./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/CookSeeZuleger-TACAS2013-Fig7a.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 f9de9875f09e594325a645528f016ce12ac5c646 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:24:18,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:24:18,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:24:18,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:24:18,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:24:18,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:24:18,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:24:18,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:24:18,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:24:18,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:24:18,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:24:18,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:24:18,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:24:18,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:24:18,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:24:18,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:24:18,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:24:18,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:24:18,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:24:18,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:24:18,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:24:18,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:24:18,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:24:18,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:24:18,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:24:18,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:24:18,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:24:18,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:24:18,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:24:18,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:24:18,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:24:18,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:24:18,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:24:18,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:24:19,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:24:19,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:24:19,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:24:19,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:24:19,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:24:19,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:24:19,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:24:19,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 20:24:19,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:24:19,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:24:19,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:24:19,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:24:19,042 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:24:19,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:24:19,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:24:19,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:24:19,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:24:19,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:24:19,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:24:19,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:24:19,045 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:24:19,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:24:19,046 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:24:19,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:24:19,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:24:19,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:24:19,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:24:19,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:24:19,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:24:19,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:24:19,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:24:19,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:24:19,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:24:19,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:24:19,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:24:19,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:24:19,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2019-11-28 20:24:19,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:24:19,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:24:19,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:24:19,399 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:24:19,399 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:24:19,400 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2019-11-28 20:24:19,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/853573b4e/8e3f8311eb6e4f549444e987d1f478e4/FLAG2847e7d1c [2019-11-28 20:24:19,935 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:24:19,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2019-11-28 20:24:19,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/853573b4e/8e3f8311eb6e4f549444e987d1f478e4/FLAG2847e7d1c [2019-11-28 20:24:20,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/853573b4e/8e3f8311eb6e4f549444e987d1f478e4 [2019-11-28 20:24:20,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:24:20,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:24:20,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:24:20,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:24:20,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:24:20,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2727f677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20, skipping insertion in model container [2019-11-28 20:24:20,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:24:20,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:24:20,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:24:20,565 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:24:20,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:24:20,592 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:24:20,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20 WrapperNode [2019-11-28 20:24:20,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:24:20,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:24:20,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:24:20,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:24:20,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:24:20,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:24:20,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:24:20,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:24:20,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (1/1) ... [2019-11-28 20:24:20,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:24:20,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:24:20,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:24:20,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:24:20,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (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 [2019-11-28 20:24:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:24:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:24:20,985 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:24:20,985 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:24:20,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:20 BoogieIcfgContainer [2019-11-28 20:24:20,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:24:20,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:24:20,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:24:20,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:24:20,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:24:20" (1/3) ... [2019-11-28 20:24:20,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476a7bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:24:20, skipping insertion in model container [2019-11-28 20:24:20,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:20" (2/3) ... [2019-11-28 20:24:20,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476a7bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:24:20, skipping insertion in model container [2019-11-28 20:24:20,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:20" (3/3) ... [2019-11-28 20:24:20,997 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2019-11-28 20:24:21,011 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:24:21,021 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-28 20:24:21,040 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 20:24:21,098 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:24:21,098 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:24:21,099 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:24:21,099 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:24:21,099 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:24:21,099 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:24:21,100 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:24:21,100 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:24:21,122 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-28 20:24:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 20:24:21,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:21,128 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 20:24:21,128 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:21,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:21,134 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-28 20:24:21,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:21,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531405195] [2019-11-28 20:24:21,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:21,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531405195] [2019-11-28 20:24:21,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:21,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:24:21,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014825395] [2019-11-28 20:24:21,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:21,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:21,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:21,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:21,324 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-11-28 20:24:21,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:21,365 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-28 20:24:21,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:21,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 20:24:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:21,374 INFO L225 Difference]: With dead ends: 23 [2019-11-28 20:24:21,375 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 20:24:21,377 INFO L630 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 [2019-11-28 20:24:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 20:24:21,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 20:24:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 20:24:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-11-28 20:24:21,407 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2019-11-28 20:24:21,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:21,407 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-11-28 20:24:21,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:21,408 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-11-28 20:24:21,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 20:24:21,408 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:21,408 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 20:24:21,409 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:21,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:21,409 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-28 20:24:21,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:21,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530260524] [2019-11-28 20:24:21,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:21,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530260524] [2019-11-28 20:24:21,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:21,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:24:21,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198411084] [2019-11-28 20:24:21,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:21,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:21,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:21,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:21,446 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2019-11-28 20:24:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:21,469 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-28 20:24:21,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:21,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 20:24:21,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:21,471 INFO L225 Difference]: With dead ends: 14 [2019-11-28 20:24:21,471 INFO L226 Difference]: Without dead ends: 13 [2019-11-28 20:24:21,472 INFO L630 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 [2019-11-28 20:24:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-28 20:24:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 20:24:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 20:24:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-11-28 20:24:21,479 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2019-11-28 20:24:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:21,479 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-11-28 20:24:21,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:21,480 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-11-28 20:24:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 20:24:21,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:21,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 20:24:21,481 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:21,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:21,481 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-28 20:24:21,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:21,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220381392] [2019-11-28 20:24:21,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:21,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220381392] [2019-11-28 20:24:21,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:21,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:24:21,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452452663] [2019-11-28 20:24:21,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:21,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:21,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:21,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:21,513 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2019-11-28 20:24:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:21,531 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-28 20:24:21,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:21,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 20:24:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:21,532 INFO L225 Difference]: With dead ends: 14 [2019-11-28 20:24:21,533 INFO L226 Difference]: Without dead ends: 13 [2019-11-28 20:24:21,533 INFO L630 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 [2019-11-28 20:24:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-28 20:24:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-28 20:24:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 20:24:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-28 20:24:21,537 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2019-11-28 20:24:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:21,538 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-28 20:24:21,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-28 20:24:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 20:24:21,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:21,539 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 20:24:21,539 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:21,540 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-28 20:24:21,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:21,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936239888] [2019-11-28 20:24:21,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:21,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936239888] [2019-11-28 20:24:21,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:21,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:24:21,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550571109] [2019-11-28 20:24:21,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:21,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:21,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:21,568 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2019-11-28 20:24:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:21,590 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-11-28 20:24:21,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:21,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 20:24:21,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:21,593 INFO L225 Difference]: With dead ends: 12 [2019-11-28 20:24:21,593 INFO L226 Difference]: Without dead ends: 11 [2019-11-28 20:24:21,594 INFO L630 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 [2019-11-28 20:24:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-28 20:24:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 20:24:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 20:24:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-28 20:24:21,601 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2019-11-28 20:24:21,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:21,601 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-28 20:24:21,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-28 20:24:21,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 20:24:21,602 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:21,603 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:24:21,603 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:21,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:21,604 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2019-11-28 20:24:21,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:21,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052543533] [2019-11-28 20:24:21,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:21,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052543533] [2019-11-28 20:24:21,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:21,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:24:21,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86921834] [2019-11-28 20:24:21,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:21,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:21,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:21,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:21,648 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 3 states. [2019-11-28 20:24:21,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:21,660 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-11-28 20:24:21,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:21,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 20:24:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:21,661 INFO L225 Difference]: With dead ends: 11 [2019-11-28 20:24:21,661 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 20:24:21,662 INFO L630 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 [2019-11-28 20:24:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 20:24:21,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 20:24:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 20:24:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-28 20:24:21,665 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2019-11-28 20:24:21,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:21,665 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-28 20:24:21,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-28 20:24:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:24:21,666 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:24:21,666 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:24:21,666 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:24:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:24:21,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166356, now seen corresponding path program 1 times [2019-11-28 20:24:21,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:24:21,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461479285] [2019-11-28 20:24:21,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:24:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:24:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:24:21,693 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461479285] [2019-11-28 20:24:21,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:24:21,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:24:21,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893325063] [2019-11-28 20:24:21,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:24:21,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:24:21,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:24:21,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:24:21,696 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-11-28 20:24:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:24:21,709 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-11-28 20:24:21,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:24:21,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-28 20:24:21,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:24:21,711 INFO L225 Difference]: With dead ends: 10 [2019-11-28 20:24:21,711 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:24:21,712 INFO L630 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 [2019-11-28 20:24:21,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:24:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:24:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:24:21,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:24:21,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-28 20:24:21,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:24:21,714 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:24:21,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:24:21,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:24:21,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:24:21,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 20:24:21,766 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-28 20:24:21,767 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 20:24:21,767 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-28 20:24:21,767 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-28 20:24:21,767 INFO L246 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2019-11-28 20:24:21,767 INFO L246 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-28 20:24:21,767 INFO L246 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2019-11-28 20:24:21,768 INFO L242 CegarLoopResult]: At program point L21-2(lines 20 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~d~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-28 20:24:21,768 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-28 20:24:21,768 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-28 20:24:21,769 INFO L242 CegarLoopResult]: At program point L30(lines 15 31) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-11-28 20:24:21,773 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 20:24:21,773 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-28 20:24:21,773 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 20:24:21,773 INFO L246 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-28 20:24:21,774 INFO L246 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-28 20:24:21,774 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-28 20:24:21,774 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-28 20:24:21,774 INFO L246 CegarLoopResult]: For program point L20-2(lines 20 29) no Hoare annotation was computed. [2019-11-28 20:24:21,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:24:21 BoogieIcfgContainer [2019-11-28 20:24:21,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:24:21,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:24:21,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:24:21,805 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:24:21,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:20" (3/4) ... [2019-11-28 20:24:21,809 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:24:21,820 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 20:24:21,820 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 20:24:21,873 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:24:21,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:24:21,876 INFO L168 Benchmark]: Toolchain (without parser) took 1535.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:21,876 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:24:21,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:21,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -203.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:21,879 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:21,879 INFO L168 Benchmark]: RCFGBuilder took 268.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:21,880 INFO L168 Benchmark]: TraceAbstraction took 816.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:24:21,881 INFO L168 Benchmark]: Witness Printer took 68.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:24:21,885 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -203.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 268.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 816.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * Witness Printer took 68.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && d <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 34 SDslu, 10 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...