./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/num_conversion_2.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/bitvector/num_conversion_2.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 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:01:06,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:01:06,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:01:06,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:01:06,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:01:06,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:01:06,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:01:06,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:01:06,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:01:06,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:01:06,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:01:06,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:01:06,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:01:06,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:01:06,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:01:06,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:01:06,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:01:06,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:01:06,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:01:06,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:01:06,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:01:06,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:01:06,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:01:06,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:01:06,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:01:06,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:01:06,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:01:06,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:01:06,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:01:06,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:01:06,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:01:06,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:01:06,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:01:06,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:01:06,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:01:06,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:01:06,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:01:06,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:01:06,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:01:06,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:01:06,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:01:06,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 23:01:06,745 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:01:06,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:01:06,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:01:06,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:01:06,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:01:06,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:01:06,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:01:06,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:01:06,747 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:01:06,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:01:06,747 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 23:01:06,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:01:06,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:01:06,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 23:01:06,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:01:06,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:01:06,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:01:06,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:01:06,748 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:01:06,752 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 23:01:06,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:01:06,752 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:01:06,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:01:06,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:01:06,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:01:06,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:01:06,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:01:06,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:01:06,754 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:01:06,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:01:06,755 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:01:06,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 [2023-02-18 23:01:06,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:01:07,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:01:07,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:01:07,027 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:01:07,027 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:01:07,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_2.c [2023-02-18 23:01:08,077 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:01:08,234 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:01:08,234 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_2.c [2023-02-18 23:01:08,238 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bfa12003/e80eac02d8514df3b5758354073b1983/FLAGd1ad07be2 [2023-02-18 23:01:08,252 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bfa12003/e80eac02d8514df3b5758354073b1983 [2023-02-18 23:01:08,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:01:08,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:01:08,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:01:08,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:01:08,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:01:08,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bbdf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08, skipping insertion in model container [2023-02-18 23:01:08,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:01:08,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:01:08,406 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/bitvector/num_conversion_2.c[685,698] [2023-02-18 23:01:08,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:01:08,428 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:01:08,438 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/bitvector/num_conversion_2.c[685,698] [2023-02-18 23:01:08,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:01:08,458 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:01:08,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08 WrapperNode [2023-02-18 23:01:08,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:01:08,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:01:08,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:01:08,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:01:08,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,484 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-02-18 23:01:08,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:01:08,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:01:08,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:01:08,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:01:08,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,507 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:01:08,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:01:08,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:01:08,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:01:08,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (1/1) ... [2023-02-18 23:01:08,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:01:08,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:08,535 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 23:01:08,547 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 23:01:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:01:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:01:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:01:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 23:01:08,634 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:01:08,636 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:01:08,729 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:01:08,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:01:08,733 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:01:08,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:08 BoogieIcfgContainer [2023-02-18 23:01:08,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:01:08,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:01:08,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:01:08,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:01:08,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:01:08" (1/3) ... [2023-02-18 23:01:08,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d026f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:01:08, skipping insertion in model container [2023-02-18 23:01:08,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:08" (2/3) ... [2023-02-18 23:01:08,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d026f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:01:08, skipping insertion in model container [2023-02-18 23:01:08,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:08" (3/3) ... [2023-02-18 23:01:08,746 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2023-02-18 23:01:08,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:01:08,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-18 23:01:08,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:01:08,825 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;@56da69d0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:01:08,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-18 23:01:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 24 states have internal predecessors, (28), 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 23:01:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-18 23:01:08,858 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:08,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-18 