./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 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-regression/integerpromotion-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 10:23:29,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:23:29,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:23:29,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:23:29,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:23:29,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:23:29,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:23:29,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:23:29,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:23:29,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:23:29,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:23:29,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:23:29,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:23:29,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:23:29,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:23:29,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:23:29,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:23:29,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:23:29,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:23:29,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:23:29,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:23:29,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:23:29,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:23:29,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:23:29,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:23:29,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:23:29,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:23:29,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:23:29,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:23:29,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:23:29,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:23:29,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:23:29,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:23:29,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:23:29,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:23:29,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:23:29,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:23:29,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:23:29,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:23:29,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:23:29,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:23:29,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 10:23:29,442 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:23:29,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:23:29,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:23:29,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:23:29,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:23:29,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:23:29,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:23:29,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:23:29,445 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:23:29,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:23:29,446 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:23:29,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 10:23:29,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:23:29,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:23:29,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:23:29,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:23:29,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:23:29,447 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:23:29,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:23:29,447 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:23:29,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:23:29,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:23:29,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:23:29,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:23:29,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:23:29,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:23:29,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:23:29,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:23:29,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 10:23:29,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 10:23:29,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:23:29,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:23:29,450 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:23:29,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:23:29,450 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:23:29,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef [2023-02-15 10:23:29,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:23:29,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:23:29,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:23:29,691 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:23:29,692 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:23:29,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2023-02-15 10:23:30,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:23:30,899 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:23:30,900 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2023-02-15 10:23:30,904 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fa7d8c64/8291a615b55a492799b10f53d122a73c/FLAGf956674ea [2023-02-15 10:23:30,917 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fa7d8c64/8291a615b55a492799b10f53d122a73c [2023-02-15 10:23:30,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:23:30,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:23:30,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:23:30,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:23:30,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:23:30,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:23:30" (1/1) ... [2023-02-15 10:23:30,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2a7924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:30, skipping insertion in model container [2023-02-15 10:23:30,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:23:30" (1/1) ... [2023-02-15 10:23:30,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:23:30,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:23:31,046 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-regression/integerpromotion-2.c[423,436] [2023-02-15 10:23:31,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:23:31,073 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:23:31,100 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-regression/integerpromotion-2.c[423,436] [2023-02-15 10:23:31,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:23:31,112 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:23:31,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31 WrapperNode [2023-02-15 10:23:31,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:23:31,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:23:31,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:23:31,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:23:31,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,135 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-15 10:23:31,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:23:31,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:23:31,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:23:31,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:23:31,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,152 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:23:31,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:23:31,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:23:31,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:23:31,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (1/1) ... [2023-02-15 10:23:31,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:23:31,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:23:31,186 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) [2023-02-15 10:23:31,213 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 [2023-02-15 10:23:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:23:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:23:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:23:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 10:23:31,275 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:23:31,277 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:23:31,352 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:23:31,357 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:23:31,357 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 10:23:31,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:23:31 BoogieIcfgContainer [2023-02-15 10:23:31,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:23:31,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:23:31,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:23:31,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:23:31,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:23:30" (1/3) ... [2023-02-15 10:23:31,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a869d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:23:31, skipping insertion in model container [2023-02-15 10:23:31,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:31" (2/3) ... [2023-02-15 10:23:31,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a869d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:23:31, skipping insertion in model container [2023-02-15 10:23:31,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:23:31" (3/3) ... [2023-02-15 10:23:31,365 INFO L112 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2023-02-15 10:23:31,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:23:31,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:23:31,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:23:31,417 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;@1da21003, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:23:31,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:23:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-02-15 10:23:31,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 10:23:31,425 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:23:31,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 10:23:31,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:23:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:23:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2023-02-15 10:23:31,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:23:31,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518661203] [2023-02-15 10:23:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:23:31,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:23:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 10:23:31,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 10:23:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 10:23:31,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 10:23:31,524 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 10:23:31,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 10:23:31,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 10:23:31,530 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-02-15 10:23:31,533 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 10:23:31,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:23:31 BoogieIcfgContainer [2023-02-15 10:23:31,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 10:23:31,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 10:23:31,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 10:23:31,546 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 10:23:31,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:23:31" (3/4) ... [2023-02-15 10:23:31,549 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 10:23:31,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 10:23:31,550 INFO L158 Benchmark]: Toolchain (without parser) took 627.31ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 82.5MB in the end (delta: 7.