./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-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-counterex1b_false-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 b51d3ff9a76866bd9c6637bca261a8433dd4524e ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 01:17:24,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:17:24,610 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:17:24,624 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:17:24,624 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:17:24,625 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:17:24,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:17:24,629 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:17:24,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:17:24,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:17:24,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:17:24,633 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:17:24,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:17:24,635 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:17:24,637 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:17:24,637 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:17:24,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:17:24,641 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:17:24,643 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:17:24,645 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:17:24,646 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:17:24,648 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:17:24,650 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:17:24,650 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:17:24,651 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:17:24,651 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:17:24,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:17:24,654 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:17:24,655 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:17:24,656 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:17:24,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:17:24,657 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:17:24,657 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:17:24,657 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:17:24,658 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:17:24,660 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:17:24,660 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:17:24,675 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:17:24,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:17:24,676 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:17:24,676 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:17:24,676 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:17:24,677 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:17:24,677 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:17:24,678 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:17:24,678 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:17:24,678 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:17:24,678 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:17:24,678 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:17:24,679 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:17:24,679 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:17:24,679 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:17:24,679 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:17:24,679 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:17:24,679 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:17:24,680 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:17:24,681 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:17:24,681 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:17:24,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:17:24,682 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:17:24,682 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:17:24,682 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:17:24,682 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:17:24,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:17:24,683 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 -> b51d3ff9a76866bd9c6637bca261a8433dd4524e [2019-01-14 01:17:24,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:17:24,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:17:24,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:17:24,741 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:17:24,742 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:17:24,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c [2019-01-14 01:17:24,810 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bf7d8f1b/3686d943d2cf4bd49b2f80e0437998be/FLAGda63250d6 [2019-01-14 01:17:25,291 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:17:25,292 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c [2019-01-14 01:17:25,299 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bf7d8f1b/3686d943d2cf4bd49b2f80e0437998be/FLAGda63250d6 [2019-01-14 01:17:25,638 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bf7d8f1b/3686d943d2cf4bd49b2f80e0437998be [2019-01-14 01:17:25,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:17:25,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:17:25,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:17:25,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:17:25,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:17:25,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5089c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25, skipping insertion in model container [2019-01-14 01:17:25,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:17:25,680 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:17:25,853 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:17:25,858 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:17:25,877 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:17:25,892 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:17:25,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25 WrapperNode [2019-01-14 01:17:25,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:17:25,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:17:25,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:17:25,894 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:17:25,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:17:25,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:17:25,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:17:25,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:17:25,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (1/1) ... [2019-01-14 01:17:25,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:17:25,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:17:25,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:17:25,964 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:17:25,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (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 01:17:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:17:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:17:26,415 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:17:26,415 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 01:17:26,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:26 BoogieIcfgContainer [2019-01-14 01:17:26,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:17:26,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:17:26,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:17:26,421 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:17:26,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:17:25" (1/3) ... [2019-01-14 01:17:26,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea3ef64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:17:26, skipping insertion in model container [2019-01-14 01:17:26,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:25" (2/3) ... [2019-01-14 01:17:26,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea3ef64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:17:26, skipping insertion in model container [2019-01-14 01:17:26,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:26" (3/3) ... [2019-01-14 01:17:26,424 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c [2019-01-14 01:17:26,433 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:17:26,442 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-14 01:17:26,458 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-14 01:17:26,486 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:17:26,486 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:17:26,487 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:17:26,487 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:17:26,487 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:17:26,487 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:17:26,487 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:17:26,487 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:17:26,487 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:17:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-01-14 01:17:26,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:17:26,508 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:26,509 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:17:26,512 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:26,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:26,518 INFO L82 PathProgramCache]: Analyzing trace with hash 963948, now seen corresponding path program 1 times [2019-01-14 01:17:26,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:26,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:26,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:26,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:26,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:26,626 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 01:17:26,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:26,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:17:26,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 01:17:26,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 01:17:26,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 01:17:26,645 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-01-14 01:17:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:26,660 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2019-01-14 01:17:26,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 01:17:26,661 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-01-14 01:17:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:26,671 INFO L225 Difference]: With dead ends: 47 [2019-01-14 01:17:26,671 INFO L226 Difference]: Without dead ends: 20 [2019-01-14 01:17:26,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 01:17:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-01-14 01:17:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-01-14 01:17:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 01:17:26,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-01-14 01:17:26,707 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 4 [2019-01-14 01:17:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:26,708 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-01-14 01:17:26,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 01:17:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-01-14 01:17:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 01:17:26,709 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:26,709 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 01:17:26,709 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:26,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:26,710 INFO L82 PathProgramCache]: Analyzing trace with hash 925832983, now seen corresponding