23:01:08,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2023-02-18 23:01:08,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:08,863 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-18 23:01:08,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:08,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135788837] [2023-02-18 23:01:08,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:08,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:09,010 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 23:01:09,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:09,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135788837] [2023-02-18 23:01:09,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135788837] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:09,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:01:09,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:01:09,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163700996] [2023-02-18 23:01:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:09,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:01:09,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:01:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:09,036 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:09,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:09,086 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2023-02-18 23:01:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:01:09,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-02-18 23:01:09,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:09,103 INFO L225 Difference]: With dead ends: 33 [2023-02-18 23:01:09,104 INFO L226 Difference]: Without dead ends: 14 [2023-02-18 23:01:09,106 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 23:01:09,109 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:09,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-18 23:01:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-02-18 23:01:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 23:01:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-02-18 23:01:09,150 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2023-02-18 23:01:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-02-18 23:01:09,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-02-18 23:01:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:01:09,151 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:09,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:01:09,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:01:09,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2023-02-18 23:01:09,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-18 23:01:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:09,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805120230] [2023-02-18 23:01:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 23:01:09,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 23:01:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 23:01:09,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 23:01:09,210 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-18 23:01:09,211 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-02-18 23:01:09,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-02-18 23:01:09,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2023-02-18 23:01:09,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-02-18 23:01:09,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-02-18 23:01:09,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-02-18 23:01:09,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-02-18 23:01:09,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:01:09,216 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-18 23:01:09,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:01:09,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:01:09 BoogieIcfgContainer [2023-02-18 23:01:09,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:01:09,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:01:09,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:01:09,231 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:01:09,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:08" (3/4) ... [2023-02-18 23:01:09,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 23:01:09,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:01:09,234 INFO L158 Benchmark]: Toolchain (without parser) took 979.03ms. Allocated memory was 155.2MB in the beginning and 251.7MB in the end (delta: 96.5MB). Free memory was 106.8MB in the beginning and 216.9MB in the end (delta: -110.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:09,235 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 126.9MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:09,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.03ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 96.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 23:01:09,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.51ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 95.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:01:09,236 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:09,236 INFO L158 Benchmark]: RCFGBuilder took 225.32ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 83.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:01:09,237 INFO L158 Benchmark]: TraceAbstraction took 494.55ms. Allocated memory was 155.2MB in the beginning and 251.7MB in the end (delta: 96.5MB). Free memory was 83.0MB in the beginning and 216.9MB in the end (delta: -133.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:09,237 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 251.7MB. Free memory is still 216.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:09,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 126.9MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.03ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 96.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.51ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 95.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 225.32ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 83.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 494.55ms. Allocated memory was 155.2MB in the beginning and 251.7MB in the end (delta: 96.5MB). Free memory was 83.0MB in the beginning and 216.9MB in the end (delta: -133.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 251.7MB. Free memory is still 216.9MB. There was no memory consumed. 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 - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 31. Possible FailurePath: [L24] unsigned char x = __VERIFIER_nondet_uchar(); [L25] unsigned char y; [L26] unsigned char c; [L28] y = 0 [L29] c = 0 VAL [c=0, y=0] [L30] COND TRUE c < (unsigned char)8 VAL [c=0, y=0] [L31] ((unsigned char)1) << c VAL [c=0, y=0] - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-18 23:01:09,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/bitvector/num_conversion_2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:01:11,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:01:11,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:01:11,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:01:11,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:01:11,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:01:11,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:01:11,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:01:11,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:01:11,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:01:11,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:01:11,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:01:11,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:01:11,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:01:11,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:01:11,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:01:11,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:01:11,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:01:11,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:01:11,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:01:11,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:01:11,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:01:11,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:01:11,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:01:11,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:01:11,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:01:11,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:01:11,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:01:11,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:01:11,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:01:11,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:01:11,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:01:11,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:01:11,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:01:11,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:01:11,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:01:11,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:01:11,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:01:11,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:01:11,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:01:11,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:01:11,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-02-18 23:01:11,247 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:01:11,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:01:11,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:01:11,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:01:11,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:01:11,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:01:11,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:01:11,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:01:11,249 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:01:11,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:01:11,249 