./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/McCarthy91-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/recursive/McCarthy91-1.c -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 a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 22:47:19,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 22:47:19,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 22:47:19,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 22:47:19,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 22:47:19,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 22:47:19,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 22:47:19,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 22:47:19,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 22:47:19,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 22:47:19,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 22:47:19,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 22:47:19,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 22:47:19,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 22:47:19,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 22:47:19,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 22:47:19,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 22:47:19,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 22:47:19,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 22:47:19,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 22:47:19,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 22:47:19,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 22:47:19,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 22:47:19,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 22:47:19,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 22:47:19,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 22:47:19,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 22:47:19,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 22:47:19,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 22:47:19,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 22:47:19,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 22:47:19,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 22:47:19,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 22:47:19,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 22:47:19,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 22:47:19,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 22:47:19,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 22:47:19,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 22:47:19,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 22:47:19,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 22:47:19,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 22:47:19,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 22:47:19,241 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 22:47:19,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 22:47:19,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 22:47:19,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 22:47:19,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 22:47:19,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 22:47:19,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 22:47:19,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 22:47:19,243 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 22:47:19,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 22:47:19,243 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 22:47:19,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 22:47:19,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 22:47:19,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 22:47:19,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 22:47:19,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 22:47:19,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 22:47:19,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 22:47:19,245 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 22:47:19,245 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 22:47:19,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 22:47:19,245 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 22:47:19,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 22:47:19,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 22:47:19,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 22:47:19,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 22:47:19,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 22:47:19,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 22:47:19,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 22:47:19,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 22:47:19,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 22:47:19,247 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2023-02-18 22:47:19,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 22:47:19,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 22:47:19,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 22:47:19,489 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 22:47:19,490 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 22:47:19,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-1.c [2023-02-18 22:47:20,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 22:47:20,551 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 22:47:20,552 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2023-02-18 22:47:20,556 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df635cb9/7a4cca7499494c05a2b373ed75fabe54/FLAGc86b1f4a1 [2023-02-18 22:47:20,567 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df635cb9/7a4cca7499494c05a2b373ed75fabe54 [2023-02-18 22:47:20,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 22:47:20,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 22:47:20,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 22:47:20,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 22:47:20,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 22:47:20,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338798b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20, skipping insertion in model container [2023-02-18 22:47:20,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 22:47:20,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 22:47:20,671 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2023-02-18 22:47:20,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 22:47:20,678 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 22:47:20,689 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2023-02-18 22:47:20,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 22:47:20,698 INFO L208 MainTranslator]: Completed translation [2023-02-18 22:47:20,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20 WrapperNode [2023-02-18 22:47:20,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 22:47:20,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 22:47:20,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 22:47:20,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 22:47:20,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,716 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-02-18 22:47:20,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 22:47:20,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 22:47:20,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 22:47:20,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 22:47:20,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 22:47:20,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 22:47:20,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 22:47:20,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 22:47:20,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (1/1) ... [2023-02-18 22:47:20,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 22:47:20,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 22:47:20,754 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) [2023-02-18 22:47:20,759 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 [2023-02-18 22:47:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 22:47:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 22:47:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 22:47:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 22:47:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2023-02-18 22:47:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2023-02-18 22:47:20,817 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 