./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/gcd_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab 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/bitvector/gcd_3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02e9294118e002d2445af62127a7232f85fd6228 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:54:13,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:54:13,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:54:13,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:54:13,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:54:13,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:54:13,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:54:13,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:54:13,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:54:13,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:54:13,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:54:13,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:54:13,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:54:13,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:54:13,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:54:13,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:54:13,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:54:13,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:54:13,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:54:13,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:54:13,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:54:13,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:54:13,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:54:13,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:54:13,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:54:13,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:54:13,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:54:13,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:54:13,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:54:13,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:54:13,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:54:13,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:54:13,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:54:13,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:54:13,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:54:13,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:54:13,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:54:13,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:54:13,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:54:13,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:54:13,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:54:13,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-28 02:54:13,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:54:13,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:54:13,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:54:13,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:54:13,914 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:54:13,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:54:13,915 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:54:13,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:54:13,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:54:13,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:54:13,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:54:13,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:54:13,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:54:13,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:54:13,918 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:54:13,918 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:54:13,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:54:13,919 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:54:13,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:54:13,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:54:13,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:54:13,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:54:13,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:54:13,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:54:13,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:54:13,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:54:13,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:54:13,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:54:13,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:54:13,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:54:13,923 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02e9294118e002d2445af62127a7232f85fd6228 [2019-11-28 02:54:14,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:54:14,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:54:14,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:54:14,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:54:14,239 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:54:14,241 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/gcd_3.c [2019-11-28 02:54:14,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6426f484/feaae50f6e93445e993a210e8fc71981/FLAG021d8b59e [2019-11-28 02:54:14,762 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:54:14,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/gcd_3.c [2019-11-28 02:54:14,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6426f484/feaae50f6e93445e993a210e8fc71981/FLAG021d8b59e [2019-11-28 02:54:15,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6426f484/feaae50f6e93445e993a210e8fc71981 [2019-11-28 02:54:15,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:54:15,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:54:15,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:54:15,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:54:15,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:54:15,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f4d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15, skipping insertion in model container [2019-11-28 02:54:15,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:54:15,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:54:15,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:54:15,380 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:54:15,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:54:15,408 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:54:15,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15 WrapperNode [2019-11-28 02:54:15,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:54:15,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:54:15,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:54:15,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:54:15,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:54:15,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:54:15,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:54:15,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:54:15,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (1/1) ... [2019-11-28 02:54:15,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:54:15,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:54:15,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:54:15,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:54:15,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (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 02:54:15,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:54:15,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:54:15,801 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:54:15,801 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 02:54:15,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:15 BoogieIcfgContainer [2019-11-28 02:54:15,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:54:15,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:54:15,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:54:15,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:54:15,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:54:15" (1/3) ... [2019-11-28 02:54:15,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2708bd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:15, skipping insertion in model container [2019-11-28 02:54:15,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:15" (2/3) ... [2019-11-28 02:54:15,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2708bd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:15, skipping insertion in model container [2019-11-28 02:54:15,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:15" (3/3) ... [2019-11-28 02:54:15,828 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd_3.c [2019-11-28 02:54:15,846 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:54:15,854 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:54:15,869 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:54:15,906 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:54:15,907 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:54:15,907 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:54:15,907 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:54:15,907 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:54:15,908 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:54:15,908 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:54:15,908 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:54:15,926 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-28 02:54:15,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 02:54:15,932 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:54:15,933 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 02:54:15,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:54:15,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:54:15,945 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-28 02:54:15,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:54:15,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813712369] [2019-11-28 02:54:15,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:54:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:54:16,109 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 02:54:16,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813712369] [2019-11-28 02:54:16,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:54:16,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:54:16,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429347861] [2019-11-28 02:54:16,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:54:16,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:54:16,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:54:16,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:54:16,142 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-11-28 02:54:16,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:54:16,223 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-11-28 02:54:16,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:54:16,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-28 02:54:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:54:16,236 INFO L225 Difference]: With dead ends: 40 [2019-11-28 02:54:16,237 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 02:54:16,244 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 02:54:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 02:54:16,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 02:54:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 02:54:16,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-28 02:54:16,285 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 3 [2019-11-28 02:54:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:54:16,286 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-28 02:54:16,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:54:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-28 02:54:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:54:16,287 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:54:16,288 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:54:16,289 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:54:16,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:54:16,290 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2019-11-28 02:54:16,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:54:16,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257249190] [2019-11-28 02:54:16,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:54:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:54:16,334 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 02:54:16,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257249190] [2019-11-28 02:54:16,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:54:16,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:54:16,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781105286] [2019-11-28 02:54:16,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:54:16,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:54:16,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:54:16,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:54:16,339 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2019-11-28 02:54:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:54:16,358 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-11-28 02:54:16,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:54:16,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:54:16,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:54:16,360 INFO L225 Difference]: With dead ends: 10 [2019-11-28 02:54:16,360 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 02:54:16,364 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 02:54:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 02:54:16,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 02:54:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 02:54:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 02:54:16,367 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-11-28 02:54:16,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:54:16,367 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 02:54:16,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:54:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 02:54:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:54:16,368 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:54:16,368 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:54:16,369 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:54:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:54:16,370 INFO L82 PathProgramCache]: Analyzing trace with hash 963371, now seen corresponding path program 1 times [2019-11-28 02:54:16,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:54:16,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742880848] [2019-11-28 02:54:16,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:54:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:54:16,398 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 02:54:16,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742880848] [2019-11-28 02:54:16,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:54:16,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:54:16,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36543391] [2019-11-28 02:54:16,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:54:16,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:54:16,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:54:16,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:54:16,400 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-11-28 02:54:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:54:16,407 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-28 02:54:16,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:54:16,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:54:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:54:16,408 INFO L225 Difference]: With dead ends: 9 [2019-11-28 02:54:16,408 INFO L226 Difference]: Without dead ends: 8 [2019-11-28 02:54:16,409 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 02:54:16,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-28 02:54:16,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-28 02:54:16,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 02:54:16,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-28 02:54:16,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-11-28 02:54:16,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:54:16,412 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-28 02:54:16,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:54:16,412 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-28 02:54:16,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:54:16,412 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:54:16,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:54:16,413 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:54:16,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:54:16,413 INFO L82 PathProgramCache]: Analyzing trace with hash 29864549, now seen corresponding path program 1 times [2019-11-28 02:54:16,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:54:16,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665181912] [2019-11-28 02:54:16,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:54:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:54:16,436 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 02:54:16,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665181912] [2019-11-28 02:54:16,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:54:16,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:54:16,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527144274] [2019-11-28 02:54:16,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:54:16,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:54:16,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:54:16,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:54:16,439 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-11-28 02:54:16,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:54:16,446 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-11-28 02:54:16,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:54:16,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 02:54:16,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:54:16,447 INFO L225 Difference]: With dead ends: 8 [2019-11-28 02:54:16,447 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:54:16,448 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 02:54:16,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:54:16,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:54:16,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:54:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:54:16,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-28 02:54:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:54:16,449 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:54:16,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:54:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:54:16,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:54:16,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:54:16,465 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-28 02:54:16,465 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-28 02:54:16,465 INFO L246 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-28 02:54:16,465 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 02:54:16,465 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:54:16,466 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:54:16,466 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 02:54:16,466 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:54:16,466 INFO L246 CegarLoopResult]: For program point L17-1(lines 11 23) no Hoare annotation was computed. [2019-11-28 02:54:16,466 INFO L246 CegarLoopResult]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2019-11-28 02:54:16,466 INFO L249 CegarLoopResult]: At program point L38(lines 26 39) the Hoare annotation is: true [2019-11-28 02:54:16,467 INFO L246 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-28 02:54:16,467 INFO L246 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-11-28 02:54:16,467 INFO L249 CegarLoopResult]: At program point L34-1(lines 34 36) the Hoare annotation is: true [2019-11-28 02:54:16,467 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-28 02:54:16,467 INFO L249 CegarLoopResult]: At program point L22(lines 10 23) the Hoare annotation is: true [2019-11-28 02:54:16,467 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-28 02:54:16,468 INFO L246 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-11-28 02:54:16,468 INFO L246 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2019-11-28 02:54:16,468 INFO L246 CegarLoopResult]: For program point L14-4(lines 11 23) no Hoare annotation was computed. [2019-11-28 02:54:16,468 INFO L246 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-28 02:54:16,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:54:16 BoogieIcfgContainer [2019-11-28 02:54:16,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:54:16,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:54:16,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:54:16,479 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:54:16,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:15" (3/4) ... [2019-11-28 02:54:16,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:54:16,495 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 02:54:16,495 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:54:16,548 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:54:16,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:54:16,551 INFO L168 Benchmark]: Toolchain (without parser) took 1394.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:16,552 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:54:16,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.19 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:16,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -199.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:16,554 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:16,555 INFO L168 Benchmark]: RCFGBuilder took 275.96 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:16,556 INFO L168 Benchmark]: TraceAbstraction took 668.00 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:16,556 INFO L168 Benchmark]: Witness Printer took 69.91 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 02:54:16,560 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.19 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 97.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -199.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.69 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 275.96 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 668.00 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * Witness Printer took 69.91 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 24 SDslu, 17 SDs, 0 SdLazy, 19 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...