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-02-15 10:23:31,550 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:23:31,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.31ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 107.4MB in the end (delta: -17.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 10:23:31,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.92ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:23:31,552 INFO L158 Benchmark]: Boogie Preprocessor took 16.79ms. Allocated memory is still 134.2MB. Free memory was 105.6MB in the beginning and 104.8MB in the end (delta: 736.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:23:31,552 INFO L158 Benchmark]: RCFGBuilder took 204.74ms. Allocated memory is still 134.2MB. Free memory was 104.8MB in the beginning and 96.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 10:23:31,553 INFO L158 Benchmark]: TraceAbstraction took 184.71ms. Allocated memory is still 134.2MB. Free memory was 95.5MB in the beginning and 83.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 10:23:31,553 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 134.2MB. Free memory was 83.0MB in the beginning and 82.5MB in the end (delta: 460.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:23:31,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.31ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 107.4MB in the end (delta: -17.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.92ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.79ms. Allocated memory is still 134.2MB. Free memory was 105.6MB in the beginning and 104.8MB in the end (delta: 736.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 204.74ms. Allocated memory is still 134.2MB. Free memory was 104.8MB in the beginning and 96.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 184.71ms. Allocated memory is still 134.2MB. Free memory was 95.5MB in the beginning and 83.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 134.2MB. Free memory was 83.0MB in the beginning and 82.5MB in the end (delta: 460.4kB). 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; VAL [port=90, result_8=0] [L9] COND TRUE result_8 != 0xfa VAL [port=90, result_8=0] [L14] reach_error() VAL [port=90, result_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-02-15 10:23:31,581 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-regression/integerpromotion-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 10:23:33,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:23:33,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:23:33,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:23:33,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:23:33,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:23:33,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:23:33,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:23:33,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:23:33,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:23:33,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:23:33,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:23:33,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:23:33,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:23:33,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:23:33,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:23:33,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:23:33,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:23:33,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:23:33,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:23:33,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:23:33,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:23:33,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:23:33,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:23:33,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:23:33,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:23:33,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:23:33,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:23:33,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:23:33,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:23:33,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:23:33,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:23:33,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:23:33,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:23:33,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:23:33,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:23:33,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:23:33,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:23:33,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:23:33,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:23:33,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:23:33,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-02-15 10:23:33,695 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:23:33,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:23:33,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:23:33,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:23:33,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:23:33,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:23:33,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:23:33,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:23:33,698 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:23:33,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:23:33,699 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:23:33,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:23:33,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:23:33,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:23:33,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:23:33,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:23:33,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 10:23:33,701 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 10:23:33,701 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 10:23:33,701 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:23:33,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:23:33,701 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:23:33,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:23:33,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:23:33,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:23:33,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:23:33,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:23:33,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:23:33,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:23:33,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:23:33,703 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 10:23:33,703 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 10:23:33,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:23:33,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:23:33,704 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:23:33,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:23:33,704 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 10:23:33,704 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:23:33,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef [2023-02-15 10:23:33,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:23:33,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:23:34,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:23:34,003 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:23:34,004 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:23:34,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2023-02-15 10:23:35,228 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:23:35,414 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:23:35,414 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2023-02-15 10:23:35,419 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3908aad38/32729508f5e24e09a2b0a38511383a01/FLAG31d6d5c11 [2023-02-15 10:23:35,429 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3908aad38/32729508f5e24e09a2b0a38511383a01 [2023-02-15 10:23:35,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:23:35,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:23:35,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:23:35,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:23:35,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:23:35,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6d53bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35, skipping insertion in model container [2023-02-15 10:23:35,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:23:35,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:23:35,570 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-regression/integerpromotion-2.c[423,436] [2023-02-15 10:23:35,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:23:35,594 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:23:35,608 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-regression/integerpromotion-2.c[423,436] [2023-02-15 10:23:35,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:23:35,622 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:23:35,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35 WrapperNode [2023-02-15 10:23:35,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:23:35,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:23:35,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:23:35,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:23:35,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,647 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-15 10:23:35,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:23:35,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:23:35,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:23:35,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:23:35,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:23:35,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:23:35,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:23:35,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:23:35,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (1/1) ... [2023-02-15 10:23:35,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:23:35,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:23:35,738 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) [2023-02-15 10:23:35,757 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 [2023-02-15 10:23:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:23:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:23:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:23:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-15 10:23:35,828 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:23:35,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:23:35,934 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:23:35,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:23:35,944 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 10:23:35,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:23:35 BoogieIcfgContainer [2023-02-15 10:23:35,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:23:35,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:23:35,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:23:35,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:23:35,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:23:35" (1/3) ... [2023-02-15 10:23:35,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463a2536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:23:35, skipping insertion in model container [2023-02-15 10:23:35,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:23:35" (2/3) ... [2023-02-15 10:23:35,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463a2536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:23:35, skipping insertion in model container [2023-02-15 10:23:35,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:23:35" (3/3) ... [2023-02-15 10:23:35,953 INFO L112 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2023-02-15 10:23:35,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:23:35,969 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:23:36,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:23:36,009 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;@7d8c8b2a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:23:36,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:23:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-02-15 10:23:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 10:23:36,019 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:23:36,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 10:23:36,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:23:36,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:23:36,027 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2023-02-15 10:23:36,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 10:23:36,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145994538] [2023-02-15 10:23:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:23:36,038 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 [2023-02-15 10:23:36,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 10:23:36,041 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) [2023-02-15 10:23:36,042 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 [2023-02-15 10:23:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:23:36,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 10:23:36,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:23:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:23:36,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 10:23:36,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 10:23:36,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145994538] [2023-02-15 10:23:36,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145994538] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:23:36,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:23:36,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 10:23:36,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129794118] [2023-02-15 10:23:36,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:23:36,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 10:23:36,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 10:23:36,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 10:23:36,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 10:23:36,178 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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, 3 states have (on average 1.3333333333333333) 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) [2023-02-15 10:23:36,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:23:36,192 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2023-02-15 10:23:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 10:23:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 [2023-02-15 10:23:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:23:36,198 INFO L225 Difference]: With dead ends: 11 [2023-02-15 10:23:36,199 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 10:23:36,201 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 [2023-02-15 10:23:36,203 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:23:36,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:23:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 10:23:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 10:23:36,221 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) [2023-02-15 10:23:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 10:23:36,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2023-02-15 10:23:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:23:36,223 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 10:23:36,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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) [2023-02-15 10:23:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 10:23:36,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 10:23:36,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 10:23:36,237 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 [2023-02-15 10:23:36,434 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 [2023-02-15 10:23:36,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 10:23:36,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 10:23:36,444 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 10:23:36,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 10:23:36,445 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-02-15 10:23:36,445 INFO L895 garLoopResultBuilder]: At program point main_ERROR#1(lines 5 16) the Hoare annotation is: false [2023-02-15 10:23:36,445 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 10:23:36,445 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2023-02-15 10:23:36,446 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 16) the Hoare annotation is: (= (bvadd (_ bv6 8) |ULTIMATE.start_main_~result_8~0#1|) (_ bv0 8)) [2023-02-15 10:23:36,448 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-02-15 10:23:36,450 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 10:23:36,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:23:36 BoogieIcfgContainer [2023-02-15 10:23:36,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 10:23:36,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 10:23:36,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 10:23:36,468 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 10:23:36,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:23:35" (3/4) ... [2023-02-15 10:23:36,470 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 10:23:36,479 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-15 10:23:36,479 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 10:23:36,479 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 10:23:36,480 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 10:23:36,500 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 10:23:36,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 10:23:36,502 INFO L158 Benchmark]: Toolchain (without parser) took 1067.02ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 43.5MB in the beginning and 45.3MB in the end (delta: -1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,504 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory was 28.2MB in the beginning and 28.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:23:36,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.06ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 33.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.10ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 31.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,507 INFO L158 Benchmark]: Boogie Preprocessor took 44.50ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 47.2MB in the end (delta: -15.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,512 INFO L158 Benchmark]: RCFGBuilder took 251.94ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 38.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,513 INFO L158 Benchmark]: TraceAbstraction took 518.71ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 37.9MB in the beginning and 47.4MB in the end (delta: -9.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,513 INFO L158 Benchmark]: Witness Printer took 33.36ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:23:36,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory was 28.2MB in the beginning and 28.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.06ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 33.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.10ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 31.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.50ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 47.2MB in the end (delta: -15.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * RCFGBuilder took 251.94ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 38.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 518.71ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 37.9MB in the beginning and 47.4MB in the end (delta: -9.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 33.36ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ~bvadd128(6bv8, result_8) == 0bv8 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-02-15 10:23:36,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE