:02:59,454 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 71 transitions, 437 flow [2021-03-25 13:02:59,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 71 transitions, 437 flow [2021-03-25 13:02:59,473 INFO L129 PetriNetUnfolder]: 93/279 cut-off events. [2021-03-25 13:02:59,473 INFO L130 PetriNetUnfolder]: For 336/351 co-relation queries the response was YES. [2021-03-25 13:02:59,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 279 events. 93/279 cut-off events. For 336/351 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1277 event pairs, 12 based on Foata normal form. 1/276 useless extension candidates. Maximal degree in co-relation 660. Up to 70 conditions per place. [2021-03-25 13:02:59,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 844 [2021-03-25 13:02:59,498 INFO L154 LiptonReduction]: Checked pairs total: 135 [2021-03-25 13:02:59,498 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:59,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 13:02:59,499 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 71 transitions, 437 flow [2021-03-25 13:02:59,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:59,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:59,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 13:02:59,500 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:02:59,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:59,501 INFO L82 PathProgramCache]: Analyzing trace with hash -917230464, now seen corresponding path program 3 times [2021-03-25 13:02:59,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:59,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780958854] [2021-03-25 13:02:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:59,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:59,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:59,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:59,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780958854] [2021-03-25 13:02:59,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:59,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:59,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259058960] [2021-03-25 13:02:59,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:02:59,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:59,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:02:59,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:02:59,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 173 [2021-03-25 13:02:59,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 71 transitions, 437 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:59,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 173 [2021-03-25 13:02:59,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:59,679 INFO L129 PetriNetUnfolder]: 218/575 cut-off events. [2021-03-25 13:02:59,679 INFO L130 PetriNetUnfolder]: For 1128/1135 co-relation queries the response was YES. [2021-03-25 13:02:59,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 575 events. 218/575 cut-off events. For 1128/1135 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3230 event pairs, 35 based on Foata normal form. 23/591 useless extension candidates. Maximal degree in co-relation 1588. Up to 189 conditions per place. [2021-03-25 13:02:59,683 INFO L132 encePairwiseOnDemand]: 159/173 looper letters, 65 selfloop transitions, 25 changer transitions 1/112 dead transitions. [2021-03-25 13:02:59,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 112 transitions, 902 flow [2021-03-25 13:02:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:02:59,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:02:59,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 568 transitions. [2021-03-25 13:02:59,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6566473988439306 [2021-03-25 13:02:59,686 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 568 transitions. [2021-03-25 13:02:59,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 568 transitions. [2021-03-25 13:02:59,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:59,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 568 transitions. [2021-03-25 13:02:59,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,691 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,691 INFO L185 Difference]: Start difference. First operand has 55 places, 71 transitions, 437 flow. Second operand 5 states and 568 transitions. [2021-03-25 13:02:59,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 112 transitions, 902 flow [2021-03-25 13:02:59,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 112 transitions, 888 flow, removed 7 selfloop flow, removed 0 redundant places. [2021-03-25 13:02:59,700 INFO L241 Difference]: Finished difference. Result has 63 places, 92 transitions, 744 flow [2021-03-25 13:02:59,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=744, PETRI_PLACES=63, PETRI_TRANSITIONS=92} [2021-03-25 13:02:59,701 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 19 predicate places. [2021-03-25 13:02:59,701 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:59,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 92 transitions, 744 flow [2021-03-25 13:02:59,701 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 92 transitions, 744 flow [2021-03-25 13:02:59,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 92 transitions, 744 flow [2021-03-25 13:02:59,732 INFO L129 PetriNetUnfolder]: 150/444 cut-off events. [2021-03-25 13:02:59,732 INFO L130 PetriNetUnfolder]: For 933/968 co-relation queries the response was YES. [2021-03-25 13:02:59,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 444 events. 150/444 cut-off events. For 933/968 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2396 event pairs, 6 based on Foata normal form. 3/442 useless extension candidates. Maximal degree in co-relation 1227. Up to 112 conditions per place. [2021-03-25 13:02:59,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 966 [2021-03-25 13:02:59,818 INFO L154 LiptonReduction]: Checked pairs total: 540 [2021-03-25 13:02:59,819 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 13:02:59,819 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-25 13:02:59,822 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 92 transitions, 746 flow [2021-03-25 13:02:59,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,822 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:59,823 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:59,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 13:02:59,823 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:02:59,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:59,823 INFO L82 PathProgramCache]: Analyzing trace with hash 158849276, now seen corresponding path program 4 times [2021-03-25 13:02:59,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:59,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406439680] [2021-03-25 13:02:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:59,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:59,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 13:02:59,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:59,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:59,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406439680] [2021-03-25 13:02:59,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:59,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:59,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044808941] [2021-03-25 13:02:59,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:02:59,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:59,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:02:59,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:02:59,880 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 174 [2021-03-25 13:02:59,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 92 transitions, 746 flow. Second operand has 4 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:02:59,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:59,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 174 [2021-03-25 13:02:59,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:03:00,027 INFO L129 PetriNetUnfolder]: 275/678 cut-off events. [2021-03-25 13:03:00,028 INFO L130 PetriNetUnfolder]: For 1633/1656 co-relation queries the response was YES. [2021-03-25 13:03:00,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 678 events. 