./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f57a241e2c58801cabb7fcf6419a1ee8415c4d2687e9efe6a7f86e17b88f5ca --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:32:36,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:32:36,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:32:36,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:32:36,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:32:36,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:32:36,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:32:36,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:32:36,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:32:36,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:32:36,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:32:36,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:32:36,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:32:36,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:32:36,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:32:36,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:32:36,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:32:36,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:32:36,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:32:37,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:32:37,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:32:37,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:32:37,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:32:37,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:32:37,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:32:37,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:32:37,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:32:37,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:32:37,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:32:37,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:32:37,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:32:37,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:32:37,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:32:37,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:32:37,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:32:37,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:32:37,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:32:37,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:32:37,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:32:37,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:32:37,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:32:37,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:32:37,048 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:32:37,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:32:37,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:32:37,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:32:37,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:32:37,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:32:37,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:32:37,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:32:37,050 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:32:37,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:32:37,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:32:37,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:32:37,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:32:37,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:32:37,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:32:37,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:32:37,052 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:32:37,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:32:37,052 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:32:37,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:32:37,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:32:37,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:32:37,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:32:37,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:32:37,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:32:37,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:32:37,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:32:37,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:32:37,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:32:37,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:32:37,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:32:37,054 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:32:37,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:32:37,055 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:32:37,055 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f57a241e2c58801cabb7fcf6419a1ee8415c4d2687e9efe6a7f86e17b88f5ca [2023-02-18 23:32:37,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:32:37,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:32:37,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:32:37,275 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:32:37,275 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:32:37,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2023-02-18 23:32:38,207 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:32:38,340 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:32:38,341 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2023-02-18 23:32:38,348 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4bcbaa14/d3bf52762940499c88145cdbd864d041/FLAGae617c2ba [2023-02-18 23:32:38,360 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4bcbaa14/d3bf52762940499c88145cdbd864d041 [2023-02-18 23:32:38,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:32:38,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:32:38,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:32:38,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:32:38,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:32:38,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3865f7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38, skipping insertion in model container [2023-02-18 23:32:38,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:32:38,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:32:38,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:32:38,485 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:32:38,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:32:38,508 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:32:38,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38 WrapperNode [2023-02-18 23:32:38,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:32:38,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:32:38,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:32:38,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:32:38,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,538 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-02-18 23:32:38,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:32:38,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:32:38,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:32:38,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:32:38,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:32:38,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:32:38,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:32:38,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:32:38,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (1/1) ... [2023-02-18 23:32:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:32:38,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:32:38,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 23:32:38,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:32:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:32:38,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 23:32:38,656 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:32:38,657 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:32:38,756 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:32:38,760 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:32:38,760 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:32:38,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:32:38 BoogieIcfgContainer [2023-02-18 23:32:38,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:32:38,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:32:38,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:32:38,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:32:38,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:32:38" (1/3) ... [2023-02-18 23:32:38,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ac9a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:32:38, skipping insertion in model container [2023-02-18 23:32:38,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:32:38" (2/3) ... [2023-02-18 23:32:38,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ac9a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:32:38, skipping insertion in model container [2023-02-18 23:32:38,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:32:38" (3/3) ... [2023-02-18 23:32:38,767 INFO L112 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2023-02-18 23:32:38,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:32:38,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 23:32:38,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:32:38,836 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;@30d7c34a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:32:38,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 23:32:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:32:38,843 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:32:38,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:32:38,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:32:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:32:38,848 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2023-02-18 23:32:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:32:38,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804456209] [2023-02-18 23:32:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:32:38,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:32:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:32:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:32:38,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:32:38,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804456209] [2023-02-18 23:32:38,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804456209] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:32:38,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:32:38,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:32:38,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809664102] [2023-02-18 23:32:38,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:32:38,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:32:38,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:32:39,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:32:39,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:32:39,019 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:32:39,086 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2023-02-18 23:32:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:32:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-02-18 23:32:39,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:32:39,107 INFO L225 Difference]: With dead ends: 31 [2023-02-18 23:32:39,108 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 23:32:39,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:32:39,112 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:32:39,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 17 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:32:39,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 23:32:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2023-02-18 23:32:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2023-02-18 23:32:39,156 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 5 [2023-02-18 23:32:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:32:39,156 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-02-18 23:32:39,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-02-18 23:32:39,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:32:39,157 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:32:39,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:32:39,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:32:39,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:32:39,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:32:39,158 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2023-02-18 23:32:39,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:32:39,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316664275] [2023-02-18 23:32:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:32:39,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:32:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:32:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:32:39,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:32:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316664275] [2023-02-18 23:32:39,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316664275] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:32:39,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:32:39,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:32:39,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164797179] [2023-02-18 23:32:39,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:32:39,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:32:39,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:32:39,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:32:39,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:32:39,285 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:32:39,308 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2023-02-18 23:32:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:32:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2023-02-18 23:32:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:32:39,315 INFO L225 Difference]: With dead ends: 18 [2023-02-18 23:32:39,315 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 23:32:39,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:32:39,316 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:32:39,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:32:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 23:32:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2023-02-18 23:32:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2023-02-18 23:32:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2023-02-18 23:32:39,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2023-02-18 23:32:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:32:39,319 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-02-18 23:32:39,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-02-18 23:32:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:32:39,320 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:32:39,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:32:39,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:32:39,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:32:39,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:32:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2023-02-18 23:32:39,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:32:39,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528493902] [2023-02-18 23:32:39,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:32:39,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:32:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:32:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:32:39,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:32:39,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528493902] [2023-02-18 23:32:39,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528493902] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:32:39,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:32:39,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:32:39,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628426952] [2023-02-18 23:32:39,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:32:39,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:32:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:32:39,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:32:39,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:32:39,338 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2023-02-18 23:32:39,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:32:39,348 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2023-02-18 23:32:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:32:39,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 [2023-02-18 23:32:39,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:32:39,349 INFO L225 Difference]: With dead ends: 12 [2023-02-18 23:32:39,349 INFO L226 Difference]: Without dead ends: 11 [2023-02-18 23:32:39,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:32:39,350 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:32:39,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:32:39,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-18 23:32:39,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-02-18 23:32:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2023-02-18 23:32:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-02-18 23:32:39,352 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2023-02-18 23:32:39,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:32:39,353 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-02-18 23:32:39,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,353 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-02-18 23:32:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:32:39,353 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:32:39,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:32:39,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:32:39,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:32:39,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:32:39,354 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2023-02-18 23:32:39,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:32:39,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146742513] [2023-02-18 23:32:39,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:32:39,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:32:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:32:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:32:39,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:32:39,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146742513] [2023-02-18 23:32:39,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146742513] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:32:39,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:32:39,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:32:39,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243590311] [2023-02-18 23:32:39,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:32:39,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:32:39,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:32:39,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:32:39,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:32:39,373 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-02-18 23:32:39,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:32:39,398 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2023-02-18 23:32:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:32:39,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-02-18 23:32:39,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:32:39,399 INFO L225 Difference]: With dead ends: 12 [2023-02-18 23:32:39,399 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:32:39,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:32:39,400 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:32:39,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 15 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:32:39,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:32:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:32:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:32:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:32:39,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2023-02-18 23:32:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:32:39,405 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:32:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-02-18 23:32:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:32:39,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:32:39,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 23:32:39,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 23:32:39,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 23:32:39,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 23:32:39,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:32:39,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:32:39,414 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-18 23:32:39,417 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:32:39,417 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-18 23:32:39,418 INFO L895 garLoopResultBuilder]: At program point L23-1(lines 17 26) the Hoare annotation is: (let ((.cse4 (not (<= (+ (div |ULTIMATE.start_main_~x~0#1| 2) 1073741825) 0))) (.cse2 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)))) (let ((.cse3 (and (or .cse2 .cse4) .cse2)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 254))) (let ((.cse1 (and (or .cse2 .cse3 .cse4) .cse0))) (or (and .cse0 (or .cse1 .cse2 .cse3 .cse4)) .cse1 .cse2 .cse3 .cse4)))) [2023-02-18 23:32:39,418 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-02-18 23:32:39,419 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-02-18 23:32:39,419 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-18 23:32:39,419 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-02-18 23:32:39,419 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2023-02-18 23:32:39,420 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:32:39,420 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 28) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) [2023-02-18 23:32:39,421 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:32:39,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-18 23:32:39,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-18 23:32:39,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:32:39,422 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2023-02-18 23:32:39,422 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2023-02-18 23:32:39,424 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-18 23:32:39,426 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:32:39,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:32:39 BoogieIcfgContainer [2023-02-18 23:32:39,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:32:39,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:32:39,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:32:39,440 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:32:39,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:32:38" (3/4) ... [2023-02-18 23:32:39,453 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:32:39,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 23:32:39,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 23:32:39,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:32:39,479 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:32:39,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:32:39,480 INFO L158 Benchmark]: Toolchain (without parser) took 1115.79ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 125.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-02-18 23:32:39,480 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:32:39,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.81ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 117.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 23:32:39,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.39ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 116.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:32:39,481 INFO L158 Benchmark]: Boogie Preprocessor took 18.73ms. Allocated memory is still 174.1MB. Free memory was 116.3MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:32:39,481 INFO L158 Benchmark]: RCFGBuilder took 202.22ms. Allocated memory is still 174.1MB. Free memory was 115.0MB in the beginning and 106.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:32:39,481 INFO L158 Benchmark]: TraceAbstraction took 676.66ms. Allocated memory is still 174.1MB. Free memory was 105.7MB in the beginning and 127.8MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:32:39,481 INFO L158 Benchmark]: Witness Printer took 39.04ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:32:39,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.81ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 117.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.39ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 116.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.73ms. Allocated memory is still 174.1MB. Free memory was 116.3MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 202.22ms. Allocated memory is still 174.1MB. Free memory was 115.0MB in the beginning and 106.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 676.66ms. Allocated memory is still 174.1MB. Free memory was 105.7MB in the beginning and 127.8MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.04ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 125.7MB 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 31 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, InterpolantAutomatonStates: 14, 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 153 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((x <= 254 && ((((((0 <= x + 2147483648 || ((0 <= x + 2147483648 || !(x / 2 + 1073741825 <= 0)) && 0 <= x + 2147483648)) || !(x / 2 + 1073741825 <= 0)) && x <= 254) || 0 <= x + 2147483648) || ((0 <= x + 2147483648 || !(x / 2 + 1073741825 <= 0)) && 0 <= x + 2147483648)) || !(x / 2 + 1073741825 <= 0))) || (((0 <= x + 2147483648 || ((0 <= x + 2147483648 || !(x / 2 + 1073741825 <= 0)) && 0 <= x + 2147483648)) || !(x / 2 + 1073741825 <= 0)) && x <= 254)) || 0 <= x + 2147483648) || ((0 <= x + 2147483648 || !(x / 2 + 1073741825 <= 0)) && 0 <= x + 2147483648)) || !(x / 2 + 1073741825 <= 0) RESULT: Ultimate proved your program to be correct! [2023-02-18 23:32:39,498 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