./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:26:53,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:26:53,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:26:53,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:26:53,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:26:53,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:26:53,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:26:53,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:26:53,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:26:53,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:26:53,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:26:53,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:26:53,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:26:53,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:26:53,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:26:53,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:26:53,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:26:53,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:26:53,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:26:53,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:26:53,152 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:26:53,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:26:53,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:26:53,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:26:53,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:26:53,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:26:53,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:26:53,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:26:53,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:26:53,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:26:53,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:26:53,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:26:53,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:26:53,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:26:53,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:26:53,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:26:53,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:26:53,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:26:53,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:26:53,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:26:53,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:26:53,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:26:53,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:26:53,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:26:53,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:26:53,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:26:53,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:26:53,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:26:53,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:26:53,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:26:53,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:26:53,194 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:26:53,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:26:53,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:26:53,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:26:53,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:26:53,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:26:53,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:26:53,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:26:53,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:26:53,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:26:53,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:26:53,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:26:53,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:26:53,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-07-13 02:26:53,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:26:53,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:26:53,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:26:53,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:26:53,376 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:26:53,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-07-13 02:26:53,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ce0f1006/081f0e725e674c79bd1c519488812539/FLAGf47ae0eb1 [2022-07-13 02:26:53,834 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:26:53,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-07-13 02:26:53,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ce0f1006/081f0e725e674c79bd1c519488812539/FLAGf47ae0eb1 [2022-07-13 02:26:53,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ce0f1006/081f0e725e674c79bd1c519488812539 [2022-07-13 02:26:53,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:26:53,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:26:53,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:26:53,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:26:53,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:26:53,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:26:53" (1/1) ... [2022-07-13 02:26:53,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65cc7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:53, skipping insertion in model container [2022-07-13 02:26:53,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:26:53" (1/1) ... [2022-07-13 02:26:53,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:26:53,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:26:54,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-07-13 02:26:54,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:26:54,157 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:26:54,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-07-13 02:26:54,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:26:54,242 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:26:54,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54 WrapperNode [2022-07-13 02:26:54,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:26:54,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:26:54,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:26:54,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:26:54,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,294 INFO L137 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2022-07-13 02:26:54,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:26:54,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:26:54,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:26:54,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:26:54,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:26:54,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:26:54,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:26:54,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:26:54,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (1/1) ... [2022-07-13 02:26:54,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:26:54,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:26:54,369 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) [2022-07-13 02:26:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:26:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-13 02:26:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-13 02:26:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:26:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:26:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:26:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:26:54,387 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 [2022-07-13 02:26:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:26:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:26:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:26:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:26:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:26:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:26:54,401 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:26:54,525 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:26:54,526 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:26:54,699 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:26:54,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:26:54,707 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 02:26:54,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:26:54 BoogieIcfgContainer [2022-07-13 02:26:54,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:26:54,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:26:54,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:26:54,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:26:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:26:53" (1/3) ... [2022-07-13 02:26:54,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c169a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:26:54, skipping insertion in model container [2022-07-13 02:26:54,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:26:54" (2/3) ... [2022-07-13 02:26:54,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c169a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:26:54, skipping insertion in model container [2022-07-13 02:26:54,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:26:54" (3/3) ... [2022-07-13 02:26:54,715 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-07-13 02:26:54,721 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:26:54,727 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:26:54,727 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-13 02:26:54,727 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:26:54,810 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 02:26:54,857 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:26:54,865 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 171 transitions, 358 flow [2022-07-13 02:26:54,870 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 171 transitions, 358 flow [2022-07-13 02:26:54,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 171 transitions, 358 flow [2022-07-13 02:26:54,941 INFO L129 PetriNetUnfolder]: 4/169 cut-off events. [2022-07-13 02:26:54,942 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 