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 23:01:11,250 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:01:11,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 23:01:11,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:01:11,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:01:11,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:01:11,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:01:11,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 23:01:11,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 23:01:11,251 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:01:11,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 23:01:11,269 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 23:01:11,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:01:11,269 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:01:11,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:01:11,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:01:11,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:01:11,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:01:11,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:01:11,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:01:11,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:01:11,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:01:11,271 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 23:01:11,271 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 23:01:11,271 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:01:11,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:01:11,272 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:01:11,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:01:11,272 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 23:01:11,272 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:01:11,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 [2023-02-18 23:01:11,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:01:11,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:01:11,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:01:11,567 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:01:11,580 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:01:11,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_2.c [2023-02-18 23:01:12,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:01:12,860 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:01:12,860 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_2.c [2023-02-18 23:01:12,883 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459e3508e/3369b5bdcb9146c5a3f5927aa6f954eb/FLAG599d5cad6 [2023-02-18 23:01:12,893 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459e3508e/3369b5bdcb9146c5a3f5927aa6f954eb [2023-02-18 23:01:12,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:01:12,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:01:12,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:01:12,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:01:12,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:01:12,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:01:12" (1/1) ... [2023-02-18 23:01:12,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c85a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:12, skipping insertion in model container [2023-02-18 23:01:12,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:01:12" (1/1) ... [2023-02-18 23:01:12,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:01:12,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:01:13,007 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/bitvector/num_conversion_2.c[685,698] [2023-02-18 23:01:13,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:01:13,032 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:01:13,041 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/bitvector/num_conversion_2.c[685,698] [2023-02-18 23:01:13,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:01:13,062 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:01:13,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13 WrapperNode [2023-02-18 23:01:13,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:01:13,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:01:13,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:01:13,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:01:13,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,087 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-02-18 23:01:13,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:01:13,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:01:13,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:01:13,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:01:13,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:01:13,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:01:13,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:01:13,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:01:13,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (1/1) ... [2023-02-18 23:01:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:01:13,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:13,155 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 23:01:13,198 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 23:01:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:01:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:01:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:01:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-18 23:01:13,261 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:01:13,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:01:13,392 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:01:13,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:01:13,396 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:01:13,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:13 BoogieIcfgContainer [2023-02-18 23:01:13,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:01:13,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:01:13,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:01:13,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:01:13,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:01:12" (1/3) ... [2023-02-18 23:01:13,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac43f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:01:13, skipping insertion in model container [2023-02-18 23:01:13,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:13" (2/3) ... [2023-02-18 23:01:13,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac43f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:01:13, skipping insertion in model container [2023-02-18 23:01:13,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:13" (3/3) ... [2023-02-18 23:01:13,404 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2023-02-18 23:01:13,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:01:13,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-18 23:01:13,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:01:13,456 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;@4780a3f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:01:13,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-18 23:01:13,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 24 states have internal predecessors, (28), 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 23:01:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-18 23:01:13,464 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:13,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-18 23:01:13,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2023-02-18 23:01:13,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:13,469 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-18 23:01:13,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 23:01:13,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920981432] [2023-02-18 23:01:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:13,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 23:01:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 23:01:13,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 23:01:13,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-18 23:01:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:13,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 23:01:13,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:13,618 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 23:01:13,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:01:13,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 23:01:13,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920981432] [2023-02-18 23:01:13,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920981432] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:13,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:01:13,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:01:13,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304864342] [2023-02-18 23:01:13,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:13,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:01:13,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 23:01:13,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:01:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:13,666 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:13,712 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2023-02-18 23:01:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:01:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-02-18 23:01:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:13,723 INFO L225 Difference]: With dead ends: 44 [2023-02-18 23:01:13,723 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 23:01:13,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 23:01:13,727 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:13,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 27 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 23:01:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2023-02-18 23:01:13,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:13,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-02-18 