/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:06:42,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:06:42,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:06:42,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:06:42,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:06:42,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:06:42,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:06:42,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:06:42,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:06:42,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:06:42,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:06:42,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:06:42,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:06:42,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:06:42,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:06:42,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:06:42,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:06:42,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:06:42,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:06:42,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:06:42,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:06:42,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:06:42,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:06:42,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:06:42,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:06:42,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:06:42,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:06:42,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:06:42,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:06:42,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:06:42,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:06:42,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:06:42,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:06:42,784 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:06:42,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:06:42,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:06:42,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:06:42,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:06:42,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:06:42,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:06:42,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:06:42,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:06:42,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:06:42,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:06:42,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:06:42,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:06:42,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:06:42,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:06:42,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:06:42,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:06:42,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:06:42,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:06:42,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:06:42,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:06:42,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:06:42,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:06:42,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:06:42,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:06:42,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:06:43,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:06:43,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:06:43,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:06:43,275 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:06:43,276 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:06:43,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2020-11-09 12:06:43,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990edb284/c72e32c939ca401988b340dcc12859d8/FLAGd7c7b9598 [2020-11-09 12:06:44,038 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:06:44,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2020-11-09 12:06:44,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990edb284/c72e32c939ca401988b340dcc12859d8/FLAGd7c7b9598 [2020-11-09 12:06:44,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990edb284/c72e32c939ca401988b340dcc12859d8 [2020-11-09 12:06:44,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:06:44,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:06:44,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:06:44,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:06:44,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:06:44,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:44,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2d38ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44, skipping insertion in model container [2020-11-09 12:06:44,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:44,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:06:44,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:06:44,617 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-09 12:06:44,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:06:44,802 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:06:44,822 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-09 12:06:44,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:06:44,976 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:06:44,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44 WrapperNode [2020-11-09 12:06:44,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:06:44,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:06:44,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:06:44,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:06:44,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:06:45,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:06:45,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:06:45,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:06:45,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (1/1) ... [2020-11-09 12:06:45,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:06:45,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:06:45,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:06:45,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:06:45,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (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 [2020-11-09 12:06:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 12:06:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-09 12:06:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-09 12:06:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 12:06:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 12:06:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:06:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:06:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:06:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:06:45,186 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:06:45,593 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:06:45,594 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:06:45,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:45 BoogieIcfgContainer [2020-11-09 12:06:45,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:06:45,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:06:45,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:06:45,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:06:45,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:06:44" (1/3) ... [2020-11-09 12:06:45,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21747df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:06:45, skipping insertion in model container [2020-11-09 12:06:45,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:44" (2/3) ... [2020-11-09 12:06:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21747df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:06:45, skipping insertion in model container [2020-11-09 12:06:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:45" (3/3) ... [2020-11-09 12:06:45,607 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2020-11-09 12:06:45,624 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:06:45,625 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:06:45,628 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-09 12:06:45,630 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:06:45,664 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,664 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,664 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,665 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,665 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,665 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,665 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,666 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,666 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,666 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,667 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,667 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,667 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,667 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,669 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,670 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,670 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,670 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,670 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,671 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,671 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,671 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,672 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,672 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,672 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,682 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,683 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,683 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,683 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,684 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,684 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,684 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,684 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:06:45,701 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-09 12:06:45,714 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-09 12:06:45,739 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:06:45,740 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:06:45,740 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:06:45,740 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:06:45,740 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:06:45,740 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:06:45,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:06:45,740 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:06:45,754 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:06:45,757 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 78 transitions, 178 flow [2020-11-09 12:06:45,760 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 78 transitions, 178 flow [2020-11-09 12:06:45,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 78 transitions, 178 flow [2020-11-09 12:06:45,824 INFO L129 PetriNetUnfolder]: 9/78 cut-off events. [2020-11-09 12:06:45,826 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-09 12:06:45,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 9/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 3 conditions per place. [2020-11-09 12:06:45,839 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2020-11-09 12:06:48,365 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-11-09 12:06:48,470 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:06:48,747 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-11-09 12:06:48,872 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:06:48,889 INFO L131 LiptonReduction]: Checked pairs total: 4014 [2020-11-09 12:06:48,890 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-11-09 12:06:48,902 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 35 transitions, 92 flow [2020-11-09 12:06:48,923 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 239 states. [2020-11-09 12:06:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states. [2020-11-09 12:06:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:06:48,933 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:06:48,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:06:48,934 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:06:48,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:06:48,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1618910569, now seen corresponding path program 1 times [2020-11-09 12:06:48,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:06:48,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492410740] [2020-11-09 12:06:48,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:06:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:06:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:06:49,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492410740] [2020-11-09 12:06:49,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:06:49,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:06:49,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539127902] [2020-11-09 12:06:49,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:06:49,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:06:49,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:06:49,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:06:49,206 INFO L87 Difference]: Start difference. First operand 239 states. Second operand 3 states. [2020-11-09 12:06:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:06:49,270 INFO L93 Difference]: Finished difference Result 275 states and 588 transitions. [2020-11-09 12:06:49,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:06:49,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 12:06:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:06:49,287 INFO L225 Difference]: With dead ends: 275 [2020-11-09 12:06:49,288 INFO L226 Difference]: Without dead ends: 187 [2020-11-09 12:06:49,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:06:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-09 12:06:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 173. [2020-11-09 12:06:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-11-09 12:06:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 391 transitions. [2020-11-09 12:06:49,351 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 391 transitions. Word has length 8 [2020-11-09 12:06:49,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:06:49,352 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 391 transitions. [2020-11-09 12:06:49,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:06:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 391 transitions. [2020-11-09 12:06:49,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:06:49,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:06:49,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:06:49,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:06:49,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:06:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:06:49,356 INFO L82 PathProgramCache]: Analyzing trace with hash -866632567, now seen corresponding path program 1 times [2020-11-09 12:06:49,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:06:49,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450238329] [2020-11-09 12:06:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:06:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:06:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:06:49,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450238329] [2020-11-09 12:06:49,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:06:49,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:06:49,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109012827] [2020-11-09 12:06:49,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:06:49,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:06:49,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:06:49,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:06:49,480 INFO L87 Difference]: Start difference. First operand 173 states and 391 transitions. Second operand 3 states. [2020-11-09 12:06:49,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:06:49,519 INFO L93 Difference]: Finished difference Result 166 states and 361 transitions. [2020-11-09 12:06:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:06:49,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 12:06:49,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:06:49,522 INFO L225 Difference]: With dead ends: 166 [2020-11-09 12:06:49,522 INFO L226 Difference]: Without dead ends: 120 [2020-11-09 12:06:49,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:06:49,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-11-09 12:06:49,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-11-09 12:06:49,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-09 12:06:49,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 259 transitions. [2020-11-09 12:06:49,547 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 259 transitions. Word has length 10 [2020-11-09 12:06:49,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:06:49,548 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 259 transitions. [2020-11-09 12:06:49,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:06:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 259 transitions. [2020-11-09 12:06:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:06:49,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:06:49,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:06:49,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:06:49,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:06:49,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:06:49,555 INFO L82 PathProgramCache]: Analyzing trace with hash 351078122, now seen corresponding path program 1 times [2020-11-09 12:06:49,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:06:49,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775151607] [2020-11-09 12:06:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:06:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:06:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:06:49,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775151607] [2020-11-09 12:06:49,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:06:49,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-09 12:06:49,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014963501] [2020-11-09 12:06:49,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:06:49,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:06:49,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:06:49,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:06:49,660 INFO L87 Difference]: Start difference. First operand 120 states and 259 transitions. Second operand 6 states. [2020-11-09 12:06:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:06:49,762 INFO L93 Difference]: Finished difference Result 162 states and 364 transitions. [2020-11-09 12:06:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:06:49,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 12:06:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:06:49,764 INFO L225 Difference]: With dead ends: 162 [2020-11-09 12:06:49,764 INFO L226 Difference]: Without dead ends: 100 [2020-11-09 12:06:49,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-09 12:06:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-09 12:06:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-09 12:06:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-09 12:06:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 193 transitions. [2020-11-09 12:06:49,788 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 193 transitions. Word has length 15 [2020-11-09 12:06:49,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:06:49,788 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 193 transitions. [2020-11-09 12:06:49,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:06:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 193 transitions. [2020-11-09 12:06:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:06:49,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:06:49,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:06:49,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:06:49,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:06:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:06:49,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1265425900, now seen corresponding path program 2 times [2020-11-09 12:06:49,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:06:49,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720152908] [2020-11-09 12:06:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:06:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:06:49,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:06:49,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720152908] [2020-11-09 12:06:49,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:06:49,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-09 12:06:49,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742455557] [2020-11-09 12:06:49,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:06:49,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:06:49,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:06:49,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:06:49,858 INFO L87 Difference]: Start difference. First operand 100 states and 193 transitions. Second operand 6 states. [2020-11-09 12:06:49,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:06:49,900 INFO L93 Difference]: Finished difference Result 58 states and 122 transitions. [2020-11-09 12:06:49,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:06:49,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 12:06:49,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:06:49,901 INFO L225 Difference]: With dead ends: 58 [2020-11-09 12:06:49,901 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:06:49,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:06:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:06:49,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:06:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:06:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:06:49,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-09 12:06:49,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:06:49,902 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:06:49,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:06:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:06:49,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:06:49,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:06:49,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:06:49 BasicIcfg [2020-11-09 12:06:49,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:06:49,909 INFO L168 Benchmark]: Toolchain (without parser) took 5555.28 ms. Allocated memory was 167.8 MB in the beginning and 213.9 MB in the end (delta: 46.1 MB). Free memory was 141.9 MB in the beginning and 177.4 MB in the end (delta: -35.5 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:06:49,909 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 167.8 MB. Free memory is still 140.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:06:49,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.28 ms. Allocated memory is still 167.8 MB. Free memory was 141.2 MB in the beginning and 147.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:06:49,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.96 ms. Allocated memory is still 167.8 MB. Free memory was 147.3 MB in the beginning and 145.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:06:49,912 INFO L168 Benchmark]: Boogie Preprocessor took 32.62 ms. Allocated memory is still 167.8 MB. Free memory was 145.4 MB in the beginning and 143.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:06:49,913 INFO L168 Benchmark]: RCFGBuilder took 489.27 ms. Allocated memory is still 167.8 MB. Free memory was 143.8 MB in the beginning and 122.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:06:49,914 INFO L168 Benchmark]: TraceAbstraction took 4308.36 ms. Allocated memory was 167.8 MB in the beginning and 213.9 MB in the end (delta: 46.1 MB). Free memory was 122.3 MB in the beginning and 177.4 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:06:49,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 167.8 MB. Free memory is still 140.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 621.28 ms. Allocated memory is still 167.8 MB. Free memory was 141.2 MB in the beginning and 147.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 90.96 ms. Allocated memory is still 167.8 MB. Free memory was 147.3 MB in the beginning and 145.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.62 ms. Allocated memory is still 167.8 MB. Free memory was 145.4 MB in the beginning and 143.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 489.27 ms. Allocated memory is still 167.8 MB. Free memory was 143.8 MB in the beginning and 122.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4308.36 ms. Allocated memory was 167.8 MB in the beginning and 213.9 MB in the end (delta: 46.1 MB). Free memory was 122.3 MB in the beginning and 177.4 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 970 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 190 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 75 PlacesBefore, 36 PlacesAfterwards, 78 TransitionsBefore, 35 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 4 ChoiceCompositions, 63 TotalNumberOfCompositions, 4014 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 147 SDtfs, 111 SDslu, 174 SDs, 0 SdLazy, 87 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...