02:26:54,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 4/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 189 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-07-13 02:26:54,951 INFO L116 LiptonReduction]: Number of co-enabled transitions 7748 [2022-07-13 02:26:58,890 INFO L131 LiptonReduction]: Checked pairs total: 24268 [2022-07-13 02:26:58,891 INFO L133 LiptonReduction]: Total number of compositions: 160 [2022-07-13 02:26:58,897 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions, 122 flow [2022-07-13 02:26:58,994 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2768 states, 2742 states have (on average 2.9642596644784827) internal successors, (8128), 2767 states have internal predecessors, (8128), 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) [2022-07-13 02:26:59,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:26:59,016 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5c023529, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@761d165a [2022-07-13 02:26:59,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-07-13 02:26:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 2768 states, 2742 states have (on average 2.9642596644784827) internal successors, (8128), 2767 states have internal predecessors, (8128), 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) [2022-07-13 02:26:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:26:59,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:59,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:26:59,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:26:59,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:59,033 INFO L85 PathProgramCache]: Analyzing trace with hash 18407573, now seen corresponding path program 1 times [2022-07-13 02:26:59,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:59,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856974226] [2022-07-13 02:26:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:59,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:26:59,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:59,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856974226] [2022-07-13 02:26:59,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856974226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:59,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:59,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:26:59,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122922504] [2022-07-13 02:26:59,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:59,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:26:59,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:26:59,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,261 INFO L87 Difference]: Start difference. First operand has 2768 states, 2742 states have (on average 2.9642596644784827) internal successors, (8128), 2767 states have internal predecessors, (8128), 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) [2022-07-13 02:26:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:59,381 INFO L93 Difference]: Finished difference Result 2432 states and 6613 transitions. [2022-07-13 02:26:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:26:59,383 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 [2022-07-13 02:26:59,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:59,404 INFO L225 Difference]: With dead ends: 2432 [2022-07-13 02:26:59,404 INFO L226 Difference]: Without dead ends: 2300 [2022-07-13 02:26:59,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,407 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:59,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 14 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:26:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2022-07-13 02:26:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2201. [2022-07-13 02:26:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2187 states have (on average 2.752629172382259) internal successors, (6020), 2200 states have internal predecessors, (6020), 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) [2022-07-13 02:26:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 6020 transitions. [2022-07-13 02:26:59,516 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 6020 transitions. Word has length 4 [2022-07-13 02:26:59,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:59,517 INFO L495 AbstractCegarLoop]: Abstraction has 2201 states and 6020 transitions. [2022-07-13 02:26:59,517 INFO L496 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) [2022-07-13 02:26:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 6020 transitions. [2022-07-13 02:26:59,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:26:59,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:59,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:26:59,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:26:59,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:26:59,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash 18407552, now seen corresponding path program 1 times [2022-07-13 02:26:59,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:59,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451722358] [2022-07-13 02:26:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:26:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:59,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451722358] [2022-07-13 02:26:59,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451722358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:59,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:59,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:26:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674609715] [2022-07-13 02:26:59,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:59,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:26:59,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:26:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,552 INFO L87 Difference]: Start difference. First operand 2201 states and 6020 transitions. 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) [2022-07-13 02:26:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:59,624 INFO L93 Difference]: Finished difference Result 2221 states and 5918 transitions. [2022-07-13 02:26:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:26:59,625 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 [2022-07-13 02:26:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:59,633 INFO L225 Difference]: With dead ends: 2221 [2022-07-13 02:26:59,637 INFO L226 Difference]: Without dead ends: 2197 [2022-07-13 02:26:59,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,639 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:59,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 18 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:26:59,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-07-13 02:26:59,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2032. [2022-07-13 02:26:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 2023 states have (on average 2.725160652496293) internal successors, (5513), 2031 states have internal predecessors, (5513), 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) [2022-07-13 02:26:59,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 5513 transitions. [2022-07-13 02:26:59,692 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 5513 transitions. Word has length 4 [2022-07-13 02:26:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:59,692 INFO L495 AbstractCegarLoop]: Abstraction has 2032 states and 5513 transitions. [2022-07-13 02:26:59,693 INFO L496 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) [2022-07-13 02:26:59,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 5513 transitions. [2022-07-13 02:26:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:26:59,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:59,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:26:59,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:26:59,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:26:59,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:59,695 INFO L85 PathProgramCache]: Analyzing trace with hash 510173543, now seen corresponding path program 1 times [2022-07-13 02:26:59,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:59,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217491152] [2022-07-13 02:26:59,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:59,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:26:59,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:59,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217491152] [2022-07-13 02:26:59,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217491152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:59,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:59,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:26:59,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451911278] [2022-07-13 02:26:59,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:59,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:26:59,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:59,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:26:59,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,725 INFO L87 Difference]: Start difference. First operand 2032 states and 5513 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:26:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:59,790 INFO L93 Difference]: Finished difference Result 2256 states and 6015 transitions. [2022-07-13 02:26:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:26:59,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 02:26:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:59,800 INFO L225 Difference]: With dead ends: 2256 [2022-07-13 02:26:59,801 INFO L226 Difference]: Without dead ends: 2256 [2022-07-13 02:26:59,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,802 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:59,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 16 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:26:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2022-07-13 