/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-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 10:00:18,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 10:00:18,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 10:00:18,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 10:00:18,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 10:00:18,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 10:00:18,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 10:00:18,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 10:00:18,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 10:00:18,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 10:00:18,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 10:00:18,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 10:00:18,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 10:00:18,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 10:00:18,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 10:00:18,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 10:00:18,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 10:00:18,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 10:00:18,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 10:00:18,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 10:00:18,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 10:00:18,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 10:00:18,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 10:00:18,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 10:00:18,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 10:00:18,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 10:00:18,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 10:00:18,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 10:00:18,799 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-FA-SemanticLbe.epf [2021-03-11 10:00:18,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 10:00:18,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 10:00:18,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 10:00:18,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 10:00:18,837 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 10:00:18,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 10:00:18,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 10:00:18,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 10:00:18,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 10:00:18,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 10:00:18,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 10:00:18,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 10:00:18,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 10:00:18,839 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 10:00:18,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 10:00:18,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 10:00:18,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 10:00:18,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 10:00:18,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 10:00:18,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 10:00:18,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 10:00:18,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 10:00:18,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 10:00:18,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 10:00:18,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 10:00:18,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 10:00:18,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 10:00:18,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 10:00:18,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 10:00:19,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 10:00:19,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 10:00:19,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 10:00:19,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 10:00:19,154 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 10:00:19,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2021-03-11 10:00:19,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df37b99d4/40f2539fe3c349139524aea52099fb12/FLAG1962bbb77 [2021-03-11 10:00:19,699 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 10:00:19,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2021-03-11 10:00:19,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df37b99d4/40f2539fe3c349139524aea52099fb12/FLAG1962bbb77 [2021-03-11 10:00:19,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df37b99d4/40f2539fe3c349139524aea52099fb12 [2021-03-11 10:00:19,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 10:00:19,991 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 10:00:20,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 10:00:20,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 10:00:20,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 10:00:20,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 10:00:19" (1/1) ... [2021-03-11 10:00:20,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ad6838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20, skipping insertion in model container [2021-03-11 10:00:20,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 10:00:19" (1/1) ... [2021-03-11 10:00:20,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 10:00:20,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 10:00:20,285 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-ext/23_lu-fig2.fixed.i[30382,30395] [2021-03-11 10:00:20,289 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-ext/23_lu-fig2.fixed.i[30752,30765] [2021-03-11 10:00:20,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 10:00:20,299 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 10:00:20,325 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-ext/23_lu-fig2.fixed.i[30382,30395] [2021-03-11 10:00:20,327 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-ext/23_lu-fig2.fixed.i[30752,30765] [2021-03-11 10:00:20,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 10:00:20,394 INFO L208 MainTranslator]: Completed translation [2021-03-11 10:00:20,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20 WrapperNode [2021-03-11 10:00:20,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 10:00:20,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 10:00:20,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 10:00:20,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 10:00:20,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 10:00:20,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 10:00:20,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 10:00:20,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 10:00:20,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (1/1) ... [2021-03-11 10:00:20,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 10:00:20,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 10:00:20,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 10:00:20,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 10:00:20,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (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 [2021-03-11 10:00:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-11 10:00:20,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-11 10:00:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 10:00:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 10:00:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 10:00:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 10:00:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 10:00:20,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 10:00:20,521 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 10:00:21,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 10:00:21,122 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-03-11 10:00:21,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:00:21 BoogieIcfgContainer [2021-03-11 10:00:21,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 10:00:21,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 10:00:21,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 10:00:21,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 10:00:21,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 10:00:19" (1/3) ... [2021-03-11 10:00:21,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f6af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:00:21, skipping insertion in model container [2021-03-11 10:00:21,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:00:20" (2/3) ... [2021-03-11 10:00:21,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f6af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:00:21, skipping insertion in model container [2021-03-11 10:00:21,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:00:21" (3/3) ... [2021-03-11 10:00:21,132 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2021-03-11 10:00:21,139 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 10:00:21,139 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 10:00:21,143 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 10:00:21,144 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 10:00:21,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,175 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 10:00:21,184 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 10:00:21,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 10:00:21,223 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 10:00:21,223 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 10:00:21,223 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 10:00:21,223 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 10:00:21,223 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 10:00:21,223 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 10:00:21,223 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 10:00:21,223 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 10:00:21,232 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 10:00:21,240 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 47 transitions, 99 flow [2021-03-11 10:00:21,242 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 47 transitions, 99 flow [2021-03-11 10:00:21,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 47 transitions, 99 flow [2021-03-11 10:00:21,264 INFO L129 PetriNetUnfolder]: 2/46 cut-off events. [2021-03-11 10:00:21,264 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 10:00:21,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-03-11 10:00:21,268 INFO L116 LiptonReduction]: Number of co-enabled transitions 378 [2021-03-11 10:00:23,040 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2021-03-11 10:00:23,226 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2021-03-11 10:00:23,281 INFO L131 LiptonReduction]: Checked pairs total: 829 [2021-03-11 10:00:23,282 INFO L133 LiptonReduction]: Total number of compositions: 36 [2021-03-11 10:00:23,288 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2021-03-11 10:00:23,294 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 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) [2021-03-11 10:00:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 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) [2021-03-11 10:00:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-03-11 10:00:23,298 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 10:00:23,298 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-03-11 10:00:23,299 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 10:00:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 10:00:23,302 INFO L82 PathProgramCache]: Analyzing trace with hash 10739564, now seen corresponding path program 1 times [2021-03-11 10:00:23,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 10:00:23,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459053807] [2021-03-11 10:00:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 10:00:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 10:00:23,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 10:00:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 10:00:23,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459053807] [2021-03-11 10:00:23,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 10:00:23,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 10:00:23,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427847523] [2021-03-11 10:00:23,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 10:00:23,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 10:00:23,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 10:00:23,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 10:00:23,452 INFO L87 Difference]: Start difference. First operand has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-03-11 10:00:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 10:00:23,474 INFO L93 Difference]: Finished difference Result 29 states and 50 transitions. [2021-03-11 10:00:23,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 10:00:23,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-03-11 10:00:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 10:00:23,481 INFO L225 Difference]: With dead ends: 29 [2021-03-11 10:00:23,481 INFO L226 Difference]: Without dead ends: 22 [2021-03-11 10:00:23,482 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 10:00:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-03-11 10:00:23,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-03-11 10:00:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 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) [2021-03-11 10:00:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 38 transitions. [2021-03-11 10:00:23,505 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 38 transitions. Word has length 4 [2021-03-11 10:00:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 10:00:23,505 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 38 transitions. [2021-03-11 10:00:23,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-03-11 10:00:23,505 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2021-03-11 10:00:23,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-11 10:00:23,506 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 10:00:23,506 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 10:00:23,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 10:00:23,507 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 10:00:23,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 10:00:23,507 INFO L82 PathProgramCache]: Analyzing trace with hash 332927994, now seen corresponding path program 1 times [2021-03-11 10:00:23,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 10:00:23,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728390026] [2021-03-11 10:00:23,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 10:00:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 10:00:23,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 10:00:23,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 10:00:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 10:00:23,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728390026] [2021-03-11 10:00:23,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 10:00:23,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 10:00:23,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459290745] [2021-03-11 10:00:23,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 10:00:23,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 10:00:23,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 10:00:23,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 10:00:23,547 INFO L87 Difference]: Start difference. First operand 22 states and 38 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-03-11 10:00:23,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 10:00:23,552 INFO L93 Difference]: Finished difference Result 21 states and 35 transitions. [2021-03-11 10:00:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 10:00:23,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2021-03-11 10:00:23,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 10:00:23,553 INFO L225 Difference]: With dead ends: 21 [2021-03-11 10:00:23,553 INFO L226 Difference]: Without dead ends: 18 [2021-03-11 10:00:23,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 10:00:23,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-03-11 10:00:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-03-11 10:00:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 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) [2021-03-11 10:00:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-03-11 10:00:23,559 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 27 transitions. Word has length 5 [2021-03-11 10:00:23,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 10:00:23,559 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-03-11 10:00:23,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-03-11 10:00:23,560 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2021-03-11 10:00:23,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-03-11 10:00:23,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 10:00:23,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-11 10:00:23,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 10:00:23,561 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 10:00:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 10:00:23,561 INFO L82 PathProgramCache]: Analyzing trace with hash 2114516670, now seen corresponding path program 1 times [2021-03-11 10:00:23,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 10:00:23,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466787188] [2021-03-11 10:00:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 10:00:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 10:00:23,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 10:00:23,628 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-11 10:00:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 10:00:23,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 10:00:23,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 10:00:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 10:00:23,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466787188] [2021-03-11 10:00:23,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 10:00:23,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 10:00:23,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504967248] [2021-03-11 10:00:23,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 10:00:23,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 10:00:23,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 10:00:23,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 10:00:23,643 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-03-11 10:00:23,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 10:00:23,664 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-03-11 10:00:23,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 10:00:23,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2021-03-11 10:00:23,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 10:00:23,665 INFO L225 Difference]: With dead ends: 14 [2021-03-11 10:00:23,665 INFO L226 Difference]: Without dead ends: 14 [2021-03-11 10:00:23,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 10:00:23,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-03-11 10:00:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-03-11 10:00:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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) [2021-03-11 10:00:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2021-03-11 10:00:23,673 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 19 transitions. Word has length 7 [2021-03-11 10:00:23,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 10:00:23,673 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-03-11 10:00:23,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-03-11 10:00:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2021-03-11 10:00:23,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 10:00:23,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 10:00:23,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 10:00:23,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 10:00:23,674 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 10:00:23,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 10:00:23,676 INFO L82 PathProgramCache]: Analyzing trace with hash 498866591, now seen corresponding path program 1 times [2021-03-11 10:00:23,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 10:00:23,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323518476] [2021-03-11 10:00:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 10:00:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 10:00:23,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 10:00:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 10:00:23,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 10:00:23,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 10:00:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 10:00:23,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323518476] [2021-03-11 10:00:23,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 10:00:23,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 10:00:23,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150665041] [2021-03-11 10:00:23,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 10:00:23,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 10:00:23,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 10:00:23,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 10:00:23,766 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-03-11 10:00:23,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 10:00:23,770 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2021-03-11 10:00:23,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 10:00:23,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2021-03-11 10:00:23,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 10:00:23,770 INFO L225 Difference]: With dead ends: 13 [2021-03-11 10:00:23,770 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 10:00:23,770 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 10:00:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 10:00:23,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 10:00:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-03-11 10:00:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 10:00:23,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-03-11 10:00:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 10:00:23,771 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 10:00:23,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-03-11 10:00:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 10:00:23,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 10:00:23,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 10:00:23,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 10:00:23 BasicIcfg [2021-03-11 10:00:23,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 10:00:23,775 INFO L168 Benchmark]: Toolchain (without parser) took 3787.18 ms. Allocated memory was 377.5 MB in the beginning and 469.8 MB in the end (delta: 92.3 MB). Free memory was 341.1 MB in the beginning and 344.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 90.9 MB. Max. memory is 16.0 GB. [2021-03-11 10:00:23,776 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 377.5 MB. Free memory was 359.3 MB in the beginning and 359.2 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 10:00:23,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.05 ms. Allocated memory is still 377.5 MB. Free memory was 340.5 MB in the beginning and 341.2 MB in the end (delta: -685.8 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-11 10:00:23,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.62 ms. Allocated memory is still 377.5 MB. Free memory was 341.2 MB in the beginning and 339.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 10:00:23,777 INFO L168 Benchmark]: Boogie Preprocessor took 18.04 ms. Allocated memory is still 377.5 MB. Free memory was 339.1 MB in the beginning and 337.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 10:00:23,778 INFO L168 Benchmark]: RCFGBuilder took 656.61 ms. Allocated memory is still 377.5 MB. Free memory was 337.0 MB in the beginning and 293.0 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.0 GB. [2021-03-11 10:00:23,778 INFO L168 Benchmark]: TraceAbstraction took 2648.82 ms. Allocated memory was 377.5 MB in the beginning and 469.8 MB in the end (delta: 92.3 MB). Free memory was 293.0 MB in the beginning and 344.1 MB in the end (delta: -51.1 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.0 GB. [2021-03-11 10:00:23,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 377.5 MB. Free memory was 359.3 MB in the beginning and 359.2 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 395.05 ms. Allocated memory is still 377.5 MB. Free memory was 340.5 MB in the beginning and 341.2 MB in the end (delta: -685.8 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.62 ms. Allocated memory is still 377.5 MB. Free memory was 341.2 MB in the beginning and 339.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.04 ms. Allocated memory is still 377.5 MB. Free memory was 339.1 MB in the beginning and 337.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 656.61 ms. Allocated memory is still 377.5 MB. Free memory was 337.0 MB in the beginning and 293.0 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2648.82 ms. Allocated memory was 377.5 MB in the beginning and 469.8 MB in the end (delta: 92.3 MB). Free memory was 293.0 MB in the beginning and 344.1 MB in the end (delta: -51.1 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2039.5ms, 49 PlacesBefore, 17 PlacesAfterwards, 47 TransitionsBefore, 14 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 36 TotalNumberOfCompositions, 829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 518, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 275, positive: 253, positive conditional: 0, positive unconditional: 253, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 275, positive: 242, positive conditional: 0, positive unconditional: 242, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 518, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 275, unknown conditional: 0, unknown unconditional: 275] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - PositiveResult [Line: 707]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 721]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2551.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 5.7ms, AutomataDifference: 77.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2070.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 18 SDslu, 20 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.0ms SsaConstructionTime, 60.3ms SatisfiabilityAnalysisTime, 187.6ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 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...