path program 1 times [2019-01-14 01:17:26,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:26,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:26,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:26,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:26,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:26,789 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 01:17:26,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:26,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:17:26,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:26,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:26,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:26,792 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 3 states. [2019-01-14 01:17:26,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:26,838 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-01-14 01:17:26,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:26,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 01:17:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:26,840 INFO L225 Difference]: With dead ends: 20 [2019-01-14 01:17:26,840 INFO L226 Difference]: Without dead ends: 19 [2019-01-14 01:17:26,841 INFO L631 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 [2019-01-14 01:17:26,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-14 01:17:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-14 01:17:26,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-14 01:17:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-01-14 01:17:26,846 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 6 [2019-01-14 01:17:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:26,848 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-01-14 01:17:26,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-01-14 01:17:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 01:17:26,848 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:26,848 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 01:17:26,849 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:26,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:26,849 INFO L82 PathProgramCache]: Analyzing trace with hash 925833038, now seen corresponding path program 1 times [2019-01-14 01:17:26,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:26,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:26,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:26,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:26,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:26,907 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 01:17:26,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:26,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:17:26,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:26,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:26,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:26,909 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 3 states. [2019-01-14 01:17:27,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:27,030 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2019-01-14 01:17:27,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:27,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 01:17:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:27,031 INFO L225 Difference]: With dead ends: 34 [2019-01-14 01:17:27,032 INFO L226 Difference]: Without dead ends: 33 [2019-01-14 01:17:27,032 INFO L631 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 [2019-01-14 01:17:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-01-14 01:17:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2019-01-14 01:17:27,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-01-14 01:17:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-01-14 01:17:27,040 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 6 [2019-01-14 01:17:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:27,040 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-01-14 01:17:27,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-01-14 01:17:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 01:17:27,042 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:27,042 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:17:27,042 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:27,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:27,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1363948532, now seen corresponding path program 1 times [2019-01-14 01:17:27,043 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:27,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:27,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:27,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:27,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:27,101 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 01:17:27,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:27,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:17:27,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:27,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:27,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:27,102 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 3 states. [2019-01-14 01:17:27,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:27,113 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2019-01-14 01:17:27,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:27,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-14 01:17:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:27,115 INFO L225 Difference]: With dead ends: 30 [2019-01-14 01:17:27,116 INFO L226 Difference]: Without dead ends: 29 [2019-01-14 01:17:27,116 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 01:17:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-14 01:17:27,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-01-14 01:17:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-14 01:17:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-01-14 01:17:27,122 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 7 [2019-01-14 01:17:27,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:27,122 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-01-14 01:17:27,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:27,123 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2019-01-14 01:17:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 01:17:27,123 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:27,123 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:17:27,124 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:27,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:27,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1363946834, now seen corresponding path program 1 times [2019-01-14 01:17:27,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:27,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:27,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:27,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:27,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:27,194 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 01:17:27,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:27,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 01:17:27,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:17:27,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:17:27,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:17:27,196 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 4 states. [2019-01-14 01:17:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:27,362 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2019-01-14 01:17:27,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 01:17:27,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-01-14 01:17:27,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:27,364 INFO L225 Difference]: With dead ends: 50 [2019-01-14 01:17:27,364 INFO L226 Difference]: Without dead ends: 48 [2019-01-14 01:17:27,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 01:17:27,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-01-14 01:17:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-01-14 01:17:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-01-14 01:17:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2019-01-14 01:17:27,374 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 7 [2019-01-14 01:17:27,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:27,374 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2019-01-14 01:17:27,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:17:27,375 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2019-01-14 01:17:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 01:17:27,376 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:27,376 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:17:27,377 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:27,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:27,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1488503985, now seen corresponding path program 1 times [2019-01-14 01:17:27,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:27,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:27,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:27,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:27,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:17:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:17:27,419 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 01:17:27,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:17:27 BoogieIcfgContainer [2019-01-14 01:17:27,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:17:27,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:17:27,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:17:27,440 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:17:27,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:26" (3/4) ... [2019-01-14 01:17:27,444 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 01:17:27,487 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:17:27,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:17:27,488 INFO L168 Benchmark]: Toolchain (without parser) took 1846.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 954.0 MB in the beginning and 1.0 GB in the end (delta: -94.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:27,492 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:27,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.71 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:27,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.35 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:27,495 INFO L168 Benchmark]: Boogie Preprocessor took 27.67 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:27,495 INFO L168 Benchmark]: RCFGBuilder took 453.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:27,498 INFO L168 Benchmark]: TraceAbstraction took 1022.04 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:27,498 INFO L168 Benchmark]: Witness Printer took 47.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:27,503 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.71 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.35 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.67 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 453.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1022.04 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n; [L15] n = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] COND TRUE x >= 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] COND FALSE !(y >= 0 && __VERIFIER_nondet_int() != 0) [L22] EXPR x - 1 [L22] x = x - 1 [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] COND TRUE y <= n && __VERIFIER_nondet_int() != 0 [L24] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. UNSAFE Result, 0.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 67 SDslu, 28 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...