./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 54858612 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 bc157475d6c321934f68f6b441d83c0582720461 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:05:50,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:05:50,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:05:50,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:05:50,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:05:50,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:05:50,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:05:50,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:05:50,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:05:50,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:05:50,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:05:50,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:05:50,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:05:50,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:05:50,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:05:50,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:05:50,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:05:50,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:05:50,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:05:50,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:05:50,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:05:50,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:05:50,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:05:50,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:05:50,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:05:50,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:05:50,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:05:50,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:05:50,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:05:50,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:05:50,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:05:50,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:05:50,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:05:50,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:05:50,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:05:50,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:05:50,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:05:50,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:05:50,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:05:50,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:05:50,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:05:50,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:05:50,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:05:50,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:05:50,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:05:50,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:05:50,563 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:05:50,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:05:50,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:05:50,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:05:50,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:05:50,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:05:50,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:05:50,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:05:50,567 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:05:50,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:05:50,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:05:50,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:05:50,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:05:50,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:05:50,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:05:50,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:05:50,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:05:50,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:05:50,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:05:50,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:05:50,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:05:50,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:05:50,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:05:50,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:05:50,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc157475d6c321934f68f6b441d83c0582720461 [2020-10-26 04:05:51,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:05:51,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:05:51,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:05:51,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:05:51,084 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:05:51,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-10-26 04:05:51,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda395118/9e60859361d24313884dee3b01d27582/FLAGf1caefec0 [2020-10-26 04:05:51,790 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:05:51,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-10-26 04:05:51,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda395118/9e60859361d24313884dee3b01d27582/FLAGf1caefec0 [2020-10-26 04:05:52,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda395118/9e60859361d24313884dee3b01d27582 [2020-10-26 04:05:52,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:05:52,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:05:52,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:05:52,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:05:52,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:05:52,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781bd9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52, skipping insertion in model container [2020-10-26 04:05:52,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:05:52,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:05:52,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:05:52,453 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:05:52,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:05:52,495 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:05:52,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52 WrapperNode [2020-10-26 04:05:52,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:05:52,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:05:52,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:05:52,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:05:52,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:05:52,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:05:52,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:05:52,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:05:52,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... [2020-10-26 04:05:52,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:05:52,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:05:52,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:05:52,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:05:52,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:05:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:05:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:05:52,989 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:05:52,989 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:05:52,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:52 BoogieIcfgContainer [2020-10-26 04:05:52,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:05:52,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:05:52,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:05:53,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:05:53,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:05:52" (1/3) ... [2020-10-26 04:05:53,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16be5a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:05:53, skipping insertion in model container [2020-10-26 04:05:53,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:52" (2/3) ... [2020-10-26 04:05:53,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16be5a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:05:53, skipping insertion in model container [2020-10-26 04:05:53,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:52" (3/3) ... [2020-10-26 04:05:53,013 INFO L111 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-10-26 04:05:53,046 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:05:53,060 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-26 04:05:53,095 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-26 04:05:53,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:05:53,131 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:05:53,131 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:05:53,131 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:05:53,131 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:05:53,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:05:53,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:05:53,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:05:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-26 04:05:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:05:53,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:53,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:05:53,156 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:05:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:53,164 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-10-26 04:05:53,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:53,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797297030] [2020-10-26 04:05:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:53,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797297030] [2020-10-26 04:05:53,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:53,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:05:53,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044975306] [2020-10-26 04:05:53,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:53,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:53,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:53,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:53,397 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-10-26 04:05:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:53,454 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-10-26 04:05:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:53,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 04:05:53,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:53,468 INFO L225 Difference]: With dead ends: 21 [2020-10-26 04:05:53,469 INFO L226 Difference]: Without dead ends: 12 [2020-10-26 04:05:53,473 INFO L677 BasicCegarLoop]: 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 [2020-10-26 04:05:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-26 04:05:53,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-10-26 04:05:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-26 04:05:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-26 04:05:53,514 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-26 04:05:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:53,515 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-26 04:05:53,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-26 04:05:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:05:53,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:53,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:05:53,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:05:53,517 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:05:53,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:53,518 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-10-26 04:05:53,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:53,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136459853] [2020-10-26 04:05:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:53,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136459853] [2020-10-26 04:05:53,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:53,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:05:53,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577338593] [2020-10-26 04:05:53,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:53,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:53,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:53,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:05:53,563 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2020-10-26 04:05:53,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:53,626 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-10-26 04:05:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:53,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-26 04:05:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:53,628 INFO L225 Difference]: With dead ends: 13 [2020-10-26 04:05:53,628 INFO L226 Difference]: Without dead ends: 12 [2020-10-26 04:05:53,630 INFO L677 BasicCegarLoop]: 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 [2020-10-26 04:05:53,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-26 04:05:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-10-26 04:05:53,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-26 04:05:53,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-10-26 04:05:53,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 4 [2020-10-26 04:05:53,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:53,634 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-26 04:05:53,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:53,634 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-10-26 04:05:53,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:05:53,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:53,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:05:53,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:05:53,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:05:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:53,637 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-26 04:05:53,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:53,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979704429] [2020-10-26 04:05:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:53,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979704429] [2020-10-26 04:05:53,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:53,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:05:53,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914884693] [2020-10-26 04:05:53,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:53,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:53,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:53,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:53,675 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-10-26 04:05:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:53,702 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2020-10-26 04:05:53,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:53,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:05:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:53,704 INFO L225 Difference]: With dead ends: 10 [2020-10-26 04:05:53,704 INFO L226 Difference]: Without dead ends: 9 [2020-10-26 04:05:53,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-26 04:05:53,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-26 04:05:53,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-26 04:05:53,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-10-26 04:05:53,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2020-10-26 04:05:53,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:53,708 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-10-26 04:05:53,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:53,708 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-10-26 04:05:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:05:53,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:53,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:05:53,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:05:53,709 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:05:53,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:53,710 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-10-26 04:05:53,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:53,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15987873] [2020-10-26 04:05:53,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:53,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15987873] [2020-10-26 04:05:53,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:53,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:05:53,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142917043] [2020-10-26 04:05:53,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:53,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:53,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:53,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:05:53,790 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 4 states. [2020-10-26 04:05:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:53,831 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2020-10-26 04:05:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:53,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-26 04:05:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:53,832 INFO L225 Difference]: With dead ends: 9 [2020-10-26 04:05:53,832 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:05:53,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:05:53,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:05:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:05:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:05:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:05:53,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-10-26 04:05:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:53,834 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:05:53,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:05:53,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:05:53,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:05:53,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:05:53,860 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-10-26 04:05:53,860 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:05:53,861 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-10-26 04:05:53,861 INFO L277 CegarLoopResult]: At program point L27(lines 13 28) the Hoare annotation is: true [2020-10-26 04:05:53,861 INFO L270 CegarLoopResult]: At program point L23-1(lines 17 26) the Hoare annotation is: (< 0 (+ (div ULTIMATE.start_main_~x~0 2) 1073741825)) [2020-10-26 04:05:53,861 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-26 04:05:53,861 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-10-26 04:05:53,862 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-26 04:05:53,862 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-10-26 04:05:53,862 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2020-10-26 04:05:53,862 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-10-26 04:05:53,862 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-10-26 04:05:53,862 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:05:53,863 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:05:53,863 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-10-26 04:05:53,863 INFO L274 CegarLoopResult]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2020-10-26 04:05:53,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:05:53 BoogieIcfgContainer [2020-10-26 04:05:53,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:05:53,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:05:53,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:05:53,883 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:05:53,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:52" (3/4) ... [2020-10-26 04:05:53,887 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:05:53,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:05:53,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:05:53,950 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:05:53,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:05:53,953 INFO L168 Benchmark]: Toolchain (without parser) took 1793.73 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.5 MB in the beginning and 43.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,954 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 37.7 MB. Free memory was 20.6 MB in the beginning and 20.6 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:05:53,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.59 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 28.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.46 ms. Allocated memory is still 48.2 MB. Free memory was 28.5 MB in the beginning and 27.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,956 INFO L168 Benchmark]: Boogie Preprocessor took 38.68 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 26.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,957 INFO L168 Benchmark]: RCFGBuilder took 403.22 ms. Allocated memory is still 48.2 MB. Free memory was 26.2 MB in the beginning and 28.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,958 INFO L168 Benchmark]: TraceAbstraction took 886.04 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.5 MB in the beginning and 26.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,959 INFO L168 Benchmark]: Witness Printer took 68.01 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 43.0 MB in the end (delta: -16.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:53,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 37.7 MB. Free memory was 20.6 MB in the beginning and 20.6 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.59 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 28.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.46 ms. Allocated memory is still 48.2 MB. Free memory was 28.5 MB in the beginning and 27.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.68 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 26.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 403.22 ms. Allocated memory is still 48.2 MB. Free memory was 26.2 MB in the beginning and 28.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 886.04 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.5 MB in the beginning and 26.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.01 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 43.0 MB in the end (delta: -16.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 < x / 2 + 1073741825 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 24 SDslu, 12 SDs, 0 SdLazy, 46 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...