23:01:13,749 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 4 [2023-02-18 23:01:13,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:13,750 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-02-18 23:01:13,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:13,750 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-02-18 23:01:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:01:13,751 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:13,751 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:01:13,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:13,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 23:01:13,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2023-02-18 23:01:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash -845121802, now seen corresponding path program 1 times [2023-02-18 23:01:13,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 23:01:13,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026656166] [2023-02-18 23:01:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:13,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 23:01:13,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 23:01:13,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 23:01:13,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-18 23:01:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:14,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 23:01:14,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:14,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:14,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:14,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 23:01:14,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026656166] [2023-02-18 23:01:14,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026656166] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:14,151 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 23:01:14,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-02-18 23:01:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111528204] [2023-02-18 23:01:14,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:14,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:01:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 23:01:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:01:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:01:14,154 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 23:01:14,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:14,251 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-02-18 23:01:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:01:14,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 23:01:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:14,253 INFO L225 Difference]: With dead ends: 33 [2023-02-18 23:01:14,253 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:01:14,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-02-18 23:01:14,255 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 28 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:14,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:01:14,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:01:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:01:14,258 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 23:01:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:01:14,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-02-18 23:01:14,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:14,259 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:01:14,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 23:01:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:01:14,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:01:14,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-02-18 23:01:14,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-02-18 23:01:14,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2023-02-18 23:01:14,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-02-18 23:01:14,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-02-18 23:01:14,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-02-18 23:01:14,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-02-18 23:01:14,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-02-18 23:01:14,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 23:01:14,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 35) no Hoare annotation was computed. [2023-02-18 23:01:14,489 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L902 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 41) the Hoare annotation is: true [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-02-18 23:01:14,490 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:01:14,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-02-18 23:01:14,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-02-18 23:01:14,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-02-18 23:01:14,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:01:14,491 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 37) the Hoare annotation is: (let ((.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~c~0#1|))) (let ((.cse0 (bvslt .cse3 (_ bv32 32))) (.cse2 (bvsle (_ bv0 32) .cse3))) (or (= |ULTIMATE.start_main_~c~0#1| ((_ extract 7 0) (bvadd (_ bv1 32) (_ bv0 32)))) (= |ULTIMATE.start_main_~c~0#1| (_ bv0 8)) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv1 32) .cse3))))) (and .cse0 (bvsle (_ bv0 32) .cse1) (bvslt .cse1 (_ bv32 32)) .cse2)) (and .cse0 .cse2)))) [2023-02-18 23:01:14,491 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 37) no Hoare annotation was computed. [2023-02-18 23:01:14,491 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 23:01:14,507 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-18 23:01:14,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:01:14,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:01:14 BoogieIcfgContainer [2023-02-18 23:01:14,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:01:14,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:01:14,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:01:14,527 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:01:14,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:13" (3/4) ... [2023-02-18 23:01:14,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:01:14,559 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-18 23:01:14,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 23:01:14,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 23:01:14,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:01:14,631 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:01:14,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:01:14,633 INFO L158 Benchmark]: Toolchain (without parser) took 1736.01ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 73.0MB in the end (delta: -17.8MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-02-18 23:01:14,634 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:14,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.13ms. Allocated memory is still 96.5MB. Free memory was 55.1MB in the beginning and 68.3MB in the end (delta: -13.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-18 23:01:14,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.12ms. Allocated memory is still 96.5MB. Free memory was 68.3MB in the beginning and 67.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:14,635 INFO L158 Benchmark]: Boogie Preprocessor took 36.44ms. Allocated memory is still 96.5MB. Free memory was 66.7MB in the beginning and 65.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:01:14,635 INFO L158 Benchmark]: RCFGBuilder took 272.97ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 55.5MB in the end (delta: 10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-18 23:01:14,635 INFO L158 Benchmark]: TraceAbstraction took 1127.32ms. Allocated memory is still 96.5MB. Free memory was 54.8MB in the beginning and 49.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-18 23:01:14,635 INFO L158 Benchmark]: Witness Printer took 105.08ms. Allocated memory is still 96.5MB. Free memory was 49.3MB in the beginning and 73.0MB in the end (delta: -23.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:01:14,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.13ms. Allocated memory is still 96.5MB. Free memory was 55.1MB in the beginning and 68.3MB in the end (delta: -13.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.12ms. Allocated memory is still 96.5MB. Free memory was 68.3MB in the beginning and 67.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.44ms. Allocated memory is still 96.5MB. Free memory was 66.7MB in the beginning and 65.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.97ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 55.5MB in the end (delta: 10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1127.32ms. Allocated memory is still 96.5MB. Free memory was 54.8MB in the beginning and 49.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 105.08ms. Allocated memory is still 96.5MB. Free memory was 49.3MB in the beginning and 73.0MB in the end (delta: -23.7MB). 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: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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 1 procedures, 25 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 26 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 46 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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 7 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((c == ~bvadd128(1bv32, 0bv32)[7:0] || c == 0bv8) || (((~bvslt32(~zero_extendFrom8To32(c), 32bv32) && ~bvsle33(0bv32, ~zero_extendFrom8To32(~bvadd128(1bv32, ~zero_extendFrom8To32(c))[7:0]))) && ~bvslt32(~zero_extendFrom8To32(~bvadd128(1bv32, ~zero_extendFrom8To32(c))[7:0]), 32bv32)) && ~bvsle33(0bv32, ~zero_extendFrom8To32(c)))) || (~bvslt32(~zero_extendFrom8To32(c), 32bv32) && ~bvsle33(0bv32, ~zero_extendFrom8To32(c))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-18 23:01:14,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE