./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/overflow_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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/loop-acceleration/overflow_1-1.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 0590736743c18ebce50a6d0f77e9fc85deef542ee50a2e7c24805789d5b67791 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 01:01:55,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 01:01:55,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 01:01:55,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 01:01:55,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 01:01:55,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 01:01:55,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 01:01:55,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 01:01:55,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 01:01:55,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 01:01:55,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 01:01:55,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 01:01:55,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 01:01:55,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 01:01:55,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 01:01:55,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 01:01:55,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 01:01:55,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 01:01:55,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 01:01:55,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 01:01:55,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 01:01:55,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 01:01:55,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 01:01:55,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 01:01:55,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 01:01:55,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 01:01:55,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 01:01:55,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 01:01:55,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 01:01:55,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 01:01:55,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 01:01:55,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 01:01:55,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 01:01:55,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 01:01:55,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 01:01:55,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 01:01:55,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 01:01:55,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 01:01:55,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 01:01:55,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 01:01:55,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 01:01:55,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 01:01:55,582 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 01:01:55,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 01:01:55,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 01:01:55,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 01:01:55,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 01:01:55,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 01:01:55,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 01:01:55,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 01:01:55,585 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 01:01:55,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 01:01:55,585 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 01:01:55,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 01:01:55,587 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 01:01:55,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 01:01:55,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 01:01:55,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 01:01:55,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 01:01:55,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 01:01:55,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 01:01:55,588 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 01:01:55,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 01:01:55,589 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 01:01:55,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0590736743c18ebce50a6d0f77e9fc85deef542ee50a2e7c24805789d5b67791 [2023-02-17 01:01:55,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 01:01:55,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 01:01:55,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 01:01:55,794 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 01:01:55,795 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 01:01:55,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/overflow_1-1.c [2023-02-17 01:01:56,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 01:01:56,953 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 01:01:56,953 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/overflow_1-1.c [2023-02-17 01:01:56,957 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcb5c4f26/4a29896ef2ce49c4ae5a1c52cc140a70/FLAG604dec31f [2023-02-17 01:01:56,971 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcb5c4f26/4a29896ef2ce49c4ae5a1c52cc140a70 [2023-02-17 01:01:56,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 01:01:56,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 01:01:56,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 01:01:56,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 01:01:56,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 01:01:56,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 01:01:56" (1/1) ... [2023-02-17 01:01:56,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f96a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:56, skipping insertion in model container [2023-02-17 01:01:56,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 01:01:56" (1/1) ... [2023-02-17 01:01:56,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 01:01:56,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 01:01:57,082 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/loop-acceleration/overflow_1-1.c[324,337] [2023-02-17 01:01:57,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 01:01:57,100 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 01:01:57,108 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/loop-acceleration/overflow_1-1.c[324,337] [2023-02-17 01:01:57,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 01:01:57,119 INFO L208 MainTranslator]: Completed translation [2023-02-17 01:01:57,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57 WrapperNode [2023-02-17 01:01:57,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 01:01:57,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 01:01:57,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 01:01:57,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 01:01:57,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,138 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2023-02-17 01:01:57,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 01:01:57,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 01:01:57,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 01:01:57,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 01:01:57,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 01:01:57,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 01:01:57,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 01:01:57,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 01:01:57,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (1/1) ... [2023-02-17 01:01:57,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 01:01:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:01:57,180 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) [2023-02-17 01:01:57,189 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 [2023-02-17 01:01:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 01:01:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 01:01:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 01:01:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 01:01:57,270 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 01:01:57,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 01:01:57,394 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 01:01:57,409 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 01:01:57,409 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 01:01:57,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:01:57 BoogieIcfgContainer [2023-02-17 01:01:57,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 01:01:57,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 01:01:57,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 01:01:57,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 01:01:57,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 01:01:56" (1/3) ... [2023-02-17 01:01:57,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e05adfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 01:01:57, skipping insertion in model container [2023-02-17 01:01:57,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:01:57" (2/3) ... [2023-02-17 01:01:57,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e05adfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 01:01:57, skipping insertion in model container [2023-02-17 01:01:57,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:01:57" (3/3) ... [2023-02-17 01:01:57,424 INFO L112 eAbstractionObserver]: Analyzing ICFG overflow_1-1.c [2023-02-17 01:01:57,435 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 01:01:57,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 01:01:57,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 01:01:57,487 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;@4912bb3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 01:01:57,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 01:01:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-02-17 01:01:57,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 01:01:57,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:01:57,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 01:01:57,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:01:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:01:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2023-02-17 01:01:57,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:01:57,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613164814] [2023-02-17 01:01:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:01:57,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:01:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:01:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:01:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:01:57,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613164814] [2023-02-17 01:01:57,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613164814] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 01:01:57,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 01:01:57,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 01:01:57,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218355276] [2023-02-17 01:01:57,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:01:57,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 01:01:57,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:01:57,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 01:01:57,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 01:01:57,800 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 01:01:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:01:57,838 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2023-02-17 01:01:57,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 01:01:57,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 01:01:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:01:57,846 INFO L225 Difference]: With dead ends: 20 [2023-02-17 01:01:57,846 INFO L226 Difference]: Without dead ends: 8 [2023-02-17 01:01:57,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 01:01:57,852 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:01:57,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:01:57,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-17 01:01:57,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-17 01:01:57,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) 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) [2023-02-17 01:01:57,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-02-17 01:01:57,879 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2023-02-17 01:01:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:01:57,879 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-02-17 01:01:57,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 01:01:57,880 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-02-17 01:01:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 01:01:57,880 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:01:57,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 01:01:57,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 01:01:57,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:01:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:01:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2023-02-17 01:01:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:01:57,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806527549] [2023-02-17 01:01:57,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:01:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:01:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:01:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:01:57,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:01:57,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806527549] [2023-02-17 01:01:57,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806527549] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 01:01:57,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166666645] [2023-02-17 01:01:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:01:57,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:01:57,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:01:57,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 01:01:57,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 01:01:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:01:58,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 01:01:58,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:01:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:01:58,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 01:01:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:01:58,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166666645] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 01:01:58,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 01:01:58,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-17 01:01:58,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627931852] [2023-02-17 01:01:58,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 01:01:58,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 01:01:58,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:01:58,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 01:01:58,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-17 01:01:58,153 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-02-17 01:01:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:01:58,183 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-02-17 01:01:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 01:01:58,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 01:01:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:01:58,184 INFO L225 Difference]: With dead ends: 15 [2023-02-17 01:01:58,184 INFO L226 Difference]: Without dead ends: 11 [2023-02-17 01:01:58,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-02-17 01:01:58,185 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:01:58,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:01:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-17 01:01:58,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-17 01:01:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-02-17 01:01:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-02-17 01:01:58,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-02-17 01:01:58,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:01:58,189 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-17 01:01:58,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-02-17 01:01:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-02-17 01:01:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 01:01:58,190 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:01:58,190 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2023-02-17 01:01:58,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 01:01:58,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:01:58,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:01:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:01:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1922847381, now seen corresponding path program 2 times [2023-02-17 01:01:58,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:01:58,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145923465] [2023-02-17 01:01:58,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:01:58,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:01:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:01:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:01:58,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:01:58,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145923465] [2023-02-17 01:01:58,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145923465] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 01:01:58,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132243862] [2023-02-17 01:01:58,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 01:01:58,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:01:58,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:01:58,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 01:01:58,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 01:01:58,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 01:01:58,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 01:01:58,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 01:01:58,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:01:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:01:58,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 01:01:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-17 01:01:58,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132243862] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 01:01:58,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-17 01:01:58,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 11 [2023-02-17 01:01:58,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950726467] [2023-02-17 01:01:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:01:58,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 01:01:58,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:01:58,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 01:01:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-02-17 01:01:58,980 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 01:01:58,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:01:58,996 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2023-02-17 01:01:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 01:01:58,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 01:01:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:01:58,996 INFO L225 Difference]: With dead ends: 11 [2023-02-17 01:01:58,997 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 01:01:58,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 9 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-02-17 01:01:59,000 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:01:59,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:01:59,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 01:01:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 01:01:59,003 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) [2023-02-17 01:01:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 01:01:59,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-02-17 01:01:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:01:59,003 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 01:01:59,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 01:01:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 01:01:59,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 01:01:59,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 01:01:59,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-17 01:01:59,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-17 01:01:59,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 01:01:59,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 01:01:59,220 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 17) the Hoare annotation is: (let ((.cse6 (<= (div |ULTIMATE.start_main_~x~0#1| 4294967296) 0)) (.cse14 (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 0)) (.cse15 (mod |ULTIMATE.start_main_~x~0#1| 2))) (let ((.cse9 (= (mod .cse15 4294967296) 0)) (.cse10 (not .cse14)) (.cse12 (= (mod (+ .cse15 4294967294) 4294967296) 0)) (.cse11 (= .cse15 0)) (.cse5 (not .cse6))) (let ((.cse1 (or .cse6 (<= |ULTIMATE.start_main_~x~0#1| 12))) (.cse3 (or (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 12))) .cse5)) (.cse0 (or .cse9 (let ((.cse13 (not .cse11))) (and (or (and .cse13 .cse14) (not .cse12)) (or (and .cse13 (or .cse10 .cse11) .cse14) .cse12))))) (.cse2 (or (not .cse9) .cse10 .cse11 .cse12))) (or (and (>= (mod (+ 2 |ULTIMATE.start_main_~x~0#1|) 4294967296) 10) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2) (let ((.cse7 (<= |ULTIMATE.start_main_~x~0#1| 10)) (.cse4 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 10))))) (and (or .cse4 .cse5) (or .cse6 .cse7) .cse0 .cse7 .cse2 .cse4)) (and .cse0 .cse1 .cse2 .cse3) (let ((.cse8 (+ (- 2) |ULTIMATE.start_main_~x~0#1|))) (and (<= .cse8 10) .cse0 (<= 0 (+ .cse8 (- 10))) .cse2)))))) [2023-02-17 01:01:59,221 INFO L899 garLoopResultBuilder]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2023-02-17 01:01:59,221 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 01:01:59,221 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-02-17 01:01:59,224 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 01:01:59,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 01:01:59,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2023-02-17 01:01:59,225 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 20) no Hoare annotation was computed. [2023-02-17 01:01:59,225 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-02-17 01:01:59,225 INFO L902 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2023-02-17 01:01:59,231 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-02-17 01:01:59,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 01:01:59,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 01:01:59 BoogieIcfgContainer [2023-02-17 01:01:59,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 01:01:59,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 01:01:59,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 01:01:59,267 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 01:01:59,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:01:57" (3/4) ... [2023-02-17 01:01:59,269 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 01:01:59,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-17 01:01:59,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 01:01:59,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 01:01:59,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 01:01:59,296 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 01:01:59,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 01:01:59,297 INFO L158 Benchmark]: Toolchain (without parser) took 2322.74ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 81.3MB in the beginning and 75.8MB in the end (delta: 5.6MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-02-17 01:01:59,297 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:01:59,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.77ms. Allocated memory is still 127.9MB. Free memory was 81.3MB in the beginning and 71.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 01:01:59,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.66ms. Allocated memory is still 127.9MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 01:01:59,297 INFO L158 Benchmark]: Boogie Preprocessor took 11.42ms. Allocated memory is still 127.9MB. Free memory was 69.9MB in the beginning and 69.2MB in the end (delta: 717.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:01:59,298 INFO L158 Benchmark]: RCFGBuilder took 267.65ms. Allocated memory is still 127.9MB. Free memory was 69.2MB in the beginning and 60.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 01:01:59,298 INFO L158 Benchmark]: TraceAbstraction took 1845.63ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 59.9MB in the beginning and 77.9MB in the end (delta: -17.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-02-17 01:01:59,298 INFO L158 Benchmark]: Witness Printer took 29.87ms. Allocated memory is still 165.7MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 01:01:59,299 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 127.9MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.77ms. Allocated memory is still 127.9MB. Free memory was 81.3MB in the beginning and 71.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.66ms. Allocated memory is still 127.9MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.42ms. Allocated memory is still 127.9MB. Free memory was 69.9MB in the beginning and 69.2MB in the end (delta: 717.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.65ms. Allocated memory is still 127.9MB. Free memory was 69.2MB in the beginning and 60.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1845.63ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 59.9MB in the beginning and 77.9MB in the end (delta: -17.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 29.87ms. Allocated memory is still 165.7MB. Free memory was 77.9MB in the beginning and 75.8MB 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: 7]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 18 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 13 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 572 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 818 SizeOfPredicates, 4 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 10/33 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: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((((((2 + x) % 4294967296 >= 10 && (x % 2 % 4294967296 == 0 || (((!(x % 2 == 0) && x % 4294967296 < 0) || !((x % 2 + 4294967294) % 4294967296 == 0)) && (((!(x % 2 == 0) && (!(x % 4294967296 < 0) || x % 2 == 0)) && x % 4294967296 < 0) || (x % 2 + 4294967294) % 4294967296 == 0)))) && (x / 4294967296 <= 0 || x <= 12)) && (((!(x % 2 % 4294967296 == 0) || !(x % 4294967296 < 0)) || x % 2 == 0) || (x % 2 + 4294967294) % 4294967296 == 0)) && (0 <= x + -12 || !(x / 4294967296 <= 0))) || ((x % 2 % 4294967296 == 0 || (((!(x % 2 == 0) && x % 4294967296 < 0) || !((x % 2 + 4294967294) % 4294967296 == 0)) && (((!(x % 2 == 0) && (!(x % 4294967296 < 0) || x % 2 == 0)) && x % 4294967296 < 0) || (x % 2 + 4294967294) % 4294967296 == 0))) && (((!(x % 2 % 4294967296 == 0) || !(x % 4294967296 < 0)) || x % 2 == 0) || (x % 2 + 4294967294) % 4294967296 == 0))) || ((((((0 <= x + -10 || !(x / 4294967296 <= 0)) && (x / 4294967296 <= 0 || x <= 10)) && (x % 2 % 4294967296 == 0 || (((!(x % 2 == 0) && x % 4294967296 < 0) || !((x % 2 + 4294967294) % 4294967296 == 0)) && (((!(x % 2 == 0) && (!(x % 4294967296 < 0) || x % 2 == 0)) && x % 4294967296 < 0) || (x % 2 + 4294967294) % 4294967296 == 0)))) && x <= 10) && (((!(x % 2 % 4294967296 == 0) || !(x % 4294967296 < 0)) || x % 2 == 0) || (x % 2 + 4294967294) % 4294967296 == 0)) && 0 <= x + -10)) || ((((x % 2 % 4294967296 == 0 || (((!(x % 2 == 0) && x % 4294967296 < 0) || !((x % 2 + 4294967294) % 4294967296 == 0)) && (((!(x % 2 == 0) && (!(x % 4294967296 < 0) || x % 2 == 0)) && x % 4294967296 < 0) || (x % 2 + 4294967294) % 4294967296 == 0))) && (x / 4294967296 <= 0 || x <= 12)) && (((!(x % 2 % 4294967296 == 0) || !(x % 4294967296 < 0)) || x % 2 == 0) || (x % 2 + 4294967294) % 4294967296 == 0)) && (0 <= x + -12 || !(x / 4294967296 <= 0)))) || (((-2 + x <= 10 && (x % 2 % 4294967296 == 0 || (((!(x % 2 == 0) && x % 4294967296 < 0) || !((x % 2 + 4294967294) % 4294967296 == 0)) && (((!(x % 2 == 0) && (!(x % 4294967296 < 0) || x % 2 == 0)) && x % 4294967296 < 0) || (x % 2 + 4294967294) % 4294967296 == 0)))) && 0 <= -2 + x + -10) && (((!(x % 2 % 4294967296 == 0) || !(x % 4294967296 < 0)) || x % 2 == 0) || (x % 2 + 4294967294) % 4294967296 == 0)) RESULT: Ultimate proved your program to be correct! [2023-02-17 01:01:59,312 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