22:47:20,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 22:47:20,898 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 22:47:20,902 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 22:47:20,902 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 22:47:20,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:47:20 BoogieIcfgContainer [2023-02-18 22:47:20,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 22:47:20,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 22:47:20,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 22:47:20,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 22:47:20,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 10:47:20" (1/3) ... [2023-02-18 22:47:20,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ffe094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 10:47:20, skipping insertion in model container [2023-02-18 22:47:20,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:47:20" (2/3) ... [2023-02-18 22:47:20,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ffe094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 10:47:20, skipping insertion in model container [2023-02-18 22:47:20,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:47:20" (3/3) ... [2023-02-18 22:47:20,910 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2023-02-18 22:47:20,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 22:47:20,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-18 22:47:20,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 22:47:20,997 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34f38b50, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 22:47:20,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-18 22:47:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 22:47:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 22:47:21,004 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 890872146, now seen corresponding path program 1 times [2023-02-18 22:47:21,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789993477] [2023-02-18 22:47:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:21,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789993477] [2023-02-18 22:47:21,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789993477] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 22:47:21,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85970968] [2023-02-18 22:47:21,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:47:21,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:47:21,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:47:21,146 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,175 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2023-02-18 22:47:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:47:21,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 22:47:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,182 INFO L225 Difference]: With dead ends: 37 [2023-02-18 22:47:21,182 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 22:47:21,184 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 [2023-02-18 22:47:21,186 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:21,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:47:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 22:47:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2023-02-18 22:47:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 22:47:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-02-18 22:47:21,210 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 6 [2023-02-18 22:47:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:21,210 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-02-18 22:47:21,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-02-18 22:47:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 22:47:21,211 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 22:47:21,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,212 INFO L85 PathProgramCache]: Analyzing trace with hash 890872306, now seen corresponding path program 1 times [2023-02-18 22:47:21,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977839450] [2023-02-18 22:47:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:21,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977839450] [2023-02-18 22:47:21,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977839450] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 22:47:21,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261351950] [2023-02-18 22:47:21,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 22:47:21,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 22:47:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 22:47:21,270 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,334 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2023-02-18 22:47:21,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 22:47:21,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 22:47:21,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,335 INFO L225 Difference]: With dead ends: 42 [2023-02-18 22:47:21,335 INFO L226 Difference]: Without dead ends: 41 [2023-02-18 22:47:21,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 22:47:21,337 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 32 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:21,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 42 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 22:47:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-18 22:47:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2023-02-18 22:47:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 22:47:21,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2023-02-18 22:47:21,343 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 6 [2023-02-18 22:47:21,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:21,344 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2023-02-18 22:47:21,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,344 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2023-02-18 22:47:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 22:47:21,345 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 22:47:21,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1847232819, now seen corresponding path program 1 times [2023-02-18 22:47:21,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072805607] [2023-02-18 22:47:21,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:21,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072805607] [2023-02-18 22:47:21,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072805607] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 22:47:21,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181183360] [2023-02-18 22:47:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 22:47:21,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 22:47:21,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 22:47:21,394 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,492 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2023-02-18 22:47:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 22:47:21,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 22:47:21,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,494 INFO L225 Difference]: With dead ends: 55 [2023-02-18 22:47:21,494 INFO L226 Difference]: Without dead ends: 52 [2023-02-18 22:47:21,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 22:47:21,495 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:21,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 49 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 22:47:21,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-18 22:47:21,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2023-02-18 22:47:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 36 states have internal predecessors, (42), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 22:47:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2023-02-18 22:47:21,516 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 7 [2023-02-18 22:47:21,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:21,516 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2023-02-18 22:47:21,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,517 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2023-02-18 22:47:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 22:47:21,518 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 22:47:21,519 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1847237784, now seen corresponding path program 1 times [2023-02-18 22:47:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503910308] [2023-02-18 22:47:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:21,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503910308] [2023-02-18 22:47:21,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503910308] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 22:47:21,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280810425] [2023-02-18 22:47:21,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:47:21,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:47:21,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:47:21,559 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,586 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2023-02-18 22:47:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:47:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 22:47:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,588 INFO L225 Difference]: With dead ends: 53 [2023-02-18 22:47:21,588 INFO L226 Difference]: Without dead ends: 52 [2023-02-18 22:47:21,588 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 [2023-02-18 22:47:21,589 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:21,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:47:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-18 22:47:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2023-02-18 22:47:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 35 states have internal predecessors, (39), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 22:47:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2023-02-18 22:47:21,598 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 7 [2023-02-18 22:47:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:21,599 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2023-02-18 22:47:21,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2023-02-18 22:47:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 22:47:21,600 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,600 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 22:47:21,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1909967585, now seen corresponding path program 1 times [2023-02-18 22:47:21,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152342452] [2023-02-18 22:47:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:21,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152342452] [2023-02-18 22:47:21,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152342452] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 22:47:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684140347] [2023-02-18 22:47:21,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 22:47:21,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 22:47:21,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-18 22:47:21,643 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,703 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2023-02-18 22:47:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 22:47:21,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 22:47:21,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,708 INFO L225 Difference]: With dead ends: 68 [2023-02-18 22:47:21,708 INFO L226 Difference]: Without dead ends: 67 [2023-02-18 22:47:21,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-18 22:47:21,709 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:21,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 73 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:47:21,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-02-18 22:47:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2023-02-18 22:47:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 44 states have internal predecessors, (49), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-18 22:47:21,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2023-02-18 22:47:21,731 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 12 [2023-02-18 22:47:21,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:21,732 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2023-02-18 22:47:21,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:47:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2023-02-18 22:47:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 22:47:21,733 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 22:47:21,736 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1031924764, now seen corresponding path program 1 times [2023-02-18 22:47:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277319242] [2023-02-18 22:47:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 22:47:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:21,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277319242] [2023-02-18 22:47:21,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277319242] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:47:21,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804898668] [2023-02-18 22:47:21,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 22:47:21,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 22:47:21,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 22:47:21,797 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 22:47:21,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,813 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2023-02-18 22:47:21,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 22:47:21,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-18 22:47:21,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,815 INFO L225 Difference]: With dead ends: 58 [2023-02-18 22:47:21,815 INFO L226 Difference]: Without dead ends: 48 [2023-02-18 22:47:21,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 22:47:21,816 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:21,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:47:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-18 22:47:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-02-18 22:47:21,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 22:47:21,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2023-02-18 22:47:21,830 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 13 [2023-02-18 22:47:21,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:21,830 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2023-02-18 22:47:21,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 22:47:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2023-02-18 22:47:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 22:47:21,831 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:21,831 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:21,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 22:47:21,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:21,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:21,831 INFO L85 PathProgramCache]: Analyzing trace with hash -865388139, now seen corresponding path program 1 times [2023-02-18 22:47:21,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:21,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390213371] [2023-02-18 22:47:21,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:21,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 22:47:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 22:47:21,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:21,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390213371] [2023-02-18 22:47:21,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390213371] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:21,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:21,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 22:47:21,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817438884] [2023-02-18 22:47:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:21,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 22:47:21,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:21,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 22:47:21,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-02-18 22:47:21,900 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 22:47:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:21,989 INFO L93 Difference]: Finished difference Result 101 states and 130 transitions. [2023-02-18 22:47:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 22:47:21,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-02-18 22:47:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:21,993 INFO L225 Difference]: With dead ends: 101 [2023-02-18 22:47:21,994 INFO L226 Difference]: Without dead ends: 100 [2023-02-18 22:47:21,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-02-18 22:47:21,999 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 29 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:22,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 62 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 22:47:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-02-18 22:47:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2023-02-18 22:47:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 66 states have internal predecessors, (70), 19 states have call successors, (19), 6 states have call predecessors, (19), 8 states have return successors, (22), 17 states have call predecessors, (22), 16 states have call successors, (22) [2023-02-18 22:47:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 111 transitions. [2023-02-18 22:47:22,025 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 111 transitions. Word has length 19 [2023-02-18 22:47:22,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:22,025 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 111 transitions. [2023-02-18 22:47:22,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 22:47:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 111 transitions. [2023-02-18 22:47:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 22:47:22,026 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:22,026 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:22,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 22:47:22,027 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:22,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:22,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1057233424, now seen corresponding path program 1 times [2023-02-18 22:47:22,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:22,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013888218] [2023-02-18 22:47:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 22:47:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 22:47:22,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013888218] [2023-02-18 22:47:22,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013888218] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 22:47:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2699848] [2023-02-18 22:47:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:22,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 22:47:22,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 22:47:22,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 22:47:22,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 22:47:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 22:47:22,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 22:47:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:22,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 22:47:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:47:22,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2699848] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 22:47:22,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 22:47:22,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 22 [2023-02-18 22:47:22,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925613311] [2023-02-18 22:47:22,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 22:47:22,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-18 22:47:22,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-18 22:47:22,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-02-18 22:47:22,393 INFO L87 Difference]: Start difference. First operand 90 states and 111 transitions. Second operand has 23 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 22:47:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:22,568 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2023-02-18 22:47:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-18 22:47:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2023-02-18 22:47:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:22,571 INFO L225 Difference]: With dead ends: 99 [2023-02-18 22:47:22,571 INFO L226 Difference]: Without dead ends: 98 [2023-02-18 22:47:22,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=287, Invalid=835, Unknown=0, NotChecked=0, Total=1122 [2023-02-18 22:47:22,573 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 89 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:22,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 46 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 22:47:22,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-02-18 22:47:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2023-02-18 22:47:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 65 states have internal predecessors, (68), 19 states have call successors, (19), 6 states have call predecessors, (19), 8 states have return successors, (22), 17 states have call predecessors, (22), 16 states have call successors, (22) [2023-02-18 22:47:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2023-02-18 22:47:22,591 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2023-02-18 22:47:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:22,592 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2023-02-18 22:47:22,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 22:47:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2023-02-18 22:47:22,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-18 22:47:22,593 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:47:22,596 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:22,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 22:47:22,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 22:47:22,799 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 22:47:22,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:47:22,799 INFO L85 PathProgramCache]: Analyzing trace with hash -742525968, now seen corresponding path program 1 times [2023-02-18 22:47:22,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:47:22,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034397020] [2023-02-18 22:47:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:47:22,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:47:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 22:47:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 22:47:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 22:47:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:47:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-18 22:47:22,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:47:22,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034397020] [2023-02-18 22:47:22,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034397020] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:47:22,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:47:22,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 22:47:22,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951895089] [2023-02-18 22:47:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:47:22,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 22:47:22,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:47:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 22:47:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-18 22:47:22,886 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 22:47:22,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:47:22,959 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2023-02-18 22:47:22,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 22:47:22,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-02-18 22:47:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:47:22,960 INFO L225 Difference]: With dead ends: 93 [2023-02-18 22:47:22,960 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 22:47:22,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-02-18 22:47:22,963 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:47:22,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 60 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:47:22,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 22:47:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 22:47:22,964 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) [2023-02-18 22:47:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 22:47:22,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2023-02-18 22:47:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:47:22,964 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 22:47:22,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 22:47:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 22:47:22,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 22:47:22,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-02-18 22:47:22,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-02-18 22:47:22,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-02-18 22:47:22,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-02-18 22:47:22,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-02-18 22:47:22,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-02-18 22:47:22,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-18 22:47:22,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 22:47:22,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 22:47:22,976 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,976 INFO L899 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-02-18 22:47:22,977 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 22:47:22,978 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-02-18 22:47:22,978 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-02-18 22:47:22,978 INFO L902 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: true [2023-02-18 22:47:22,978 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-02-18 22:47:22,978 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-02-18 22:47:22,978 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-18 22:47:22,979 INFO L895 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (let ((.cse4 (= |f91_#in~x| f91_~x)) (.cse6 (<= f91_~x 100)) (.cse11 (<= 0 (+ f91_~x (- 91)))) (.cse7 (<= f91_~x 2147483647)) (.cse8 (<= |f91_#in~x| 101)) (.cse12 (<= 0 (+ |f91_#in~x| (- 91)))) (.cse2 (<= |f91_#in~x| 2147483647)) (.cse9 (<= |f91_#in~x| 111)) (.cse3 (<= 0 (+ |f91_#in~x| 2147483648)))) (let ((.cse5 (<= 0 (+ f91_~x 2147483648))) (.cse1 (not .cse3)) (.cse10 (not .cse9)) (.cse0 (not .cse2)) (.cse13 (not .cse12)) (.cse14 (and .cse4 .cse6 .cse11 .cse7 .cse12 .cse8))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) .cse10 .cse0 .cse1) (or (and .cse4 .cse6 .cse11 .cse7 .cse12 .cse8 .cse9) .cse13 .cse10 .cse0) (or .cse13 (not .cse8) .cse14) (or (not (<= |f91_#in~x| 2147483648)) .cse13 .cse14)))) [2023-02-18 22:47:22,979 INFO L899 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2023-02-18 22:47:22,979 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2023-02-18 22:47:22,979 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-02-18 22:47:22,979 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-02-18 22:47:22,980 INFO L895 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (let ((.cse16 (<= 0 (+ |f91_#in~x| 2147483648))) (.cse15 (<= |f91_#in~x| 2147483647)) (.cse10 (<= |f91_#in~x| 111)) (.cse11 (<= |f91_#t~ret4| 101)) (.cse3 (= |f91_#in~x| f91_~x)) (.cse4 (<= f91_~x 100)) (.cse5 (<= 0 (+ f91_~x (- 91)))) (.cse6 (<= f91_~x 2147483647)) (.cse7 (<= 0 (+ |f91_#in~x| (- 91)))) (.cse9 (<= |f91_#in~x| 101)) (.cse8 (<= 0 (+ |f91_#t~ret4| (- 91)))) (.cse12 (<= (+ |f91_#t~ret4| (- 1)) 2147483647))) (let ((.cse13 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse8 .cse12)) (.cse0 (not .cse7)) (.cse14 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11)) (.cse1 (not .cse10)) (.cse2 (not .cse15)) (.cse17 (<= 0 (+ f91_~x 2147483648))) (.cse18 (not .cse16))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse8 .cse10 .cse12)) (or .cse13 (not (<= |f91_#in~x| 2147483648)) .cse0 .cse14) (or .cse13 .cse0 (not .cse9) .cse14) (or (and .cse15 .cse16 .cse3 .cse17 .cse4 .cse6 .cse8 .cse9 .cse11) (and .cse15 .cse16 .cse3 .cse17 .cse4 .cse6 .cse9 .cse8 .cse12) .cse2 .cse18) (or .cse1 (and .cse16 .cse3 .cse17 .cse4 .cse6 .cse8 .cse9 .cse10 .cse11) .cse2 (and .cse16 .cse3 .cse17 .cse4 .cse6 .cse9 .cse8 .cse10 .cse12) .cse18)))) [2023-02-18 22:47:22,980 INFO L899 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2023-02-18 22:47:22,980 INFO L899 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-18 22:47:22,980 INFO L899 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2023-02-18 22:47:22,980 INFO L899 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-18 22:47:22,980 INFO L899 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-18 22:47:22,980 INFO L899 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-18 22:47:22,981 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 17 23) the Hoare annotation is: true [2023-02-18 22:47:22,983 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:47:22,984 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 22:47:22,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 10:47:22 BoogieIcfgContainer [2023-02-18 22:47:22,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 22:47:22,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 22:47:22,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 22:47:22,991 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 22:47:22,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:47:20" (3/4) ... [2023-02-18 22:47:22,993 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 22:47:22,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2023-02-18 22:47:23,000 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-18 22:47:23,000 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 22:47:23,000 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 22:47:23,000 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 22:47:23,021 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 22:47:23,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 22:47:23,022 INFO L158 Benchmark]: Toolchain (without parser) took 2451.41ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 111.8MB in the beginning and 98.3MB in the end (delta: 13.5MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,022 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 22:47:23,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 127.39ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 101.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.58ms. Allocated memory is still 144.7MB. Free memory was 101.9MB in the beginning and 100.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,022 INFO L158 Benchmark]: Boogie Preprocessor took 10.83ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 99.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,023 INFO L158 Benchmark]: RCFGBuilder took 174.34ms. Allocated memory is still 144.7MB. Free memory was 99.2MB in the beginning and 89.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,023 INFO L158 Benchmark]: TraceAbstraction took 2084.75ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 88.7MB in the beginning and 101.4MB in the end (delta: -12.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,023 INFO L158 Benchmark]: Witness Printer took 31.06ms. Allocated memory is still 174.1MB. Free memory was 101.4MB in the beginning and 98.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 22:47:23,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 127.39ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 101.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.58ms. Allocated memory is still 144.7MB. Free memory was 101.9MB in the beginning and 100.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.83ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 99.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 174.34ms. Allocated memory is still 144.7MB. Free memory was 99.2MB in the beginning and 89.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2084.75ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 88.7MB in the beginning and 101.4MB in the end (delta: -12.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 31.06ms. Allocated memory is still 174.1MB. Free memory was 101.4MB in the beginning and 98.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 237 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 481 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 302 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 508 IncrementalHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 179 mSDtfsCounter, 508 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=7, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 45 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 59 PreInvPairs, 79 NumberOfFragments, 601 HoareAnnotationTreeSize, 59 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 SizeOfPredicates, 4 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 54/68 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 6 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-18 22:47:23,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE