/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/peterson-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:41:54,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:41:54,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:41:54,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:41:54,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:41:54,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:41:54,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:41:54,177 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-NoLbe.epf [2021-10-13 22:41:54,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:41:54,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:41:54,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:41:54,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:41:54,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:41:54,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:41:54,207 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:41:54,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:41:54,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:41:54,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:41:54,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:41:54,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:41:54,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:41:54,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:41:54,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:41:54,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:41:54,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:41:54,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:41:54,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:41:54,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:41:54,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:41:54,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:41:54,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:41:54,211 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:41:54,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:41:54,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:41:54,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:41:54,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:41:54,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:41:54,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:41:54,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:41:54,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson-b.i [2021-10-13 22:41:54,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de49fab/9aafa852c4ed42049a291ba3eb298835/FLAG7689e4538 [2021-10-13 22:41:54,889 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:41:54,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i [2021-10-13 22:41:54,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de49fab/9aafa852c4ed42049a291ba3eb298835/FLAG7689e4538 [2021-10-13 22:41:55,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de49fab/9aafa852c4ed42049a291ba3eb298835 [2021-10-13 22:41:55,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:41:55,246 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:41:55,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:41:55,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:41:55,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:41:55,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36588b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55, skipping insertion in model container [2021-10-13 22:41:55,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:41:55,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:41:55,554 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30010,30023] [2021-10-13 22:41:55,567 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30174,30187] [2021-10-13 22:41:55,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:41:55,585 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:41:55,625 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30010,30023] [2021-10-13 22:41:55,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30174,30187] [2021-10-13 22:41:55,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:41:55,661 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:41:55,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55 WrapperNode [2021-10-13 22:41:55,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:41:55,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:41:55,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:41:55,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:41:55,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:41:55,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:41:55,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:41:55,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:41:55,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:41:55,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:41:55,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:41:55,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:41:55,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (1/1) ... [2021-10-13 22:41:55,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:41:55,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:41:55,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 22:41:55,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 22:41:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:41:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-13 22:41:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-13 22:41:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-13 22:41:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-13 22:41:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:41:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:41:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:41:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:41:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:41:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:41:55,827 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:41:56,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:41:56,123 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 22:41:56,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:41:56 BoogieIcfgContainer [2021-10-13 22:41:56,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:41:56,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:41:56,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:41:56,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:41:56,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:41:55" (1/3) ... [2021-10-13 22:41:56,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba946dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:41:56, skipping insertion in model container [2021-10-13 22:41:56,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:55" (2/3) ... [2021-10-13 22:41:56,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba946dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:41:56, skipping insertion in model container [2021-10-13 22:41:56,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:41:56" (3/3) ... [2021-10-13 22:41:56,133 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2021-10-13 22:41:56,137 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:41:56,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:41:56,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 22:41:56,138 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:41:56,161 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,161 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,162 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,162 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,177 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,178 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,185 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:56,190 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 22:41:56,224 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:41:56,229 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 22:41:56,229 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:41:56,238 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 72 transitions, 160 flow [2021-10-13 22:41:56,291 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 697 states, 694 states have (on average 2.867435158501441) internal successors, (1990), 696 states have internal predecessors, (1990), 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) [2021-10-13 22:41:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 697 states, 694 states have (on average 2.867435158501441) internal successors, (1990), 696 states have internal predecessors, (1990), 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) [2021-10-13 22:41:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:41:56,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:56,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:56,302 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:56,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:56,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1942267775, now seen corresponding path program 1 times [2021-10-13 22:41:56,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:56,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045609613] [2021-10-13 22:41:56,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:56,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:56,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:56,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045609613] [2021-10-13 22:41:56,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045609613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:56,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:56,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:41:56,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71257551] [2021-10-13 22:41:56,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 22:41:56,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 22:41:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:41:56,524 INFO L87 Difference]: Start difference. First operand has 697 states, 694 states have (on average 2.867435158501441) internal successors, (1990), 696 states have internal predecessors, (1990), 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 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-10-13 22:41:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:56,556 INFO L93 Difference]: Finished difference Result 627 states and 1619 transitions. [2021-10-13 22:41:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 22:41:56,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-10-13 22:41:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:56,572 INFO L225 Difference]: With dead ends: 627 [2021-10-13 22:41:56,573 INFO L226 Difference]: Without dead ends: 627 [2021-10-13 22:41:56,574 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:41:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-10-13 22:41:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 627. [2021-10-13 22:41:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 624 states have (on average 2.594551282051282) internal successors, (1619), 626 states have internal predecessors, (1619), 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) [2021-10-13 22:41:56,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1619 transitions. [2021-10-13 22:41:56,648 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1619 transitions. Word has length 26 [2021-10-13 22:41:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:56,648 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 1619 transitions. [2021-10-13 22:41:56,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-10-13 22:41:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1619 transitions. [2021-10-13 22:41:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:41:56,649 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:56,650 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:56,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:41:56,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:56,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1942237984, now seen corresponding path program 1 times [2021-10-13 22:41:56,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:56,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441490184] [2021-10-13 22:41:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:56,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:56,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:56,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441490184] [2021-10-13 22:41:56,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441490184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:56,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:56,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:56,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048327810] [2021-10-13 22:41:56,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:56,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:56,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:56,716 INFO L87 Difference]: Start difference. First operand 627 states and 1619 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:41:56,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:56,765 INFO L93 Difference]: Finished difference Result 660 states and 1649 transitions. [2021-10-13 22:41:56,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:56,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 22:41:56,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:56,771 INFO L225 Difference]: With dead ends: 660 [2021-10-13 22:41:56,771 INFO L226 Difference]: Without dead ends: 564 [2021-10-13 22:41:56,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-10-13 22:41:56,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 507. [2021-10-13 22:41:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 504 states have (on average 2.5198412698412698) internal successors, (1270), 506 states have internal predecessors, (1270), 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) [2021-10-13 22:41:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1270 transitions. [2021-10-13 22:41:56,811 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1270 transitions. Word has length 26 [2021-10-13 22:41:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:56,811 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 1270 transitions. [2021-10-13 22:41:56,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:41:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1270 transitions. [2021-10-13 22:41:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 22:41:56,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:56,813 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:56,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:41:56,814 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:56,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:56,814 INFO L82 PathProgramCache]: Analyzing trace with hash -808826781, now seen corresponding path program 1 times [2021-10-13 22:41:56,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:56,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468878865] [2021-10-13 22:41:56,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:56,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:56,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:56,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468878865] [2021-10-13 22:41:56,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468878865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:56,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:56,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:56,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915715204] [2021-10-13 22:41:56,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:56,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:56,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:56,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:56,861 INFO L87 Difference]: Start difference. First operand 507 states and 1270 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-10-13 22:41:56,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:56,893 INFO L93 Difference]: Finished difference Result 462 states and 1109 transitions. [2021-10-13 22:41:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:56,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-10-13 22:41:56,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:56,898 INFO L225 Difference]: With dead ends: 462 [2021-10-13 22:41:56,898 INFO L226 Difference]: Without dead ends: 324 [2021-10-13 22:41:56,898 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-10-13 22:41:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-10-13 22:41:56,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 322 states have (on average 2.375776397515528) internal successors, (765), 323 states have internal predecessors, (765), 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) [2021-10-13 22:41:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 765 transitions. [2021-10-13 22:41:56,908 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 765 transitions. Word has length 32 [2021-10-13 22:41:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:56,909 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 765 transitions. [2021-10-13 22:41:56,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-10-13 22:41:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 765 transitions. [2021-10-13 22:41:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 22:41:56,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:56,914 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:56,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:41:56,915 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:56,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:56,917 INFO L82 PathProgramCache]: Analyzing trace with hash 539682435, now seen corresponding path program 1 times [2021-10-13 22:41:56,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:56,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638576903] [2021-10-13 22:41:56,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:56,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:57,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:57,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638576903] [2021-10-13 22:41:57,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638576903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:57,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:57,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:41:57,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335271564] [2021-10-13 22:41:57,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:41:57,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:57,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:41:57,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:41:57,027 INFO L87 Difference]: Start difference. First operand 324 states and 765 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-10-13 22:41:57,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:57,063 INFO L93 Difference]: Finished difference Result 348 states and 827 transitions. [2021-10-13 22:41:57,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 22:41:57,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2021-10-13 22:41:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:57,066 INFO L225 Difference]: With dead ends: 348 [2021-10-13 22:41:57,066 INFO L226 Difference]: Without dead ends: 282 [2021-10-13 22:41:57,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:41:57,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-13 22:41:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-13 22:41:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 280 states have (on average 2.2607142857142857) internal successors, (633), 281 states have internal predecessors, (633), 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) [2021-10-13 22:41:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 633 transitions. [2021-10-13 22:41:57,074 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 633 transitions. Word has length 37 [2021-10-13 22:41:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:57,074 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 633 transitions. [2021-10-13 22:41:57,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-10-13 22:41:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 633 transitions. [2021-10-13 22:41:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 22:41:57,075 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:57,075 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:57,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:41:57,076 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:57,076 INFO L82 PathProgramCache]: Analyzing trace with hash 713578559, now seen corresponding path program 2 times [2021-10-13 22:41:57,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:57,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027368157] [2021-10-13 22:41:57,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:57,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:57,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:57,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027368157] [2021-10-13 22:41:57,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027368157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:57,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:57,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:41:57,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828342468] [2021-10-13 22:41:57,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:41:57,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:41:57,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:41:57,152 INFO L87 Difference]: Start difference. First operand 282 states and 633 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-10-13 22:41:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:57,160 INFO L93 Difference]: Finished difference Result 133 states and 297 transitions. [2021-10-13 22:41:57,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 22:41:57,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2021-10-13 22:41:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:57,161 INFO L225 Difference]: With dead ends: 133 [2021-10-13 22:41:57,161 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 22:41:57,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:41:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 22:41:57,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 22:41:57,162 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) [2021-10-13 22:41:57,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 22:41:57,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-10-13 22:41:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:57,162 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 22:41:57,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-10-13 22:41:57,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 22:41:57,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 22:41:57,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:57,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:57,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:41:57,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 22:41:57,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:57,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:57,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:41:57,171 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:41:57,171 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:41:57,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:41:57 BasicIcfg [2021-10-13 22:41:57,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:41:57,174 INFO L168 Benchmark]: Toolchain (without parser) took 1927.33 ms. Allocated memory is still 179.3 MB. Free memory was 130.2 MB in the beginning and 116.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:57,174 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 179.3 MB. Free memory was 148.5 MB in the beginning and 148.4 MB in the end (delta: 100.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:41:57,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.88 ms. Allocated memory is still 179.3 MB. Free memory was 129.9 MB in the beginning and 150.0 MB in the end (delta: -20.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:57,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.76 ms. Allocated memory is still 179.3 MB. Free memory was 150.0 MB in the beginning and 148.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:57,176 INFO L168 Benchmark]: Boogie Preprocessor took 34.23 ms. Allocated memory is still 179.3 MB. Free memory was 148.0 MB in the beginning and 147.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:57,177 INFO L168 Benchmark]: RCFGBuilder took 374.53 ms. Allocated memory is still 179.3 MB. Free memory was 147.0 MB in the beginning and 135.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:57,177 INFO L168 Benchmark]: TraceAbstraction took 1046.63 ms. Allocated memory is still 179.3 MB. Free memory was 135.0 MB in the beginning and 116.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:57,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 179.3 MB. Free memory was 148.5 MB in the beginning and 148.4 MB in the end (delta: 100.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 409.88 ms. Allocated memory is still 179.3 MB. Free memory was 129.9 MB in the beginning and 150.0 MB in the end (delta: -20.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.76 ms. Allocated memory is still 179.3 MB. Free memory was 150.0 MB in the beginning and 148.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.23 ms. Allocated memory is still 179.3 MB. Free memory was 148.0 MB in the beginning and 147.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 374.53 ms. Allocated memory is still 179.3 MB. Free memory was 147.0 MB in the beginning and 135.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1046.63 ms. Allocated memory is still 179.3 MB. Free memory was 135.0 MB in the beginning and 116.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 701]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 692]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 95 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 947.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 17.4ms, AutomataDifference: 208.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 302 SDtfs, 99 SDslu, 170 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=697occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 117.0ms AutomataMinimizationTime, 5 MinimizatonAttempts, 57 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.6ms SsaConstructionTime, 95.1ms SatisfiabilityAnalysisTime, 265.7ms InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 22:41:57,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...