02:26:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2010. [2022-07-13 02:26:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 2003 states have (on average 2.7348976535197203) internal successors, (5478), 2009 states have internal predecessors, (5478), 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) [2022-07-13 02:26:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 5478 transitions. [2022-07-13 02:26:59,883 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 5478 transitions. Word has length 6 [2022-07-13 02:26:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:59,884 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 5478 transitions. [2022-07-13 02:26:59,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:26:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 5478 transitions. [2022-07-13 02:26:59,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:26:59,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:59,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:26:59,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:26:59,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:26:59,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:59,886 INFO L85 PathProgramCache]: Analyzing trace with hash 510173545, now seen corresponding path program 1 times [2022-07-13 02:26:59,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:59,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397388443] [2022-07-13 02:26:59,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:59,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:26:59,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:59,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397388443] [2022-07-13 02:26:59,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397388443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:59,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:59,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:26:59,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501671279] [2022-07-13 02:26:59,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:59,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:26:59,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:59,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:26:59,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,924 INFO L87 Difference]: Start difference. First operand 2010 states and 5478 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:26:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:59,981 INFO L93 Difference]: Finished difference Result 2078 states and 5434 transitions. [2022-07-13 02:26:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:26:59,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 02:26:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:59,990 INFO L225 Difference]: With dead ends: 2078 [2022-07-13 02:26:59,990 INFO L226 Difference]: Without dead ends: 2006 [2022-07-13 02:26:59,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:59,991 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:59,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:26:59,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2022-07-13 02:27:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1760. [2022-07-13 02:27:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1755 states have (on average 2.69002849002849) internal successors, (4721), 1759 states have internal predecessors, (4721), 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) [2022-07-13 02:27:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 4721 transitions. [2022-07-13 02:27:00,033 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 4721 transitions. Word has length 6 [2022-07-13 02:27:00,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:00,033 INFO L495 AbstractCegarLoop]: Abstraction has 1760 states and 4721 transitions. [2022-07-13 02:27:00,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:27:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 4721 transitions. [2022-07-13 02:27:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:27:00,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:00,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:00,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:27:00,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:27:00,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1377781113, now seen corresponding path program 1 times [2022-07-13 02:27:00,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:00,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065700444] [2022-07-13 02:27:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:00,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:00,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:00,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065700444] [2022-07-13 02:27:00,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065700444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:00,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:00,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:27:00,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223060270] [2022-07-13 02:27:00,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:00,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:27:00,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:00,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:27:00,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:00,061 INFO L87 Difference]: Start difference. First operand 1760 states and 4721 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-07-13 02:27:00,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:00,097 INFO L93 Difference]: Finished difference Result 1557 states and 4144 transitions. [2022-07-13 02:27:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:27:00,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-07-13 02:27:00,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:00,102 INFO L225 Difference]: With dead ends: 1557 [2022-07-13 02:27:00,102 INFO L226 Difference]: Without dead ends: 1147 [2022-07-13 02:27:00,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:27:00,103 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:00,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 8 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:27:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-07-13 02:27:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1105. [2022-07-13 02:27:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1103 states have (on average 2.6491387126019945) internal successors, (2922), 1104 states have internal predecessors, (2922), 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) [2022-07-13 02:27:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 2922 transitions. [2022-07-13 02:27:00,137 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 2922 transitions. Word has length 7 [2022-07-13 02:27:00,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:00,138 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 2922 transitions. [2022-07-13 02:27:00,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-07-13 02:27:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 2922 transitions. [2022-07-13 02:27:00,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:27:00,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:00,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:00,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:27:00,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:27:00,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:00,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1308721018, now seen corresponding path program 1 times [2022-07-13 02:27:00,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200990181] [2022-07-13 02:27:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:00,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:00,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:00,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200990181] [2022-07-13 02:27:00,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200990181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:00,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:00,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:27:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147402539] [2022-07-13 02:27:00,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:00,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:27:00,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:27:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:27:00,174 INFO L87 Difference]: Start difference. First operand 1105 states and 2922 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-07-13 02:27:00,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:00,261 INFO L93 Difference]: Finished difference Result 950 states and 2485 transitions. [2022-07-13 02:27:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:27:00,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2022-07-13 02:27:00,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:00,265 INFO L225 Difference]: With dead ends: 950 [2022-07-13 02:27:00,266 INFO L226 Difference]: Without dead ends: 950 [2022-07-13 02:27:00,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:27:00,268 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 132 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:00,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 32 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:00,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-07-13 02:27:00,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 950. [2022-07-13 02:27:00,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 2.61854583772392) internal successors, (2485), 949 states have internal predecessors, (2485), 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) [2022-07-13 02:27:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2485 transitions. [2022-07-13 02:27:00,287 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2485 transitions. Word has length 9 [2022-07-13 02:27:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:00,287 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 2485 transitions. [2022-07-13 02:27:00,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-07-13 02:27:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2485 transitions. [2022-07-13 02:27:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:27:00,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:27:00,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:00,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:27:00,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-07-13 02:27:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:27:00,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1308720962, now seen corresponding path program 1 times [2022-07-13 02:27:00,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:27:00,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565801403] [2022-07-13 02:27:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:27:00,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:27:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:27:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:27:00,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:27:00,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565801403] [2022-07-13 02:27:00,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565801403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:27:00,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:27:00,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:27:00,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763761693] [2022-07-13 02:27:00,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:27:00,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:27:00,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:27:00,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:27:00,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:27:00,336 INFO L87 Difference]: Start difference. First operand 950 states and 2485 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-07-13 02:27:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:27:00,420 INFO L93 Difference]: Finished difference Result 795 states and 2048 transitions. [2022-07-13 02:27:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:27:00,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2022-07-13 02:27:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:27:00,421 INFO L225 Difference]: With dead ends: 795 [2022-07-13 02:27:00,421 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:27:00,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:27:00,422 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:27:00,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 56 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:27:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:27:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:27:00,423 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) [2022-07-13 02:27:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:27:00,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-07-13 02:27:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:27:00,424 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:27:00,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-07-13 02:27:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:27:00,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:27:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-07-13 02:27:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-07-13 02:27:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-07-13 02:27:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-07-13 02:27:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2022-07-13 02:27:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2022-07-13 02:27:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-07-13 02:27:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-07-13 02:27:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-07-13 02:27:00,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-07-13 02:27:00,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-07-13 02:27:00,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-07-13 02:27:00,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-07-13 02:27:00,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-07-13 02:27:00,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-07-13 02:27:00,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-07-13 02:27:00,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-07-13 02:27:00,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-07-13 02:27:00,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:27:00,436 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:27:00,440 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:27:00,440 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:27:00,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:27:00 BasicIcfg [2022-07-13 02:27:00,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:27:00,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:27:00,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:27:00,444 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:27:00,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:26:54" (3/4) ... [2022-07-13 02:27:00,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 02:27:00,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-07-13 02:27:00,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-13 02:27:00,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-07-13 02:27:00,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 02:27:00,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 02:27:00,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 02:27:00,488 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:27:00,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:27:00,489 INFO L158 Benchmark]: Toolchain (without parser) took 6627.61ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 90.9MB in the beginning and 62.4MB in the end (delta: 28.5MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,489 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:27:00,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.30ms. Allocated memory is still 123.7MB. Free memory was 90.7MB in the beginning and 90.3MB in the end (delta: 359.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.93ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 88.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,490 INFO L158 Benchmark]: Boogie Preprocessor took 41.58ms. Allocated memory is still 123.7MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,490 INFO L158 Benchmark]: RCFGBuilder took 372.59ms. Allocated memory is still 123.7MB. Free memory was 86.1MB in the beginning and 70.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,490 INFO L158 Benchmark]: TraceAbstraction took 5732.43ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 69.3MB in the beginning and 65.5MB in the end (delta: 3.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,490 INFO L158 Benchmark]: Witness Printer took 44.16ms. Allocated memory is still 157.3MB. Free memory was 65.5MB in the beginning and 62.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 02:27:00,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.30ms. Allocated memory is still 123.7MB. Free memory was 90.7MB in the beginning and 90.3MB in the end (delta: 359.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.93ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 88.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.58ms. Allocated memory is still 123.7MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.59ms. Allocated memory is still 123.7MB. Free memory was 86.1MB in the beginning and 70.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5732.43ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 69.3MB in the beginning and 65.5MB in the end (delta: 3.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 44.16ms. Allocated memory is still 157.3MB. Free memory was 65.5MB in the beginning and 62.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 174 PlacesBefore, 57 PlacesAfterwards, 171 TransitionsBefore, 53 TransitionsAfterwards, 7748 CoEnabledTransitionPairs, 8 FixpointIterations, 47 TrivialSequentialCompositions, 97 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 1 ChoiceCompositions, 160 TotalNumberOfCompositions, 24268 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8999, positive: 8457, positive conditional: 0, positive unconditional: 8457, negative: 542, negative conditional: 0, negative unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5458, positive: 5334, positive conditional: 0, positive unconditional: 5334, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5458, positive: 5014, positive conditional: 0, positive unconditional: 5014, negative: 444, negative conditional: 0, negative unconditional: 444, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 444, positive: 320, positive conditional: 0, positive unconditional: 320, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 411, positive: 204, positive conditional: 0, positive unconditional: 204, negative: 207, negative conditional: 0, negative unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8999, positive: 3123, positive conditional: 0, positive unconditional: 3123, negative: 418, negative conditional: 0, negative unconditional: 418, unknown: 5458, unknown conditional: 0, unknown unconditional: 5458] , Statistics on independence cache: Total cache size (in pairs): 396, Positive cache size: 327, Positive conditional cache size: 0, Positive unconditional cache size: 327, Negative cache size: 69, Negative conditional cache size: 0, Negative unconditional cache size: 69 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 224 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 413 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 413 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 526 IncrementalHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 82 mSDtfsCounter, 526 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2768occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 798 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 02:27:00,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE