./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.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 e334e85dd18553afecc96b27cf49a003304cbca8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 01:29:14,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:29:14,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:29:14,905 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:29:14,906 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:29:14,907 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:29:14,908 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:29:14,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:29:14,912 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:29:14,912 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:29:14,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:29:14,914 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:29:14,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:29:14,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:29:14,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:29:14,918 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:29:14,919 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:29:14,921 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:29:14,923 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:29:14,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:29:14,926 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:29:14,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:29:14,930 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:29:14,930 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:29:14,931 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:29:14,931 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:29:14,933 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:29:14,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:29:14,934 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:29:14,935 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:29:14,936 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:29:14,936 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:29:14,937 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:29:14,937 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:29:14,938 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:29:14,939 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:29:14,939 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:29:14,960 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:29:14,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:29:14,961 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:29:14,961 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:29:14,962 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:29:14,962 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:29:14,962 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:29:14,962 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:29:14,962 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:29:14,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:29:14,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:29:14,964 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:29:14,965 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:29:14,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:29:14,965 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:29:14,965 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:29:14,966 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:29:14,966 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:29:14,966 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:29:14,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:29:14,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:29:14,967 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:29:14,968 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:29:14,968 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:29:14,968 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:29:14,968 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:29:14,968 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:29:14,969 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> e334e85dd18553afecc96b27cf49a003304cbca8 [2019-01-14 01:29:15,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:29:15,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:29:15,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:29:15,030 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:29:15,030 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:29:15,032 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2019-01-14 01:29:15,104 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3495e61/bc80daa6c3e948fa99a22f6550181877/FLAG6723599d9 [2019-01-14 01:29:15,495 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:29:15,496 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2019-01-14 01:29:15,504 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3495e61/bc80daa6c3e948fa99a22f6550181877/FLAG6723599d9 [2019-01-14 01:29:15,883 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3495e61/bc80daa6c3e948fa99a22f6550181877 [2019-01-14 01:29:15,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:29:15,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:29:15,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:29:15,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:29:15,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:29:15,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:29:15" (1/1) ... [2019-01-14 01:29:15,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1944673d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:15, skipping insertion in model container [2019-01-14 01:29:15,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:29:15" (1/1) ... [2019-01-14 01:29:15,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:29:15,920 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:29:16,072 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:29:16,076 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:29:16,092 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:29:16,104 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:29:16,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16 WrapperNode [2019-01-14 01:29:16,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:29:16,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:29:16,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:29:16,106 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:29:16,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:29:16,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:29:16,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:29:16,134 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:29:16,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (1/1) ... [2019-01-14 01:29:16,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:29:16,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:29:16,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:29:16,152 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:29:16,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (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 [2019-01-14 01:29:16,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:29:16,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:29:16,496 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:29:16,497 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 01:29:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:29:16 BoogieIcfgContainer [2019-01-14 01:29:16,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:29:16,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:29:16,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:29:16,506 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:29:16,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:29:15" (1/3) ... [2019-01-14 01:29:16,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28daa941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:29:16, skipping insertion in model container [2019-01-14 01:29:16,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:29:16" (2/3) ... [2019-01-14 01:29:16,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28daa941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:29:16, skipping insertion in model container [2019-01-14 01:29:16,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:29:16" (3/3) ... [2019-01-14 01:29:16,521 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2019-01-14 01:29:16,536 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:29:16,547 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:29:16,567 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:29:16,607 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:29:16,608 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:29:16,608 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:29:16,608 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:29:16,608 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:29:16,609 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:29:16,609 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:29:16,609 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:29:16,609 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:29:16,621 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-14 01:29:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 01:29:16,628 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:29:16,629 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 01:29:16,632 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:29:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:29:16,638 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2019-01-14 01:29:16,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:29:16,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:29:16,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:16,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:16,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:16,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:29:16,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:29:16,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:29:16,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:29:16,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:29:16,805 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-01-14 01:29:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:29:16,873 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-01-14 01:29:16,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:29:16,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 01:29:16,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:29:16,884 INFO L225 Difference]: With dead ends: 29 [2019-01-14 01:29:16,884 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 01:29:16,888 INFO L631 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 [2019-01-14 01:29:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 01:29:16,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-01-14 01:29:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-14 01:29:16,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-01-14 01:29:16,922 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2019-01-14 01:29:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:29:16,922 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-01-14 01:29:16,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:29:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-01-14 01:29:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 01:29:16,923 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:29:16,923 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 01:29:16,923 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:29:16,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:29:16,924 INFO L82 PathProgramCache]: Analyzing trace with hash 920230152, now seen corresponding path program 1 times [2019-01-14 01:29:16,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:29:16,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:29:16,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:16,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:16,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:16,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:29:16,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:29:16,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:29:16,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:29:16,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:29:16,979 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-01-14 01:29:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:29:17,027 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-01-14 01:29:17,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:29:17,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 01:29:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:29:17,032 INFO L225 Difference]: With dead ends: 15 [2019-01-14 01:29:17,032 INFO L226 Difference]: Without dead ends: 14 [2019-01-14 01:29:17,034 INFO L631 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 [2019-01-14 01:29:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-14 01:29:17,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-01-14 01:29:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 01:29:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-01-14 01:29:17,040 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2019-01-14 01:29:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:29:17,040 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-01-14 01:29:17,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:29:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-01-14 01:29:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 01:29:17,041 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:29:17,042 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:29:17,043 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:29:17,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:29:17,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1537636308, now seen corresponding path program 1 times [2019-01-14 01:29:17,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:29:17,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:29:17,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:17,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:17,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:17,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:29:17,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:29:17,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:29:17,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:29:17,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:29:17,110 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2019-01-14 01:29:17,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:29:17,166 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-01-14 01:29:17,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 01:29:17,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-01-14 01:29:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:29:17,167 INFO L225 Difference]: With dead ends: 14 [2019-01-14 01:29:17,167 INFO L226 Difference]: Without dead ends: 13 [2019-01-14 01:29:17,168 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 01:29:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-14 01:29:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-01-14 01:29:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-14 01:29:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-01-14 01:29:17,172 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2019-01-14 01:29:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:29:17,172 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-01-14 01:29:17,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:29:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-01-14 01:29:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 01:29:17,173 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:29:17,173 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:29:17,173 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:29:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:29:17,174 INFO L82 PathProgramCache]: Analyzing trace with hash -422085238, now seen corresponding path program 1 times [2019-01-14 01:29:17,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:29:17,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:29:17,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:17,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:17,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:29:17,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:29:17,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:29:17,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:29:17,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:29:17,235 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-01-14 01:29:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:29:17,252 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-01-14 01:29:17,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:29:17,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-14 01:29:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:29:17,254 INFO L225 Difference]: With dead ends: 14 [2019-01-14 01:29:17,254 INFO L226 Difference]: Without dead ends: 13 [2019-01-14 01:29:17,255 INFO L631 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 [2019-01-14 01:29:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-14 01:29:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-01-14 01:29:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-14 01:29:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-01-14 01:29:17,259 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-01-14 01:29:17,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:29:17,260 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-01-14 01:29:17,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:29:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-01-14 01:29:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 01:29:17,260 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:29:17,261 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:29:17,261 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:29:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:29:17,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1322960227, now seen corresponding path program 1 times [2019-01-14 01:29:17,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:29:17,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:29:17,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:17,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:17,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 01:29:17,349 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 01:29:17,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:17,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 01:29:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:17,456 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 01:29:17,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-01-14 01:29:17,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:29:17,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:29:17,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:29:17,458 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-01-14 01:29:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:29:17,703 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-01-14 01:29:17,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 01:29:17,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-14 01:29:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:29:17,708 INFO L225 Difference]: With dead ends: 20 [2019-01-14 01:29:17,708 INFO L226 Difference]: Without dead ends: 19 [2019-01-14 01:29:17,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:29:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-14 01:29:17,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-01-14 01:29:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 01:29:17,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-01-14 01:29:17,715 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 11 [2019-01-14 01:29:17,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:29:17,715 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-01-14 01:29:17,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:29:17,715 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-01-14 01:29:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-14 01:29:17,716 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:29:17,716 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1] [2019-01-14 01:29:17,717 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:29:17,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:29:17,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1011103644, now seen corresponding path program 2 times [2019-01-14 01:29:17,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:29:17,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:29:17,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:29:17,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:29:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:29:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:29:17,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 01:29:17,820 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 01:29:17,844 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 01:29:17,868 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-14 01:29:17,868 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 01:29:17,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 01:29:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-01-14 01:29:18,079 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 01:29:18,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2019-01-14 01:29:18,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-14 01:29:18,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-14 01:29:18,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-14 01:29:18,081 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 7 states. [2019-01-14 01:29:18,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:29:18,421 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-01-14 01:29:18,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 01:29:18,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-01-14 01:29:18,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:29:18,423 INFO L225 Difference]: With dead ends: 29 [2019-01-14 01:29:18,423 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 01:29:18,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-01-14 01:29:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 01:29:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 01:29:18,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 01:29:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 01:29:18,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-01-14 01:29:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:29:18,425 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 01:29:18,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-14 01:29:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 01:29:18,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 01:29:18,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 01:29:18,524 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 01:29:18,524 INFO L451 ceAbstractionStarter]: At program point L29(lines 13 30) the Hoare annotation is: true [2019-01-14 01:29:18,525 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-01-14 01:29:18,525 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-01-14 01:29:18,525 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2019-01-14 01:29:18,525 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-01-14 01:29:18,525 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 2147483647) (<= 0 ULTIMATE.start_main_~v2~0) (<= ULTIMATE.start_main_~m~0 2147483647) (<= ULTIMATE.start_main_~v1~0 2147483647)) [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 28) no Hoare annotation was computed. [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-01-14 01:29:18,526 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-01-14 01:29:18,527 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-01-14 01:29:18,527 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-01-14 01:29:18,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:29:18 BoogieIcfgContainer [2019-01-14 01:29:18,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:29:18,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:29:18,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:29:18,542 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:29:18,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:29:16" (3/4) ... [2019-01-14 01:29:18,545 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 01:29:18,555 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 01:29:18,555 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 01:29:18,600 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:29:18,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:29:18,601 INFO L168 Benchmark]: Toolchain (without parser) took 2713.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -74.4 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:29:18,602 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:29:18,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.32 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:29:18,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.39 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:29:18,604 INFO L168 Benchmark]: Boogie Preprocessor took 16.76 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:29:18,604 INFO L168 Benchmark]: RCFGBuilder took 347.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:29:18,605 INFO L168 Benchmark]: TraceAbstraction took 2040.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 11.5 GB. [2019-01-14 01:29:18,606 INFO L168 Benchmark]: Witness Printer took 58.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:29:18,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 216.32 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 28.39 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.76 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 347.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2040.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 11.5 GB. * Witness Printer took 58.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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: 23]: 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 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((n <= 2147483647 && 0 <= v2) && m <= 2147483647) && v1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. SAFE Result, 1.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 43 SDslu, 28 SDs, 0 SdLazy, 61 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 82 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2396 SizeOfPredicates, 1 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 10/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...