275/678 cut-off events. For 1633/1656 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3688 event pairs, 51 based on Foata normal form. 42/711 useless extension candidates. Maximal degree in co-relation 2113. Up to 314 conditions per place. [2021-03-25 13:03:00,031 INFO L132 encePairwiseOnDemand]: 158/174 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2021-03-25 13:03:00,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 122 transitions, 1009 flow [2021-03-25 13:03:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:03:00,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:03:00,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2021-03-25 13:03:00,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6425287356321839 [2021-03-25 13:03:00,034 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2021-03-25 13:03:00,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2021-03-25 13:03:00,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:03:00,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2021-03-25 13:03:00,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:03:00,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:03:00,039 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:03:00,039 INFO L185 Difference]: Start difference. First operand has 63 places, 92 transitions, 746 flow. Second operand 5 states and 559 transitions. [2021-03-25 13:03:00,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 122 transitions, 1009 flow [2021-03-25 13:03:00,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 122 transitions, 969 flow, removed 20 selfloop flow, removed 0 redundant places. [2021-03-25 13:03:00,048 INFO L241 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2021-03-25 13:03:00,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2021-03-25 13:03:00,048 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2021-03-25 13:03:00,049 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:03:00,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 0 transitions, 0 flow [2021-03-25 13:03:00,049 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 0 transitions, 0 flow [2021-03-25 13:03:00,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 13:03:00,049 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 13:03:00,050 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:03:00,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 13:03:00,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 13:03:00,050 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 13:03:00,050 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:03:00,050 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 13:03:00,053 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 13:03:00,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:03:00,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 13:03:00,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 01:03:00 BasicIcfg [2021-03-25 13:03:00,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 13:03:00,061 INFO L168 Benchmark]: Toolchain (without parser) took 4831.33 ms. Allocated memory was 255.9 MB in the beginning and 520.1 MB in the end (delta: 264.2 MB). Free memory was 233.4 MB in the beginning and 361.6 MB in the end (delta: -128.2 MB). Peak memory consumption was 135.4 MB. Max. memory is 16.0 GB. [2021-03-25 13:03:00,061 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:03:00,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.79 ms. Allocated memory was 255.9 MB in the beginning and 432.0 MB in the end (delta: 176.2 MB). Free memory was 233.4 MB in the beginning and 395.2 MB in the end (delta: -161.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 13:03:00,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.63 ms. Allocated memory is still 432.0 MB. Free memory was 395.2 MB in the beginning and 393.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 13:03:00,062 INFO L168 Benchmark]: Boogie Preprocessor took 23.77 ms. Allocated memory is still 432.0 MB. Free memory was 393.4 MB in the beginning and 392.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:03:00,063 INFO L168 Benchmark]: RCFGBuilder took 411.75 ms. Allocated memory is still 432.0 MB. Free memory was 392.0 MB in the beginning and 407.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. [2021-03-25 13:03:00,063 INFO L168 Benchmark]: TraceAbstraction took 3922.08 ms. Allocated memory was 432.0 MB in the beginning and 520.1 MB in the end (delta: 88.1 MB). Free memory was 406.3 MB in the beginning and 361.6 MB in the end (delta: 44.7 MB). Peak memory consumption was 132.4 MB. Max. memory is 16.0 GB. [2021-03-25 13:03:00,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 435.79 ms. Allocated memory was 255.9 MB in the beginning and 432.0 MB in the end (delta: 176.2 MB). Free memory was 233.4 MB in the beginning and 395.2 MB in the end (delta: -161.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.63 ms. Allocated memory is still 432.0 MB. Free memory was 395.2 MB in the beginning and 393.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.77 ms. Allocated memory is still 432.0 MB. Free memory was 393.4 MB in the beginning and 392.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 411.75 ms. Allocated memory is still 432.0 MB. Free memory was 392.0 MB in the beginning and 407.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3922.08 ms. Allocated memory was 432.0 MB in the beginning and 520.1 MB in the end (delta: 88.1 MB). Free memory was 406.3 MB in the beginning and 361.6 MB in the end (delta: 44.7 MB). Peak memory consumption was 132.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1503.5ms, 83 PlacesBefore, 44 PlacesAfterwards, 97 TransitionsBefore, 49 TransitionsAfterwards, 3528 CoEnabledTransitionPairs, 4 FixpointIterations, 12 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 9 ChoiceCompositions, 60 TotalNumberOfCompositions, 2188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1728, positive: 1710, positive conditional: 0, positive unconditional: 1710, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1614, positive: 1604, positive conditional: 0, positive unconditional: 1604, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1614, positive: 1604, positive conditional: 0, positive unconditional: 1604, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1614, positive: 1602, positive conditional: 0, positive unconditional: 1602, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1728, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 1614, unknown conditional: 0, unknown unconditional: 1614] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 742.1ms, 44 PlacesBefore, 40 PlacesAfterwards, 49 TransitionsBefore, 45 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 918 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 205, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 88, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 88, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 205, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 88, unknown conditional: 0, unknown unconditional: 88] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.6ms, 41 PlacesBefore, 41 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 868 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.2ms, 47 PlacesBefore, 47 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 766 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.1ms, 55 PlacesBefore, 55 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 844 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 117.4ms, 63 PlacesBefore, 63 PlacesAfterwards, 92 TransitionsBefore, 92 TransitionsAfterwards, 966 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 83, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 106, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 65 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 106, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: 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 3 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3826.9ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 793.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1590.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 101 SDslu, 56 SDs, 0 SdLazy, 269 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 220.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=746occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.6ms SsaConstructionTime, 69.5ms SatisfiabilityAnalysisTime, 232.6ms InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...